1
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Wu Y, Lv Y, Wang R, Bao L, Zhang Z, Shi D, Zhang A, Zhang Y, Liu Q, Wu Q, Shi D, Chen K, Jiang G, Li H. Unraveling the Structure-Activity-Stability Relationship over Gallium-Promoted HZSM-5 Nanocrystalline Aggregates for Propane Aromatization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11998-12008. [PMID: 38814080 DOI: 10.1021/acs.langmuir.4c00544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
The aromatization of light alkane is an important process for increasing the aromatic production and utilization efficiency of light alkane resources simultaneously. Herein, Ga-modified HZSM-5 catalysts were prepared and investigated by a series of characterization techniques such as X-ray diffraction, nuclear magnetic resonance spectroscopy, transmission electron microscopy, N2 adsorption-desorption, and NH3 temperature-programmed desorption to study their physicochemical properties. The catalytic performance in propane aromatization was also tested. Importantly, the structure-activity relationship, reaction pathway, and coke formation mechanism in propane aromatization were systematically explored. It was found that different Ga introduction methods would affect the amounts of Brønsted and Lewis acid sites, and Ga-HZSM-5 prepared by the hydrothermal method exhibited higher amounts of Brønsted and Lewis acid sites but a lower B/L ratio. As a result, Ga-HZSM-5 showed higher propane conversion and benzene, toluene, and xylene yield compared with that of Ga2O3/HZSM-5. The propane aromatization reaction pathway indicated that propane dehydrogenation to propene was a crucial step for aromatic formation. The increase of the Lewis acid density in Ga-HZSM-5 can effectively improve the dehydrogenation rate and promote the aromatization reaction. Furthermore, the formation of coke species was studied by thermogravimetry-mass spectrometry and Raman approaches, the results of which indicated that the graphitization degree of coke formed over spent Ga-HZSM-5 is lower, resulting in enhanced anticoking stability.
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Affiliation(s)
- Yiheng Wu
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yangping Lv
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ruipu Wang
- Petrochemical Research Institute, PetroChina, Beijing 102206, China
| | - Lixia Bao
- Analysis and Testing Center, Beijing Institute of Technology, Beijing 102488, China
| | - Zhongdong Zhang
- Petrochemical Research Institute, PetroChina, Beijing 102206, China
| | - Dejun Shi
- Petrochemical Research Institute, PetroChina, Beijing 102206, China
| | - Anlv Zhang
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yaoyuan Zhang
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Qi Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing 102249, China
| | - Qin Wu
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Daxin Shi
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Kangcheng Chen
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum Beijing, Beijing 102249, China
| | - Hansheng Li
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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2
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Liu H, Sun F, Xu J, Zhang H, Wu T, Han S, Zhang S, Mo Y, Ling L, Zhang R, Fan M, Wang B. A density functional theory study on the mechanism of toluene from dimethylcyclopentane catalyzed by the [GaH] 2+ active site of Ga-ZSM-5. Phys Chem Chem Phys 2024; 26:7137-7148. [PMID: 38348666 DOI: 10.1039/d3cp04416e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The ONIOM (ωb97xd/6-31G(d,p):pm6) method was used to study the reaction mechanism of dimethylcyclopentane to toluene by the [GaH]2+ active site of Ga-ZSM-5. The results showed that the rate-determining step in the dimethylcyclopentane aromatization process is the ring expansion process. Compared to those of methylcyclopentane to benzene (D. D. Zhang, H. Y. Liu, L. X. Ling, H. R. Zhang, R. G. Zhang, P. Liu and B. J. Wang, Phys. Chem. Chem. Phys., 2021, 23, 10988-11003.), the free energy barriers of dimethylcyclopentane to toluene are significantly decreased, indicating that toluene is easier to produce than benzene, which confirmed the experimental results that a higher proportion of toluene than benzene is produced in the MTA process.
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Affiliation(s)
- Hongyan Liu
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P. R. China.
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
| | - Furong Sun
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P. R. China.
| | - Junzhuo Xu
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P. R. China.
| | - Hairong Zhang
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P. R. China.
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
| | - Tingting Wu
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P. R. China.
| | - Shenghua Han
- College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P. R. China.
| | - Shijun Zhang
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
| | - Yan Mo
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
| | - Lixia Ling
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
- College of Chemistry Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China
| | - Riguang Zhang
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
| | - Maohong Fan
- College of Engineering and Physical Sciences, and School of Energy Resources, University of Wyoming, Laramie, WY 82071, USA.
| | - Baojun Wang
- State Key Laoratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China.
- College of Chemistry Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi 030024, P. R. China
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3
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Hua Z, Yang Y, Liu J. Direct hydrogenation of carbon dioxide to value-added aromatics. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Yang F, Jia X, Xu R, Liu L, Dai C, Zhao B. Kinetic modelling of methanol transformation into p-xylene on a 3Zn-3Si/ZSM-5 catalyst. NEW J CHEM 2023. [DOI: 10.1039/d2nj03984b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In this work, the study of the kinetics of the transformation of methanol to aromatics was conducted over a 3Zn-3Si/ZSM-5 catalyst for the high selectivity of p-xylene.
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Affiliation(s)
- Fan Yang
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
| | - Xianzhi Jia
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
| | - Rui Xu
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
| | - Lu Liu
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
| | - Chengyi Dai
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
| | - Binran Zhao
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
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5
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Study of Catalytic Properties of the HoxMg1-xAl2O4 Modified HZSM-5 Zeolite in Conversion of Methanol to C2-C4 Alkenes and p-Xylene. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2022. [DOI: 10.9767/bcrec.17.4.15115.725-732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Selective conversion of methanol to C2-C4 alkenes and p-xylene is one of the appealing chemical routes. Currently, there are no effective catalysts for the co-production of C2-C4 alkenes and p-xylene from methanol. To date, modified medium-pore ZSM-5 zeolites are considered one of the excellent candidates for the development of selective catalysts for the conversion of methanol to lower alkenes and aromatic hydrocarbons. In this paper, nanosized (30-33nm) powders of HoхMg1-хAl2O4 spinel structure were obtained by the method of combustion of nitrate solutions of aluminium, magnesium, holmium, diethylmalonate and hydrazine monohydrate with the further calcination of nanopowders at 1000 °C. Obtained nanopowders used in the preparation of a solid-phase catalytic composition of HoхMg1-хAl2O4-HZSM-5. Various physico-chemical properties of the catalytic composition were investigated using X-ray diffraction (XRD), pyridine adsorption (BİO-RAD FTS 3000 MX) and low-temperature nitrogen adsorption (BET) techniques. The textural properties and acidity of the catalysts were altered by adjusting the nanopowder concentration (1.0-5.0 wt.%) in the catalytic composition. The conversion of methanol in the presence of the catalytic compositions was carried out in flow-type fixed-bed catalytic reactor at 400 °C, in the presence of nitrogen carrier gas with 1.0 h-1 flow rate. A correlation between the selectivity to C2-C4 alkenes and p-xylene with a ratio of Lewis (L) and Brønsted (B) acid sites and the volume of the catalyst pore, the amount of the modifier in the catalytic system has been established. As the amount of HoхMg1-хAl2O4 nanopowder increases, the ratio of B/L acid sites and the volume of the catalyst pore decrease, which play a significant role in the increase of the selectivity to C2-C4 alkenes and p-xylene. Maximum yield of C2-C4 alkenes (31.6%) and selectivity to p-xylene (80.5%) is achieved on a catalytic composition containing 5.0 wt.% HoxMg1-xAl2O4. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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6
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Gao FE, Liu JY. Synergistic effect of Brønsted/Lewis acid in olefin aromatization during MTO over Zn modified H-SAPO-34 zeolite: A periodic DFT study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Wen W, Xiao T, Feng B, Zhou C, Li J, Ma H, Zhou Z, Zhang Y, Yang J, Wang Z, Qi F, Bao J, Liu C, Pan Y. Role of formaldehyde in promoting aromatic selectivity during methanol conversion over gallium-modified zeolites. Commun Chem 2022; 5:153. [PMID: 36697679 PMCID: PMC9814038 DOI: 10.1038/s42004-022-00771-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/04/2022] [Indexed: 11/21/2022] Open
Abstract
Gallium-modified HZSM-5 zeolites are known to increase aromatic selectivity in methanol conversion. However, there are still disputes about the exact active sites and the aromatic formation mechanisms over Ga-modified zeolites. In this work, in situ synchrotron radiation photoionization mass spectrometry (SR-PIMS) experiments were carried out to study the behaviors of intermediates and products during methanol conversion over Ga-modified HZSM-5. The increased formaldehyde (HCHO) yield over Ga-modified HZSM-5 was found to play a key role in the increase in aromatic yields. More HCHO was deemed to be generated from the direct dehydrogenation of methanol, and Ga2O3 in Ga-modified HZSM-5 was found to be the active phase. The larger increase in aromatic production over Ga-modified HZSM-5 after reduction‒oxidation treatment was found to be the result of redispersed Ga2O3 with smaller size generating a larger amount of HCHO. This study provides some new insights into the internal driving force for promoting the production of aromatics over Ga-modified HZSM-5.
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Affiliation(s)
- Wu Wen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Tianci Xiao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Beibei Feng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Chaoqun Zhou
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jian Li
- Shanghai Research Institute of Petrochemical Technology SINOPEC, Shanghai, 201208, P. R. China
| | - Hao Ma
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Zhongyue Zhou
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Ying Zhang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Jiuzhong Yang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Zhandong Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Fei Qi
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jun Bao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China
| | - Chengyuan Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China.
| | - Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, Anhui, P. R. China.
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8
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Shang X, Liu G, Su X, Huang Y, Zhang T. Preferential Synthesis of Toluene and Xylene from CO 2 Hydrogenation in the Presence of Benzene through an Enhanced Coupling Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xin Shang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian116023, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Guodong Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian116023, China
| | - Xiong Su
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian116023, China
| | - Yanqiang Huang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian116023, China
| | - Tao Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian116023, China
- University of Chinese Academy of Sciences, Beijing100049, China
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9
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Investigating the Interaction between Methanol and the Heulandite-type Zeolite using First Principle Molecular Dynamic. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2022. [DOI: 10.9767/bcrec.17.3.15169.542-553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The interaction between methanol and the Heulandite-type zeolite has been unveiled to give an atomic scale detail regarding the catalytic activity of this zeolite for methanol conversion. The study was carried out by first principle molecular dynamics to get an insight into the structure and electronic behaviour of methanol inside the zeolite structure at different temperatures. The behaviour of methanol was studied when the location of the proton of Bronsted acid sites was varied to give both possible direct and less interaction with methanol. The results show that methanol interacts with the proton from zeolite to give a cationic species of [CH3OH2]+ both in 300K and 573K conditions. However, when the proton is located at different location far from possible interaction with methanol, the formation of a cationic species is hindered. This study provides an insight into the design of Heulandite type zeolite to give a catalytic activity toward methanol transformation.
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10
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Jin Y, Zong L, Wang X, Wei H. Catalytic Enhancement of Cyclohexene Hydration by Ga-Doped ZSM-5 Zeolites. ACS OMEGA 2022; 7:26289-26297. [PMID: 35936401 PMCID: PMC9352339 DOI: 10.1021/acsomega.2c02031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
Ga-doped ZSM-5 zeolites were directly synthesized by a facile one-step hydrothermal method without organic templates and calcination and then investigated in the cyclohexene hydration reaction. The structure, component, textural properties, and acidity of the as-prepared samples were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence (XRF), Brunauer-Emmett-Teller (BET), ammonia temperature-programmed desorption (NH3-TPD), pyridine-chemisorbed IR (Py-IR), and 71Ga, 27Al, 29Si, and 1H magic-angle spinning (MAS) NMR techniques. The characterization results showed that the introduction of Ga atoms into the ZSM-5 zeolite framework is much easier than Al atoms and beneficial to promote the formation of small-sized crystals. The number of Brønsted acid sites of Ga-doped ZSM-5 samples obviously increased compared with Ga0-ZSM-5. Additionally, the highest cyclohexanol yield (10.1%) was achieved over the Ga3-ZSM-5 sample, while the cyclohexanol yield of the Ga0-ZSM-5 sample was 8.6%. This result indicated that the improved catalytic performance is related to its larger external surface area, smaller particle size, and more Brønsted acid sites derived from Si-OH-Al and Si-OH-Ga of Ga3-ZSM-5. Notably, the green route reduces harmful gas emission and provides a basis for doping other heteroatoms to regulate the catalytic performance of zeolites, especially in industrial production.
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Affiliation(s)
- Yuzhen Jin
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lukuan Zong
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
- Zhejiang
Medicine Co, Ltd., Changhai Biological Branch, Shaoxing 312000, P.R. China
| | - Xiangyu Wang
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Huijuan Wei
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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11
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Yu Y, Xi Z, Zhou B, Jiang B, Liao Z, Yang Y, Wang J, Huang Z, Sun J, Yang Y. Acidity Modification of ZSM-5 for Methane Conversion in Co-feeding Method with MTA Reaction. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-021-1253-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Zhang Y, Liu Y, Li J. In Situ Synthesis of Metal-Containing ZSM-5 and Its Catalytic Performance in Aromatization of Methanol. ACS OMEGA 2022; 7:24241-24248. [PMID: 35874220 PMCID: PMC9301955 DOI: 10.1021/acsomega.2c01442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Metal-containing ZSM-5 zeolites, denoted as M/ZSM-5 (M = Ga, Zn, and La), were prepared by an in situ synthetic method. The structural, textural, and surface acid properties of M/ZSM-5 were characterized by XRD, N2 adsorption-desorption, NH3-TPD, and FT-IR. The catalyst pore size and the distribution of strong acid and weak acid were affected by the introduction of metal. Considering the methanol-to-aromatics model reaction, the catalytic performance of these samples was investigated in a fixed bed reactor under the conditions of 450 °C and a liquid weight hourly space velocity (WHSV) of 5 h-1. The results indicated that the Zn/ZSM-5 molecular sieve was most beneficial to aromatization; the relationship between the change of B/L caused by Zn content and aromatics selectivity was further studied. When the B/L value decreased, the selectivity of aromatics showed an initial increase and then a decrease. The B/L value was optimal, and the aromatics yield was the highest when the Zn loading was 0.35%.
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14
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Zhao X, Shi X, Chen Z, Xu L, Dai C, Zhang Y, Guo X, Yang D, Ma X. Efficient conversion of benzene and syngas to toluene and xylene over ZnO-ZrO2&H-ZSM-5 bifunctional catalysts. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.05.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Fang X, Liu H, Chen Z, Liu Z, Ding X, Ni Y, Zhu W, Liu Z. Highly Enhanced Aromatics Selectivity by Coupling of Chloromethane and Carbon Monoxide over H-ZSM-5. Angew Chem Int Ed Engl 2022; 61:e202114953. [PMID: 35104006 DOI: 10.1002/anie.202114953] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Indexed: 11/09/2022]
Abstract
The transformation of methane into high value-added chemicals such as aromatics provides a more desired approach towards sustainable chemistry but remains a critical challenge due to the low selectivity of aromatics and poor stability. Herein, we first report a coupling reaction of CH3 Cl and CO (CCTA) based on methane conversion, which achieves extremely high aromatics selectivity (82.2 %) with the selectivity of BTX up to ca. 60 % over HZSM-5. The promoting effects have been demonstrated on other zeolites especially 10-membered rings (10 MR) zeolites. Multiple characterizations show that 2,3-dimethyl-2-cyclopentene-1-one (DMCPO) is generated from acetyl groups and olefins. Furthermore, isotopic labeling analysis confirms that CO is inserted into the DMCPO and aromatics rings. A new aromatization mechanism is proposed, including the formation of the above intermediates, which conspicuously weakens the hydrogen transfer reaction, leading to a considerable increase of aromatics selectivity and a dramatic drop in alkanes.
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Affiliation(s)
- Xudong Fang
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongchao Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Zhiyang Chen
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhaopeng Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiangnong Ding
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Youming Ni
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Wenliang Zhu
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
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16
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Liu C, Uslamin EA, Khramenkova E, Sireci E, Ouwehand LTLJ, Ganapathy S, Kapteijn F, Pidko EA. High Stability of Methanol to Aromatic Conversion over Bimetallic Ca,Ga-Modified ZSM-5. ACS Catal 2022; 12:3189-3200. [PMID: 35280436 PMCID: PMC8902757 DOI: 10.1021/acscatal.1c05481] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/10/2022] [Indexed: 11/29/2022]
Abstract
![]()
The production of
valuable aromatics and the rapid catalyst deactivation
due to coking are intimately related in the zeolite-catalyzed aromatization
reactions. Here, we demonstrate that these two processes can be decoupled
by promoting the Ga/HZSM-5 aromatization catalyst with Ca. The resulting
bimetallic catalysts combine high selectivity to light aromatics with
extended catalyst lifetime in the methanol-to-aromatics process. Evaluation
of the catalytic performance combined with detailed catalyst characterization
suggests that the added Ca interacts with the Ga-LAS, with a strong
effect on the aromatization processes. A genetic algorithm approach
complemented by ab initio thermodynamic analysis is used to elucidate
the possible structures of bimetallic extraframework species formed
under reaction conditions. The promotion effect of minute amounts
of Ca is attributed to the stabilization of the intra-zeolite extraframework
gallium oxide clusters with moderated dehydrogenation activity.
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Affiliation(s)
- Chuncheng Liu
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Evgeny A. Uslamin
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Elena Khramenkova
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Enrico Sireci
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Lucas T. L. J. Ouwehand
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Swapna Ganapathy
- Radiation Science and Technology Department, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands
| | - Freek Kapteijn
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Evgeny A. Pidko
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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17
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Wang K, Ge H, Qin Y. Hollow zeolites‐confined isolated (ZnOH)+ enable high selectivity and stability for methanol to aromatics. ChemCatChem 2022. [DOI: 10.1002/cctc.202200022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kai Wang
- Anyang Institute of Technology college of chemical and environment engineering CHINA
| | - Huibin Ge
- Northwestern Polytechnical University school of life science 127 Youyi West RoadBeilin District 710072 Xi’an CHINA
| | - Yong Qin
- Institute of Coal Chemistry CAS: Chinese Academy of Sciences Institute of Coal Chemistry state key laboratory of coal conversion CHINA
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18
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Fang X, Liu H, Chen Z, Liu Z, Ding X, Ni Y, Zhu W, Liu Z. Highly Enhanced Aromatics Selectivity by Coupling of Chloromethane and Carbon Monoxide over H‐ZSM‐5. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xudong Fang
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hongchao Liu
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Zhiyang Chen
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhaopeng Liu
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiangnong Ding
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Youming Ni
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Wenliang Zhu
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
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19
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Yang Z, Cao JP, Zhu C, Liu TL, Feng XB, Zhao XY, Bai HC. In situ reforming of lignite pyrolysis volatiles for enriching light aromatics over Ga substituted HZSM-5. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117235] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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20
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Mechanistic Insight into Ethanol Dehydration over SAPO-34 Zeolite by Solid-state NMR Spectroscopy. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-1450-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Tian H, Shi D, Yu L, Zha F, Tang X, Chang Y, Guo X. Transformation of methanol to trimethylbenzene catalyzed by cadmium modified HZSM-5 zeolites. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-021-02144-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Kella T, Shee D. Production of aromatics from butanol over Ga-promoted HZSM5 catalysts: Tuning of benzene-toluene-xylene and ethylbenzene (BTEX) selectivity. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00531f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present investigation demonstrates the conversion of n-butanol to aromatics (BTA) including building block aromatics in one step over Ga modified HZSM5 catalysts in a fixed bed reactor under varying...
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23
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Enhancing Methane Conversion by Modification of Zn States in Co-Reaction of MTA. Catalysts 2021. [DOI: 10.3390/catal11121540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Limited by harsh reaction conditions, the activation and utilization of methane were regarded as holy grail reaction. Co-reaction with methanol, successfully realizing mild conversion below 450 °C, provides practical strategies for methane conversion on metal-loaded ZSM-5 zeolites, especially for highly efficient Zn loaded ones. However, Zn species, regarded as active acid sites on the zeolite, have not been sufficiently studied. In this paper, Zn-loaded ZSM-5 zeolite was prepared, and Zn was modified by capacity, loading strategy, and treating atmosphere. Apparent methane conversion achieves 15.3% for 1.0Zn/Z-H2 (16.8% as calculated net conversion) with a significantly reduced loading of 1.0 wt.% against deactivation, which is among the best within related zeolite materials. Besides, compared to the MTA reaction, the addition of methane promotes the high-valued aromatic production from 49.4% to 54.8%, and inhibits the C10+ production from 7.8% to 3.6%. Notably, Zn2+ is found to be another active site different from the reported ZnOH+. Medium strong acid sites are proved to be beneficial for methane activation. This work provides suggestions for the modification of the Zn active site, in order to prepare highly efficient catalysts for methane activation and BTX production in co-reaction with methanol.
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24
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Ni Z, Li Y, Zhang Y, Wang Y, Cui G, Jiang G, Zhao Z, Xu C. Effect of redox atmosphere treatment on bifunctional Ga/ZSM-5 for efficient catalytic cracking of n-butane. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Zn-P Co-Modified Hierarchical ZSM-5 Zeolites Directly Synthesized via Dry Gel Conversion for Enhanced Methanol to Aromatics Reaction. Catalysts 2021. [DOI: 10.3390/catal11111388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A unique method to prepare Zn-P co-modified hierarchical ZSM-5 zeolites was developed. The ZSM-5 zeolite was directly synthesized by a dry gel conversion without adding any templates or seeds. Afterwards, the hierarchical structure was endowed to the ZSM-5 zeolite by the sequential desilication-dealumination. Zn and P species were then introduced into the hierarchical ZSM-5 zeolites by the impregnation method and their activity in methanol to aromatics process was investigated. It was found that the Zn-P co-modified hierarchical ZSM-5 zeolites possessed more Zn-related Lewis acid sites, and the ratio of Zn(OH)+/ZnO was increased. The catalytic evaluation results revealed that the benzene, toluene and xylene (BTX) and aromatics selectivity were significantly improved from 20.59% and 29.41% of pristine ZSM-5 zeolite to 28.12% and 41.88% of Zn-P co-modified hierarchical counterpart (1.5Zn0.3P/HZSM-5), respectively. Owing to the introduced highly stable Zn-P co-modified hierarchical structures, the lifetime (conversion not less than 99%) of ZSM-5 zeolite during methanol to aromatics reaction was increased from 6 h to 18 h.
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26
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Li T, Shoinkhorova T, Gascon J, Ruiz-Martínez J. Aromatics Production via Methanol-Mediated Transformation Routes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01422] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Teng Li
- King Abdullah University of Science and Technology, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Tuiana Shoinkhorova
- King Abdullah University of Science and Technology, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Jorge Gascon
- King Abdullah University of Science and Technology, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Javier Ruiz-Martínez
- King Abdullah University of Science and Technology, KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
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27
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Hui Li, Dong P, Ji D, Zhao X, Li C, Li G. Methanol to Aromatic Reaction over HZSM-5: Co-Effect Desilication and SiO2 Deposition. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421030058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Zhang D, Liu H, Ling L, Zhang H, Zhang R, Liu P, Wang B. The effect of introducing Ga on the ZSM-5-catalyzed methanol to aromatics reaction: taking methylcyclopentane to benzene as an example. Phys Chem Chem Phys 2021; 23:10988-11003. [PMID: 33929467 DOI: 10.1039/d0cp05778a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Naphthenes are key intermediates in the formation of aromatic compounds during the methanol to aromatics (MTA) reaction, and the dehydrogenation process is more important than the hydrogen transfer process. Theoretical studies were performed to investigate the methylcyclopentane, which represents a naphthene, to benzene MTA process catalyzed by ZSM-5 before and after introducing Ga, showing that Ga-ZSM-5 was more favorable for carrying out the reaction than two H-type ZSM-5 (H-Z1 and H-Z2) models. H-Z1 and H-Z2 are favorable for the transfer of H during ring expansion reactions and the reformation of Brønsted acids, but the dehydrogenation reactions involving H-Z1 and H-Z2 require high free-energy barriers to be overcome. Although introducing Ga to ZSM-5 is not conducive to the transfer of H after dehydrogenation, it can reduce the extremely high dehydrogenation free-energy barrier compared with H-Z1 and H-Z2; this is mainly because Ga at dehydrogenation active centers, [GaH]2+, can accept electrons and donate them to the H atoms of [GaH]2+, giving H negative charge and making it easy to combine with positive B-acid H atoms that come from methylcyclopentane, cyclohexene, and cyclohexadiene to produce H2. Also, analysis of the transition state structures of all DH processes shows that Ga-ZSM-5 is more favorable for promoting the combination of H to produce H2 than H-Z1 and H-Z2.
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Affiliation(s)
- Dandan Zhang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, No. 79 Yingze West Street, Taiyuan 030024, Shanxi, P. R. China.
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29
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Wang Y, Gao W, Wang K, Gao X, Zhang B, Zhao H, Ma Q, Zhang P, Yang G, Wu M, Tsubaki N. Boosting the synthesis of value-added aromatics directly from syngas via a Cr 2O 3 and Ga doped zeolite capsule catalyst. Chem Sci 2021; 12:7786-7792. [PMID: 34168832 PMCID: PMC8188606 DOI: 10.1039/d1sc01859k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/25/2021] [Indexed: 12/04/2022] Open
Abstract
Even though the transformation of syngas into aromatics has been realized via a methanol-mediated tandem process, the low product yield is still the bottleneck, limiting the industrial application of this technology. Herein, a tailor-made zeolite capsule catalyst with Ga doping and SiO2 coating was combined with the methanol synthesis catalyst Cr2O3 to boost the synthesis of value-added aromatics, especially para-xylene, from syngas. Multiple characterization studies, control experiments, and density functional theory (DFT) calculation results clarified that Ga doped zeolites with strong CO adsorption capability facilitated the transformation of the reaction intermediate methanol by optimizing the first C-C coupling step under a high-pressure CO atmosphere, thereby driving the reaction forward for aromatics synthesis. This work not only reveals the synergistic catalytic network in the tandem process but also sheds new light on principles for the rational design of a catalyst in terms of oriented conversion of syngas.
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Affiliation(s)
- Yang Wang
- College of New Energy, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Weizhe Gao
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Kangzhou Wang
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Xinhua Gao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Baizhang Zhang
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Heng Zhao
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Qingxiang Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry & Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Peipei Zhang
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Guohui Yang
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
| | - Mingbo Wu
- College of New Energy, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
| | - Noritatsu Tsubaki
- Department of Applied Chemistry, Graduate School of Engineering, University of Toyama Gofuku 3190 Toyama 930-8555 Japan
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30
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Feng Z, Liu X, Wang Y, Meng C. Recent Advances on Gallium-Modified ZSM-5 for Conversion of Light Hydrocarbons. Molecules 2021; 26:molecules26082234. [PMID: 33924390 PMCID: PMC8069487 DOI: 10.3390/molecules26082234] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/05/2021] [Accepted: 04/08/2021] [Indexed: 11/16/2022] Open
Abstract
Light olefins are key components of modern chemical industry and are feedstocks for the production of many commodity chemicals widely used in our daily life. It would be of great economic significance to convert light alkanes, produced during the refining of crude oil or extracted during the processing of natural gas selectively to value-added products, such as light alkenes, aromatic hydrocarbons, etc., through catalytic dehydrogenation. Among various catalysts developed, Ga-modified ZSM-5-based catalysts exhibit superior catalytic performance and stability in dehydrogenation of light alkanes. In this mini review, we summarize the progress on synthesis and application of Ga-modified ZSM-5 as catalysts in dehydrogenation of light alkanes to olefins, and the dehydroaromatization to aromatics in the past two decades, as well as the discussions on in-situ formation and evolution of reactive Ga species as catalytic centers and the reaction mechanisms.
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Affiliation(s)
| | - Xin Liu
- Correspondence: (X.L.); (C.M.)
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31
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Lawson S, Farsad A, Rezaei F, Ludlow D, Rownaghi AA. Direct Ink Writing of Metal Oxide/H-ZSM-5 Catalysts for n-Hexane Cracking: A New Method of Additive Manufacturing with High Metal Oxide Loading. ACS APPLIED MATERIALS & INTERFACES 2021; 13:781-794. [PMID: 33370112 DOI: 10.1021/acsami.0c20752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Previously, 3D printing of porous materials and metal oxides was limited to low loading metal loadings, as increasing the nitrate salt concentrations, which are used to generate the oxide component, gave rise to poor rheological properties beyond 10 wt %. In this study, we addressed this problem by directly printing insoluble oxides alongside H-ZSM-5 zeolite, which allowed for increased oxide loadings. Various metal oxides such as V2O5, ZrO2, Cr2O3, and Ga2O3 were doped onto H-ZSM-5 through the additive manufacturing method. Characterization and correlation between the X-ray diffraction, NH3-temperature-programmed desorption, O2-temperature programmed oxidation, temperature-programmed reduction, scanning electron microscopy-energy dispersive spectroscopy, and in situ CO2 DRIFTS experiments revealed that directly 3D printing metal oxides/H-ZSM-5 inks leads to significant modification in the surface properties and oxide bulk dispersion, thereby enhancing the composites' reducibility and giving rise to widely differing product distributions in n-hexane cracking reaction. The obtained metal oxide/zeolite structured materials were used as bifunctional structured catalysts for the selective formation of light olefins from hexane at 550-600 °C and GHSV = 9000 mL/gcatalst·h in a packed-bed reactor. Among the various compositions of metal oxides/H-ZSM-5 examined (i.e., 15 wt % Ga2O3, 15 wt % ZrO2, 15 wt % V2O5, 15 wt % Cr2O3, or 5 wt % Cr/10 wt % ZrO2/10 wt % V2O5/10 wt % Ga2O3 balanced with H-ZSM-5), the 15 wt % Cr/ZSM-5 monolith displayed the best n-hexane cracking performance, as it achieved 80-85% conversion of hexane with a 40% selectivity toward propylene, 30% selectivity toward ethylene, and 10% selectivity toward butene at 550 °C. The sample also showed zero benzene/toluene/xylene selectivity and no deactivation after 6 h. This study represents a proof-of-concept for tailoring customizable heterogeneous structured catalysts by directly 3D printing high loading of metal oxides/porous zeolite and is a breakthrough in material science.
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Affiliation(s)
- Shane Lawson
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409-1230, United States
| | - Alireza Farsad
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409-1230, United States
| | - Fateme Rezaei
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409-1230, United States
| | - Douglas Ludlow
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409-1230, United States
| | - Ali A Rownaghi
- Department of Chemical & Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409-1230, United States
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32
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Du YJ, Hu WD, Wang CM, Zhou J, Yang G, Wang YD, Yang WM. First-principles microkinetic analysis of Lewis acid sites in Zn-ZSM-5 for alkane dehydrogenation and its implication to methanol-to-aromatics conversion. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02318c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stabilities and dehydrogenation activities of butane and cyclohexane on four different Zn sites in ZSM-5 zeolite were theoretically revealed. ZnOH+ was identified as the most active site at low temperature and the activity increases with the sequence of dehydrogenation.
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Affiliation(s)
- Yu-Jue Du
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Wen-De Hu
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Chuan-Ming Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Jian Zhou
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Guang Yang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Yang-Dong Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Wei-Min Yang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis
- Sinopec Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
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33
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Liu C, Su J, Liu S, Zhou H, Yuan X, Ye Y, Wang Y, Jiao W, Zhang L, Lu Y, Wang Y, He H, Xie Z. Insights into the Key Factor of Zeolite Morphology on the Selective Conversion of Syngas to Light Aromatics over a Cr 2O 3/ZSM-5 Catalyst. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03658] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chang Liu
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P. R. China
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Junjie Su
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Su Liu
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Haibo Zhou
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Xiaohong Yuan
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Yingchun Ye
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Yu Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Wenqian Jiao
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Lin Zhang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Yiqing Lu
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Yangdong Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, P. R. China
| | - Heyong He
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, P. R. China
| | - Zaiku Xie
- China Petrochemical Corporation (SINOPEC Group), Beijing 100728, P. R. China
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34
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Oda A, Tanaka T, Sawabe K, Satsuma A. How to Constrain Metal-Oxyl Bonds on a Solid Surface? Lesson from Isovalent Zn(II)-Oxyl and Ga(III)-Oxyl Bonds Isolated in Zeolite Matrix. J Phys Chem Lett 2020; 11:9426-9431. [PMID: 33107740 DOI: 10.1021/acs.jpclett.0c02980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Isolation of the atomic O radical anion bound to a metal ion (metal-oxyl) on solid surfaces is highly desirable for an understanding of how we should design the surface structure for using oxyl as the reactive site. Owing to the analytical difficulty of oxyl, however, even identification of oxyl remains scarce. Herein, we report isovalent ZnII-oxyl and GaIII-oxyl bonds isolated in the zeolite matrix. Close similarities in reactivity, spectroscopic property, and bonding nature were observed between them, but their site requirements were entirely different; the former is generated at the monovalent ion-exchangeable site, whereas the latter at the divalent ion-exchangeable site. This study strongly suggests that tuning the polarization of the metal-oxygen bond using the charge-controlled lattice oxygens is a useful way to constrain surface metal-oxyl bonds.
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Affiliation(s)
- Akira Oda
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
| | - Tomoyasu Tanaka
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Kyoichi Sawabe
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Atsushi Satsuma
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
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35
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Zhou Y, Thirumalai H, Smith SK, Whitmire KH, Liu J, Frenkel AI, Grabow LC, Rimer JD. Ethylene Dehydroaromatization over Ga‐ZSM‐5 Catalysts: Nature and Role of Gallium Speciation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yunwen Zhou
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
| | - Hari Thirumalai
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
| | - Scott K. Smith
- Department of Chemistry University of Houston Houston TX 77204 USA
| | | | - Jing Liu
- Physics Department Manhattan College Riverdale NY 10471 USA
| | - Anatoly I. Frenkel
- Department of Materials Science and Chemical Engineering Stony Brook University Stony Brook NY 11794 USA
- Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA
| | - Lars C. Grabow
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
- Department of Chemistry University of Houston Houston TX 77204 USA
- Texas Center for Superconductivity at the University of Houston (TcSUH) University of Houston Houston TX 77204 USA
| | - Jeffrey D. Rimer
- Department of Chemical and Biomolecular Engineering University of Houston Houston TX 77204 USA
- Department of Chemistry University of Houston Houston TX 77204 USA
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36
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Zhou Y, Thirumalai H, Smith SK, Whitmire KH, Liu J, Frenkel AI, Grabow LC, Rimer JD. Ethylene Dehydroaromatization over Ga-ZSM-5 Catalysts: Nature and Role of Gallium Speciation. Angew Chem Int Ed Engl 2020; 59:19592-19601. [PMID: 32748507 DOI: 10.1002/anie.202007147] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/01/2020] [Indexed: 11/06/2022]
Abstract
Bifunctional catalysis in zeolites possessing both Brønsted and Lewis acid sites offers unique opportunities to tailor shape selectivity and enhance catalyst performance. Here, we examine the impact of framework and extra-framework gallium species on enriched aromatics production in zeolite ZSM-5. We compare three distinct methods of preparing Ga-ZSM-5 and reveal direct (single step) synthesis leads to optimal catalysts compared to post-synthesis methods. Using a combination of state-of-the-art characterization, catalyst testing, and density functional theory calculations, we show that Ga Lewis acid sites strongly favor aromatization. Our findings also suggest Ga(framework)-Ga(extra-framework) pairings, which can only be achieved in materials prepared by direct synthesis, are the most energetically favorable sites for reaction pathways leading to aromatics. Calculated acid site exchange energies between extra-framework Ga at framework sites comprised of either Al or Ga reveal a site-specific preference for stabilizing Lewis acids, which is qualitatively consistent with experimental measurements. These findings indicate the possibility of tailoring Lewis acid siting by the placement of Ga heteroatoms at distinct tetrahedral sites in the zeolite framework, which can have a marked impact on catalyst performance relative to conventional H-ZSM-5.
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Affiliation(s)
- Yunwen Zhou
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Hari Thirumalai
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Scott K Smith
- Department of Chemistry, University of Houston, Houston, TX, 77204, USA
| | | | - Jing Liu
- Physics Department, Manhattan College, Riverdale, NY, 10471, USA
| | - Anatoly I Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA.,Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Lars C Grabow
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.,Department of Chemistry, University of Houston, Houston, TX, 77204, USA.,Texas Center for Superconductivity at the, University of Houston (TcSUH), University of Houston, Houston, TX, 77204, USA
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.,Department of Chemistry, University of Houston, Houston, TX, 77204, USA
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37
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Zhang J, Yang J, Cheng L, Wang Y, Feng G. Adsorption of acetylene on Sn-doped Ni(111) surfaces: a density functional study. J Mol Model 2020; 26:310. [PMID: 33084983 DOI: 10.1007/s00894-020-04568-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/08/2020] [Indexed: 12/26/2022]
Abstract
First-principle density functional theory calculations have been performed to investigate the adsorption of C2H2 on Ni(111) and Sn@Ni(111) at different coverages. At low coverage, the C2H2 molecule is strongly adsorbed on Ni(111) and the dissociation of the H atom is not favorable. Furthermore, the more the H atom dissociated, the more unstable the system is. However, the dissociation structure of C2H+H has the largest adsorption energy on Sn@Ni(111), indicating that the dissociation structure is more stable than molecular adsorbed C2H2. At moderate coverage, there is some repulsive interaction between two C2H2 molecules, inducing the decrease in adsorption energy. On Ni(111), the two C2H2 tend to adsorb separately, however, the dimer C4H4 has the largest adsorption energy on Sn@Ni(111). At high coverage, the trimer derivative benzene has the largest adsorption energy on both Ni(111) and Sn@Ni(111) surfaces. The adsorption energies of the formed benzene are very high on the two systems, even larger than those of three individual adsorbed C2H2.
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Affiliation(s)
- Jing Zhang
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan, 030021, Shanxi, People's Republic of China.
| | - Junyu Yang
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan, 030021, Shanxi, People's Republic of China
| | - Lihong Cheng
- Department of Material Science and Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330038, People's Republic of China.
| | - Yan Wang
- School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan, 030021, Shanxi, People's Republic of China
| | - Gang Feng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, College of Chemistry, Nanchang University, Nanchang, 330031, Jiangxi, People's Republic of China.
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38
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Zhao X, Xu J, Chu Y, Qi G, Wang Q, Gao W, Li S, Feng N, Deng F. Multiple Methane Activation Pathways on Ga‐modified ZSM‐5 Zeolites Revealed by Solid‐State NMR Spectroscopy. ChemCatChem 2020. [DOI: 10.1002/cctc.202000650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xingling Zhao
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jun Xu
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
- Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Yueying Chu
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Guodong Qi
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Qiang Wang
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Wei Gao
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Shenhui Li
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Ningdong Feng
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
| | - Feng Deng
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 P. R. China
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39
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Chang CJ, Chen CH, Lee JF, Sooknoi T, Lin YC. Ga-Supported MFI Zeolites Synthesized Using Carbon Nanotubes Containing Gallium Oxide Nanoparticles on Exterior Walls and in Interior Channels as Hard Templates for Methanol Aromatization. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ching-Jung Chang
- Department of Chemical Engineering, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
| | - Chin-Han Chen
- Department of Chemical Engineering, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30076, Taiwan
| | - Tawan Sooknoi
- Department of Chemistry/Catalytic Chemistry Research Unit, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Yu-Chuan Lin
- Department of Chemical Engineering, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
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40
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Hu M, Wang C, Gao X, Chu Y, Qi G, Wang Q, Xu G, Xu J, Deng F. Establishing a Link Between the Dual Cycles in Methanol-to-Olefins Conversion on H-ZSM-5: Aromatization of Cycloalkenes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00838] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min Hu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Xiuzhi Gao
- State Key Laboratory of Catalytic Materials and Research Engineering (RIPP, SINOPEC), Beijing 100083, China
| | - Yueying Chu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Guodong Qi
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Guangtong Xu
- State Key Laboratory of Catalytic Materials and Research Engineering (RIPP, SINOPEC), Beijing 100083, China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
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41
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Zhao X, Xu J, Deng F. Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism. Front Chem Sci Eng 2020. [DOI: 10.1007/s11705-019-1885-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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42
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Wang C, Xu J, Deng F. Mechanism of Methanol‐to‐hydrocarbon Reaction over Zeolites: A solid‐state NMR Perspective. ChemCatChem 2020. [DOI: 10.1002/cctc.201901937] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chao Wang
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of Sciences Wuhan 430071 P. R. China
| | - Jun Xu
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of Sciences Wuhan 430071 P. R. China
| | - Feng Deng
- National Center for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of Sciences Wuhan 430071 P. R. China
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43
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Xi Z, Zhou B, Yu Y, Jiang B, Liao Z, Wang J, Huang Z, Yang Y, Sun J, Yang Y. Enhancing low-temperature methane conversion on Zn/ZSM-5 in the presence of methanol by regulating the methanol-to-aromatics reaction pathway. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00449a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The co-reaction method provides an efficient strategy for methane conversion under mild conditions, which is of urgent importance for direct valorization of natural gas to liquid hydrocarbons.
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44
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Zhu X, Zhang J, Cheng M, Wang G, Yu M, Li C. Methanol Aromatization over Mg–P-Modified [Zn,Al]ZSM-5 Zeolites for Efficient Coproduction of para-Xylene and Light Olefins. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03743] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaolin Zhu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China
| | - Jiaoyu Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China
| | - Ming Cheng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China
| | - Guowei Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China
| | - Mingxuan Yu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China
| | - Chunyi Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China
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45
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Xu J, Wang Q, Deng F. Metal Active Sites and Their Catalytic Functions in Zeolites: Insights from Solid-State NMR Spectroscopy. Acc Chem Res 2019; 52:2179-2189. [PMID: 31063347 DOI: 10.1021/acs.accounts.9b00125] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Zeolites are important heterogeneous catalysts widely used in the modern chemical and petrochemical industries. Metal-containing zeolites show distinct performance in the catalytic processes such as fluid catalytic cracking, activation and conversion of light alkanes, methanol-to-aromatics conversion, biomass transformation, and so on. The metal speciation, distribution, and interactions on zeolites have enormous impact on their property and catalytic performance. Significant efforts have been devoted to the synthesis of more active and selective zeolites by engineering the metal active sites. However, the nature of metal species and their role in the reactions are still poorly understood, which makes it difficult to establish the structure-activity relationship toward the rational design and application of zeolites. For example, synergic active sites are often present on the metal-containing zeolites, but their structure, property and quantification still remain to be resolved. Solid-state NMR is a powerful tool for the characterization of heterogeneous catalysts and catalytic reactions by providing information about both molecular structure and dynamics. The heterogeneity and low concentration of the metal sites on zeolites usually leads to a great challenge for their characterization. In this Account, we will describe our effort to study the metal active sites, host-guest interactions, and reaction intermediates by using solid-state NMR spectroscopy, with the aim to highlight recent advances in solid-state NMR techniques for probing the structure and property of metal-containing zeolites as well as the relevant reaction mechanisms. Using sensitivity-enhanced NMR methods such as 67Zn, 71Ga, and 119Sn, NMR enables the identification of metal speciation on zeolites. The synergic active sites constituted by metal species (as Lewis acid sites) and acidic protons (as Brønsted acid sites) on zeolites that amount to only a small fraction of the whole system can be directly probed and quantified with advanced 1H-67Zn or 1H-71Ga double-resonance solid-state NMR. We developed NMR methods to study the host-guest interactions in zeolites by observing the spatial interaction/proximity between aluminum sites (associated with Brønsted or Lewis acid sites) in zeolite host and carbon atoms in organic molecule guest formed during catalytic reaction, which leads to the formation of supramolecular reaction centers in the methanol-to-olefins reaction. The mechanisms underlying the catalytic reactions on metal-modified zeolite are revealed by the identification of key reaction intermediates with in situ 13C MAS NMR spectroscopy. Our discussion based on the representative examples shows how the metal species serving as active sites significantly affect the property and activity of zeolites and related reaction pathways. The structural information obtained by the state-of-the-art solid-state NMR techniques provides new insights into the structure-activity relationship of zeolites in heterogeneous catalysis, which should be beneficial for rational design of highly efficient zeolite catalysts.
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Affiliation(s)
- Jun Xu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
| | - Qiang Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
| | - Feng Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
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46
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Zhang J, Wang L, Wu Z, Wang H, Wang C, Han S, Xiao FS. Solvent-Free Synthesis of Core–Shell Zn/ZSM-5@Silicalite-1 Catalyst for Selective Conversion of Methanol to BTX Aromatics. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03357] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Zhang
- Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Liang Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhiyi Wu
- Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hai Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chengtao Wang
- Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Shichao Han
- Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Feng-Shou Xiao
- Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
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47
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Wang Y, Gao W, Kazumi S, Li H, Yang G, Tsubaki N. Direct and Oriented Conversion of CO
2
into Value‐Added Aromatics. Chemistry 2019; 25:5149-5153. [DOI: 10.1002/chem.201806165] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/13/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Yang Wang
- Department of Applied Chemistry, Graduate School of EngineeringUniversity of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Weizhe Gao
- Department of Applied Chemistry, Graduate School of EngineeringUniversity of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Shun Kazumi
- Department of Applied Chemistry, Graduate School of EngineeringUniversity of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Hangjie Li
- Department of Applied Chemistry, Graduate School of EngineeringUniversity of Toyama Gofuku 3190 Toyama 930-8555 Japan
| | - Guohui Yang
- Department of Applied Chemistry, Graduate School of EngineeringUniversity of Toyama Gofuku 3190 Toyama 930-8555 Japan
- State Key Laboratory of Coal Conversion, Institute of Coal ChemistryChinese Academy of Sciences Taiyuan 030001 P.R. China
| | - Noritatsu Tsubaki
- Department of Applied Chemistry, Graduate School of EngineeringUniversity of Toyama Gofuku 3190 Toyama 930-8555 Japan
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48
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Zhang J, Huang Z, Xu L, Zhang X, Zhang X, Yuan Y, Xu L. Verifying the olefin formation mechanism of the methanol-to-hydrocarbons reaction over H-ZSM-48. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02621a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The product distributions and catalytic cycle of the methanol-to-hydrocarbons reaction over H-ZSM-48 zeolite can be altered by changing the reaction temperature.
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Affiliation(s)
- Jie Zhang
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Zhihua Huang
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Lanjian Xu
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Xiaomin Zhang
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Xinzhi Zhang
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yangyang Yuan
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Lei Xu
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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