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Qi Y, Yang H, Li C, Li H. Enhanced Adsorption of Trace Ethylene on Ag/NZ5 Modified with Ammonia: Hierarchical Structure and Metal Dispersion Effects. Molecules 2024; 29:981. [PMID: 38474493 DOI: 10.3390/molecules29050981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Trace ethylene poses a significant challenge during the storage and transportation of agricultural products, causing over-ripening, reducing shelf life, and leading to food waste. Zeolite-supported silver adsorbents show promise for efficiently removing trace ethylene. Herein, hierarchical Ag/NZ5(X) adsorbents were prepared via different ammonia modifications, which featured enhanced ethylene adsorption ability. Ag/NZ5(2.5) exhibited the largest capacity and achieved near-complete removal at room temperature with prolonged efficacy. Characterization results indicated that the ammonia modification led to the formation of a hierarchical structure in the zeolite framework, reducing diffusion resistance and increasing the accessibility of the active sites. Additionally, desilication effects increased the defectiveness, generating a stronger metal-support interaction and resulting in a higher metal dispersion rate. These findings provide valuable insights into the development of efficient adsorbents for removing trace ethylene, thereby reducing food waste and extending the shelf life of agricultural products.
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Affiliation(s)
- Ying Qi
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Huaming Yang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Chunli Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Hao Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
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2
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Yue X, Wang S, Wang S, Ding W. Enhancements on volatile organic compounds (VOCs) adsorption and desorption performance of ZSM-5 by fabricating hierarchical MCM-41. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100907-100919. [PMID: 37644267 DOI: 10.1007/s11356-023-29483-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/20/2023] [Indexed: 08/31/2023]
Abstract
ZSM-5 zeolite has been considered a promising adsorbent for capturing VOCs. However, its hydrophilicity and narrow micropore structure limit their practical application especially under humid atmospheres. In this study, the pure silica mesoporous molecular sieve MCM-41 was assembled on ZSM-5 zeolite with different SiO2/Al2O3 ratios (SARs) via a surfactant-mediated recrystallization method. Then, its adsorption-desorption behaviors were investigated using n-hexane, toluene, and ethyl acetate as VOC model molecules. The results showed that the hydrophobicity of ZSM-5/MCM-41 composites and their VOC diffusion behaviors were significantly improved. Furthermore, the SARs of the ZSM-5 precursors had a remarkable influence on the adsorption performance of ZSM-5/MCM-41 composites. ZSM-5/MCM-41(130) was the optimum option, and its dynamic adsorption capacity for ethyl acetate (111.30 mg·g-1) was higher than that of the corresponding ZSM-5 zeolites even under statured humidity. Meanwhile, the ratios of dynamic adsorption capacities at humid and dry atmospheres (qs,wet/qs,dry) of ZSM-5/MCM-41(130) for n-hexane, toluene, and ethyl acetate were 84.89%, 61.46%, and 73.81% respectively. The results will provide guidelines for the preparation of hydrophobic adsorbents.
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Affiliation(s)
- Xu Yue
- College of Materials Science and Engineering, Dalian Jiaotong University, Dalian, 116028, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Sheng Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Shudong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Wanyu Ding
- College of Materials Science and Engineering, Dalian Jiaotong University, Dalian, 116028, China
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3
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Wu G, Hu Y, Bao Q, Zhang J, Ge J. Improved Catalytic Performances of the NaOH-Treated ZSM-22 Zeolite in the 1-Butene Skeletal Isomerization Reaction: Effect of External Acid Sites. ACS OMEGA 2023; 8:14349-14364. [PMID: 37125107 PMCID: PMC10134461 DOI: 10.1021/acsomega.2c05478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
In this paper, a series of alkaline-treated ZSM-22 zeolite samples were prepared by treating the parent ZSM-22 zeolite using NaOH aqueous solution with different concentrations. By investigating the effects of alkaline treatment on the parent ZSM-22 zeolite, we discovered that the alkaline treatment contributed to the reduction of Brønsted acid sites due to the coverage of extra-framework Al on its external surface. In addition, it was found that the alkaline-treated samples were favorable to the improvement of the isobutene yield and selectivity, while these features appeared to be low for the subsequent acid-washed counterparts in the skeletal isomerization reaction of 1-butene. These results indicate that the catalytic performance of ZSM-22 zeolite is related to reduced amounts of Brønsted acid sites in it. To further reveal the reasons for the promoted catalytic performances of the alkaline-treated ZSM-22 series zeolites, we studied the properties of coke deposited on the two series of samples using Raman spectroscopy and thermogravimetric analysis and mass spectrometry (TG/MS-TPO). It was shown that the carbon deposited on the alkaline-treated series samples was mainly distributed at the outer surface, while the coke was distributed to a relatively lesser extent at the exterior surface for the acid-washed series samples. Moreover, by partially passivating outer acid sites of the parent zeolite, the selected alkaline-treated zeolite, and acid-washed zeolite, their isobutene selectivities were all improved with the decrease in outer acid sites. These phenomena confirmed that the improved catalytic performances of the alkaline-treated samples are related to their decreased external Brønsted acid site density, which further demonstrated that the high isobutene yield and selectivity in the skeletal isomerization reaction of 1-butene is realized via the monomolecular reaction pathway of 1-butene.
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Wang YL, Zhang XC, Zhan GG, Wang MM, Li WQ, Cao JP. Comparing the effects of hollow structure and mesoporous structure of ZSM-5 zeolites on catalytic performances in methanol aromatization. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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5
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Sub-micron sized hierarchical porous ZSM-5 particles with controllable mesoporous structures by changing the alkalinity in the synthesis using NaOH. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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6
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Hierarchical Zeolite Synthesis by Alkaline Treatment: Advantages and Applications. Catalysts 2023. [DOI: 10.3390/catal13020316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Zeolites are of great interest to the scientific and industrial communities due to their interesting catalytic properties, such as high specific area, shape selectivity, and thermal and hydrothermal stability. For this reason, zeolites have been intensively studied and applied in several reactions of great industrial interest. However, the size of zeolite micropores may hinder the diffusion of bulky molecules in the pore system, limiting the use of zeolites in some reactions/applications that use bulky molecules. One way to address this limitation is to generate secondary porosity (in the range of supermicropores, mesopores and/or macropores) in such a way that it connects with the existing micropores, creating a hierarchical pore system. There are different hierarchical approaches; however, most are not economically viable and are complicated/time-consuming. Alkaline treatment has been highlighted in recent years due to its excellent results, simplicity, speed and low cost. In this review, we highlight the importance of alkaline treatment in the generation of secondary porosity and the parameters that influence alkaline treatment in different zeolitic structures. The properties and catalytic performance of hierarchical zeolites prepared by alkaline treatment are extensively discussed. It is expected that this approach will be useful for understanding how alkaline treatment acts on different hierarchical structures and will thus open doors to achieve other hierarchical zeolites by this method.
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7
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Han S, Linares N, Terlier T, Hoke JB, García Martínez J, Li Y, Rimer JD. Cooperative Surface Passivation and Hierarchical Structuring of Zeolite Beta Catalysts. Angew Chem Int Ed Engl 2022; 61:e202210434. [DOI: 10.1002/anie.202210434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Sungmin Han
- Department of Chemical and Biolmolecular Engineering University of Houston Houston TX 77204 USA
| | - Noemi Linares
- Molecular Nanotechnology Lab Department of Inorganic Chemistry University of Alicante 03690 Alicante Spain
| | - Tanguy Terlier
- Shared Equipment Authority SIMS laboratory Rice University Houston TX 77005 USA
| | | | - Javier García Martínez
- Molecular Nanotechnology Lab Department of Inorganic Chemistry University of Alicante 03690 Alicante Spain
| | - Yuejin Li
- BASF Corporation Iselin NJ 08830 USA
| | - Jeffrey D. Rimer
- Department of Chemical and Biolmolecular Engineering University of Houston Houston TX 77204 USA
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8
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Tomita J, Elangovan SP, Itabashi K, Chokkalingam A, Fujinuma H, Hao Z, Kanno A, Hayashi K, Iyoki K, Wakihara T, Okubo T. OSDA-free synthesis of zeolite beta: Broadening the methodology for a successful use of the product as a seed. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Han S, Linares N, Terlier T, Hoke JB, Martínez JG, Li Y, Rimer JD. Cooperative Surface Passivation and Hierarchical Structuring of Zeolite Beta Catalysts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sungmin Han
- University of Houston Chemical and Biomolecular Engineering UNITED STATES
| | - Noemi Linares
- University of Alicante: Universitat d'Alacant Chemistry UNITED STATES
| | - Tanguy Terlier
- Rice University Shared Equipment Authority UNITED STATES
| | | | | | - Yuejin Li
- BASF Corp Research and Development UNITED STATES
| | - Jeffrey D. Rimer
- University of Houston Chemical and Biomolecular Engineering 4726 Calhoun RoadS222 Engineering Building 1 77204 Houston UNITED STATES
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10
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Liang J, Guo L, Gao W, Wang C, Guo X, He Y, Yang G, Tsubaki N. Direct Conversion of CO 2 to Aromatics over K–Zn–Fe/ZSM-5 Catalysts via a Fischer–Tropsch Synthesis Pathway. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c05061] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiaming Liang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Lisheng Guo
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui 230061, China
| | - Weizhe Gao
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Chengwei Wang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Xiaoyu Guo
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Yingluo He
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Guohui Yang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Noritatsu Tsubaki
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
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11
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Lee G, Jang E, Lee T, Jeong Y, Kim H, Lee S, Chung YG, Ha KS, Baik H, Jang HG, Cho SJ, Choi J. Effective Delamination of a Layered Two-Dimensional MCM-22 Zeolite: Quantitative Insights into the Role of the Delaminated Structure on Acid Catalytic Reactions. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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12
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Dong X, Wang W, Yang G, Wang L. Uniform Mesoporosity Development in Incorporated β Zeolite: Dual-Template Strategy. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiuqin Dong
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Weilin Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Guochao Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Lingtao Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
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13
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Abstract
Advanced biofuels are required to facilitate the energy transition away from fossil fuels and lower the accompanied CO2 emissions. Particularly, jet fuel needs a renewable substitute, for which novel production routes and technology are needed that are more efficient and economically viable. The direct conversion of bio-syngas into fuel is one such development that could improve the efficiency of biomass for jet fuel processes. In this work, bifunctional catalysts based on hierarchical zeolites are prepared, tested and evaluated for their potential use in the production of actual jet fuel. The bifunctional catalysts Co/H-mesoZSM-5, Co/H-mesoBETA and Co/H-mesoY have been applied, and their performance is compared with their microporous zeolite-based counterparts and two conventional Fischer–Tropsch Co catalysts. Co/H-mesoZSM-5 and Co/H-mesoBETA showed great potential for the direct production of jet fuel as bifunctional catalysts. Besides the high jet fuel yields under Fischer–Tropsch synthesis conditions at, respectively, 30.4% and 41.0%, the product also contained the high branched/linear hydrocarbon ratio desired to reach jet fuel specifications. This reveals the great potential for the direct conversion of syngas into jet fuel using catalysts that can be prepared in few steps from commercially available materials.
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Abstract
Catalytic oxidation is a key technology for the conversion of petroleum-based feedstocks into useful chemicals (e.g., adipic acid, caprolactam, glycols, acrylates, and vinyl acetate) since this chemical transformation is always involved in synthesis processes. Millions of tons of these compounds are annually produced worldwide and find applications in all areas of chemical industries, ranging from pharmaceutical to large-scale commodities. The traditional industrial methods to produce large amounts of those compounds involve over-stoichiometric quantities of toxic inorganic reactants and homogeneous catalysts that operate at high temperature, originating large amounts of effluents, often leading to expensive downstream processes, along with nonrecovery of valuable catalysts that are loss within the reactant effluent. Due to the increasingly stringent environmental legislation nowadays, there is considerable pressure to replace these antiquate technologies, focusing on heterogeneous catalysts that can operate under mild reactions conditions, easily recovered, and reused. Parallelly, recent advances in the synthesis and characterization of metal complexes and metal clusters on support surfaces have brought new insights to catalysis and highlight ways to systematic catalysts design. This review aims to provide a comprehensive bibliographic examination over the last 10 years on the development of heterogeneous catalysts, i.e., organometallic complexes or metal clusters immobilized in distinct inorganic supports such as zeolites, hierarchical zeolites, silicas, and clays. The methodologies used to prepare and/or modify the supports are critically reviewed, as well as the methods used for the immobilization of the active species. The applications of the heterogenized catalysts are presented, and some case-studies are discussed in detail.
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15
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Guo K, Ma A, zijian W, Li J, Wu B, Liu T, Li D. Investigation of n-Heptane Hydroisomerization over Alkali-acid-treated Hierarchical Pt/ZSM-22 Zeolites. NEW J CHEM 2022. [DOI: 10.1039/d2nj02820d] [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 design of various hierarchical and morphology ZSM-22 zeolite catalysts is attempted through the post-treatment of different concentrations of NaOH and subsequently, deals with HCl solution including fluosilicic acid (H2SiF6)...
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16
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Zhou P, Liu MN, Luo QX, Zhang J, Chen H, Ma X, Hao QQ. Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol. RSC Adv 2022; 12:4865-4873. [PMID: 35425505 PMCID: PMC8981250 DOI: 10.1039/d2ra00209d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/02/2022] [Indexed: 11/21/2022] Open
Abstract
To develop an efficient solid acid catalysts for the Friedel–Crafts alkylation reaction, especially for involving bulky molecules, the direct synthesis of hierarchical nanocrystalline β zeolites were achieved by using amphiphilic organosilane ([(CH3O)3SiC3H6N(CH3)2C18H37]Cl, TPOAC) as collaborative structure-directing agent (SDA). The growth evolution of β crystals and the influence of TPOAC/SiO2 molar ratio on the mesoporous structure, crystal size, and acidic properties of β zeolites were investigated and discussed in detail. The characterization results reveal that intracrystalline mesopores and intercrystalline mesopores/macropores via the stacking of β nanocrystals were generated over the hierarchical β zeolites. Moreover, most of the strong acid sites were well remained compared with the conventional microporous β zeolite. Consequently, the hierarchical nanocrystalline β zeolite synthesized under the optimized synthesis conditions shows improved specific catalytic activity of acid sites (turnover number, TON) in alkylation of benzene with benzyl alcohol, which can be attributed to the integrated balance of considerable mesoporosity, accessibility of the acid sites, and well-remained strong acid sites in the hierarchical β zeolite. Hierarchical β zeolite with enhanced transport and specific catalytic activity of acid sites in Friedel–Crafts alkylation was achieved by using amphiphilic organosilane surfactant as mesopores-directing agent and crystal growth inhibitor.![]()
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Affiliation(s)
- Pan Zhou
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Meng-Nan Liu
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Qun-Xing Luo
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Xi'an, Shaanxi 710069, China
- International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an, Shaanxi 710069, China
| | - Jianbo Zhang
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Xi'an, Shaanxi 710069, China
- International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an, Shaanxi 710069, China
| | - Huiyong Chen
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Xi'an, Shaanxi 710069, China
- International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an, Shaanxi 710069, China
| | - Xiaoxun Ma
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Xi'an, Shaanxi 710069, China
- International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an, Shaanxi 710069, China
| | - Qing-Qing Hao
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Xi'an, Shaanxi 710069, China
- International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources, Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an, Shaanxi 710069, China
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Abstract
Currently, zeolites are one of the most important classes of heterogeneous catalysts in chemical industries owing to their unique structural characteristics such as molecular-scale size/shape-selectivity, heterogenized single catalytic sites in the framework, and excellent stability in harsh industrial processes. However, the microporous structure of conventional zeolite materials limits their applications to small-molecule reactions. To alleviate this problem, mesoporous zeolitic frameworks were developed. In the last few decades, several methods have been developed for the synthesis of mesoporous zeolites; these zeolites have demonstrated greater lifetime and better performance than their bulk microporous counterparts in many catalytic processes, which can be explained by the rapid diffusion of reactant species into the zeolite framework and facile accessibility to bulky molecules through the mesopores. Mesoporous zeolites provide versatile opportunities not only in conventional chemical industries but also in emerging catalysis fields. This review presents many state-of-the-art mesoporous zeolites, discusses various strategies for their synthesis, and details their contributions to catalytic reactions including catalytic cracking, isomerization, alkylation and acylation, alternative fuel synthesis via methanol-to-hydrocarbon (MTH) and Fischer–Tropsch synthesis (FTS) routes, and different fine-chemical syntheses.
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18
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Qi T, Kang Y, Arowo M, Luo Y, Chu GW, Zhang L, Zou HK, Sun B, Chen JF. Production of ZSM-5 zeolites using rotating packed bed: Impact mechanism and process synthesis studies. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Medeiros-Costa IC, Dib E, Nesterenko N, Dath JP, Gilson JP, Mintova S. Silanol defect engineering and healing in zeolites: opportunities to fine-tune their properties and performances. Chem Soc Rev 2021; 50:11156-11179. [PMID: 34605833 DOI: 10.1039/d1cs00395j] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Zeolites have been game-changing materials in oil refining and petrochemistry over the last 60 years and have the potential to play the same role in the emerging processes of the energy and environmental transition. Although zeolites are crystalline inorganic solids, their structures are not perfect and the presence of defect sites - mainly Brønsted acid sites and silanols - influences their thermal and chemical resistance as well as their performances in key areas such as catalysis, gas and liquid separations and ion-exchange. In this paper, we review the type of defects in zeolites and the characterization techniques used for their identification and quantification with the focus on diffraction, spectroscopic and modeling approaches. More specifically, throughout the review, we will focus on silanol (Si-OH) defects located within the micropore structure and/or on the external surface of zeolites. The main approaches applied to engineer and heal defects and their consequences on the properties and applications of zeolites in catalysis and separation processes are highlighted. Finally, the challenges and opportunities of silanol defect engineering in tuning the properties of zeolites to meet the requirements for specific applications are presented.
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Affiliation(s)
- Izabel C Medeiros-Costa
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France. .,Total Research and Technology Feluy, B-7181 Seneffe, Belgium
| | - Eddy Dib
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
| | | | | | - Jean-Pierre Gilson
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
| | - Svetlana Mintova
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
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20
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Resasco DE, Crossley SP, Wang B, White JL. Interaction of water with zeolites: a review. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1948301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Daniel E. Resasco
- University of Oklahoma, School of Chemical, Biological, and Materials Engineering, Norman, OK, USA
| | - Steven P. Crossley
- University of Oklahoma, School of Chemical, Biological, and Materials Engineering, Norman, OK, USA
| | - Bin Wang
- University of Oklahoma, School of Chemical, Biological, and Materials Engineering, Norman, OK, USA
| | - Jeffery L. White
- Oklahoma State University, School of Chemical Engineering, Stillwater, OK, USA
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21
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Wu H, Li T, Maddala SP, Khalil ZJ, Joosten RRM, Mezari B, Hensen EJM, de With G, Friedrich H, van Bokhoven JA, Patterson JP. Studying Reaction Mechanisms in Solution Using a Distributed Electron Microscopy Method. ACS NANO 2021; 15:10296-10308. [PMID: 34077193 DOI: 10.1021/acsnano.1c02461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electron microscopy (EM) of materials undergoing chemical reactions provides knowledge of the underlying mechanisms. However, the mechanisms are often complex and cannot be fully resolved using a single method. Here, we present a distributed electron microscopy method for studying complex reactions. The method combines information from multiple stages of the reaction and from multiple EM methods, including liquid phase EM (LP-EM), cryogenic EM (cryo-EM), and cryo-electron tomography (cryo-ET). We demonstrate this method by studying the desilication mechanism of zeolite crystals. Collectively, our data reveal that the reaction proceeds via a two-step anisotropic etching process and that the defects in curved surfaces and between the subunits in the crystal control the desilication kinetics by directing mass transport.
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Affiliation(s)
- Hanglong Wu
- Laboratory of Physical Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Teng Li
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Sai P Maddala
- Laboratory of Physical Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Zafeiris J Khalil
- Laboratory of Physical Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Rick R M Joosten
- Center for Multiscale Electron Microscopy, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Brahim Mezari
- Inorganic Materials & Catalysis Group, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Emiel J M Hensen
- Inorganic Materials & Catalysis Group, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Gijsbertus de With
- Laboratory of Physical Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Heiner Friedrich
- Laboratory of Physical Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
- Center for Multiscale Electron Microscopy, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jeroen A van Bokhoven
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Joseph P Patterson
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
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22
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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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23
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Kuterasiński Ł, Filek U, Gackowski M, Zimowska M, Ruggiero-Mikołajczyk M, Jodłowski PJ. Sonochemically prepared hierarchical MFI-type zeolites as active catalysts for catalytic ethanol dehydration. ULTRASONICS SONOCHEMISTRY 2021; 74:105581. [PMID: 33975188 PMCID: PMC8129989 DOI: 10.1016/j.ultsonch.2021.105581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/13/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
In this paper, the ultrasonic-assisted desilication technique was reported as an attractive and efficient way for the preparation of hierarchical zeolites with MFI structure type. The prepared materials were used as active catalysts for the dehydration of ethanol into diethyl ether and ethylene. For all catalysts, the selectivity to diethyl ether was ca 95% or higher up to 210 °C, with catalytic activity in the range of 40-68%. In case of desilicated zeolites, at 270-290 °C, the conversion of ethanol was full with selectivity to ethylene ca 80%. MFI-type commercial zeolite was treated with a sodium and/or tetrabutylammonium hydroxide aqueous solutions (NaOH or NaOH/TBAOH) for 30 min. In the case of the application of ultrasounds, a QSonica Q700 sonicator (60 W and 20 kHz) equipped with a "1" diameter horn was used. In all cases, desilication was performed in an ice bath in order to keep the procedure conditions at low temperature. It was indicated that the use of ultrasounds during desilication procedure caused higher extraction of silicon and aluminum, which was connected with an elevated mesoporosity in relation to the samples modified in the absence of ultrasounds. Ultrasonic-assisted treatment of MFI-type zeolite caused also an apparent formation of numerous holes inside zeolite grains, resembling the look of "swiss cheese". Furthermore, it was indicated that the samples prepared using ultrasonic irradiation exhibited enhanced catalytic properties in the dehydration of ethanol. For instance, MFI-type zeolite treated with NaOH/TBAOH alkaline mixture containing 10 mol% of TBAOH in the presence of ultrasounds (M-10 s) demonstrated higher both conversion of ethanol (59% vs. 47%) and selectivity to diethyl ether (95% vs. 93%) in comparison with zeolite modified conventionally (M-10c). The best catalyst was zeolite ultrasonically desilicated with NaOH/TBAOH solution of 70 mol% of TBAOH (M-70s). Generally, this catalyst indicated the highest conversion of ethanol, very high selectivity to diethyl ether (94-100%) at 150-210 °C and the highest selectivity to ethylene among investigated catalysts (21%, 66% and 84%) at 230 °C, 250 oC and 270 °C.
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Affiliation(s)
- Ł Kuterasiński
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - U Filek
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland
| | - M Gackowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland
| | - M Zimowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland
| | - M Ruggiero-Mikołajczyk
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland
| | - P J Jodłowski
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
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24
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Contributions of post-synthesized mesopore structures of ferrierite zeolite for gas-phase dimethyl ether carbonylation activity. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0806-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Jain R, Chawla A, Linares N, García Martínez J, Rimer JD. Spontaneous Pillaring of Pentasil Zeolites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100897. [PMID: 33904205 DOI: 10.1002/adma.202100897] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Conventional methods to prepare hierarchical zeolites depend upon the use of organic structure-directing agents and often require multiple synthesis steps with limited product yield and Brønsted acid concentration. Here, it is shown that the use of MEL- or MFI-type zeolites as crystalline seeds induces the spontaneous formation of self-pillared pentasil zeolites, thus avoiding the use of any organic or branching template for the crystallization of these hierarchical structures. The mechanism of formation is evaluated by time-resolved electron microscopy to provide evidence for the heterogeneous nucleation and growth of sequentially branched nanosheets from amorphous precursors. The resulting hierarchical zeolites have large external surface area and high percentages of external acid sites, which markedly improves their catalytic performance in the Friedel-Crafts alkylation and methanol to hydrocarbons reactions. These findings highlight a facile, commercially viable synthesis method to reduce mass-transport limitations and improve the performance of zeolite catalysts.
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Affiliation(s)
- Rishabh Jain
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Aseem Chawla
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Noemi Linares
- Molecular Nanotechnology Lab, Department of Inorganic Chemistry, University of Alicante, Alicante, 03690, Spain
| | - Javier García Martínez
- Molecular Nanotechnology Lab, Department of Inorganic Chemistry, University of Alicante, Alicante, 03690, Spain
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
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26
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Ribeiro VM, Enzweiler H, Castilhos F. Evaluation of post synthesis treatments over commercial ZSM-5 zeolite in the reaction route of oleic acid esterification with methyl acetate. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01957-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Yang K, Zhang D, Zou M, Yu L, Huang S. The Known and Overlooked Sides of Zeolite‐Extrudate Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202001601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Keyu Yang
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Dazhi Zhang
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Mingming Zou
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Lili Yu
- Division of catalysis Zhejiang New Harmony Union (NHU) Co. Ltd Xinchang, Zhejiang 312500 P. R. China
| | - Shengjun Huang
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
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28
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de Oliveira AA, da Silva VL, de Aguiar Pontes D, Almeida DF, Silva DSA, Ferreira JMM, Santos RC, Urquieta-Gonzalez EA, Pontes LAM. Mesoporous HBeta zeolites application in the desulfurization of 2-methylthiophene. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-020-01921-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Synthesis methods and recent advances in hierarchical zeolites: a brief review. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-021-02183-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Peng R, Wan Z, Lv H, Guan Y, Xu H, Wu P. Al-Modified Ti-MOR as a robust catalyst for cyclohexanone ammoximation with enhanced anti-corrosion performance. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01396c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The skeleton desilication accompanied by Ti active sites leaching accounts for the dominant chemical deactivation reasons in the alkali liquid-phase ammoximation, which could be retarded by creating a protective Al-rich shell.
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Affiliation(s)
- Rusi Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Zhipeng Wan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Huanzhi Lv
- Zhejiang JRT New Material Co. Ltd, Fuling Rd. 1567, Nanming Street, Liandu District, Lishui, 323000, Zhejiang Province, China
| | - Yejun Guan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P.R. China
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31
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Seifert M, Marschall MS, Gille T, Jonscher C, Busse O, Paasch S, Brunner E, Reschetilowski W, Weigand JJ. Ethanol to Aromatics on Modified H‐ZSM‐5 Part I: Interdependent Dealumination Actions. ChemCatChem 2020. [DOI: 10.1002/cctc.202001344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Markus Seifert
- Chair of Inorganic Molecular Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Mathias S. Marschall
- Chair of Inorganic Molecular Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Torsten Gille
- Chair of Inorganic Molecular Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Clemens Jonscher
- Chair of Inorganic Molecular Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Oliver Busse
- Chair of Inorganic Molecular Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Mommsenstraße 4 01069 Dresden Germany
| | - Silvia Paasch
- Chair of Bioanalytical Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Bergstraße 66 01069 Dresden Germany
| | - Eike Brunner
- Chair of Bioanalytical Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Bergstraße 66 01069 Dresden Germany
| | | | - Jan J. Weigand
- Chair of Inorganic Molecular Chemistry Faculty of Chemistry and Food Chemistry TU Dresden Mommsenstraße 4 01069 Dresden Germany
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32
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Heard CJ, Grajciar L, Uhlík F, Shamzhy M, Opanasenko M, Čejka J, Nachtigall P. Zeolite (In)Stability under Aqueous or Steaming Conditions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003264. [PMID: 32780912 DOI: 10.1002/adma.202003264] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Zeolites are among the most environmentally friendly materials produced industrially at the Megaton scale. They find numerous commercial applications, particularly in catalysis, adsorption, and separation. Under ambient conditions aluminosilicate zeolites are stable when exposed to water or water vapor. However, at extreme conditions as high temperature, high water vapor pressure or increased acidity/basicity, their crystalline framework can be destroyed. The stability of the zeolite framework under aqueous conditions also depends on the concentration and character of heteroatoms (other than Al) and the topology of the zeolite. The factors critical for zeolite (in)stability in the presence of water under various conditions are reviewed from the experimental as well as computational sides. Nonreactive and reactive interactions of water with zeolites are addressed. The goal of this review is to provide a comparative overview of all-silica zeolites, aluminosilicates and zeolites with other heteroatoms (Ti, Sn, and Ge) when contacted with water. Due attention is also devoted to the situation when partial zeolite hydrolysis is used beneficially, such as the formation of hierarchical zeolites, synthesis of new zeolites or fine-tuning catalytic or adsorption characteristics of zeolites.
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Affiliation(s)
- Christopher James Heard
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Lukáš Grajciar
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Filip Uhlík
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Mariya Shamzhy
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Maksym Opanasenko
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Petr Nachtigall
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
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33
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Maeda H, Suzumura K, Kasuga T. Removal of humic acid from aqueous solutions by a novel hydrogarnet/zeolite composite. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03590-5] [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] Open
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34
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Beheshti MS, Ahmadpour J, Behzad M, Arabi H. Preparation of hierarchical H-[B]-ZSM-5 zeolites by a desilication method as a highly selective catalyst for conversion of methanol to propylene. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2020. [DOI: 10.1007/s43153-020-00075-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Jiao Y, Forster L, Xu S, Chen H, Han J, Liu X, Zhou Y, Liu J, Zhang J, Yu J, D'Agostino C, Fan X. Creation of Al-Enriched Mesoporous ZSM-5 Nanoboxes with High Catalytic Activity: Converting Tetrahedral Extra-Framework Al into Framework Sites by Post Treatment. Angew Chem Int Ed Engl 2020; 59:19478-19486. [PMID: 32159268 PMCID: PMC7687177 DOI: 10.1002/anie.202002416] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Indexed: 11/15/2022]
Abstract
ZSM‐5 zeolite nanoboxes with accessible meso‐micro‐pore architecture and strong acid sites are important in relevant heterogeneous catalysis suffering from mass transfer limitations and weak acidities. Rational design of parent zeolites with concentrated and non‐protective coordination of Al species can facilitate post‐synthetic treatment to produce mesoporous ZSM‐5 nanoboxes. In this work, a simple and effective method was developed to convert parent MFI zeolites with tetrahedral extra‐framework Al into Al‐enriched mesoporous ZSM‐5 nanoboxes with low silicon‐to‐aluminium ratios of ≈16. The parent MFI zeolite was prepared by rapid ageing of the zeolite sol gel synthesis mixture. The accessibility to the meso‐micro‐porous intra‐crystalline network was probed systematically by comparative pulsed field gradient nuclear magnetic resonance diffusion measurements, which, together with the strong acidity of nanoboxes, provided superb catalytic activity and longevity in hydrocarbon cracking for propylene production.
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Affiliation(s)
- Yilai Jiao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.,Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Luke Forster
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Shaojun Xu
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Huanhao Chen
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Jingfeng Han
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xuqing Liu
- Department of Materials, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Yangtao Zhou
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Jinmin Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Jinsong Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China.,International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Carmine D'Agostino
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Xiaolei Fan
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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36
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Chen LH, Sun MH, Wang Z, Yang W, Xie Z, Su BL. Hierarchically Structured Zeolites: From Design to Application. Chem Rev 2020; 120:11194-11294. [DOI: 10.1021/acs.chemrev.0c00016] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Li-Hua Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, 430070 Wuhan, China
| | - Ming-Hui Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, 430070 Wuhan, China
- Laboratory of Inorganic Materials Chemistry, University of Namur, 61 rue de Bruxelles, B-5000 Namur, Belgium
| | - Zhao Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, 430070 Wuhan, China
| | - Weimin Yang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, China
| | - Zaiku Xie
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, China
| | - Bao-Lian Su
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, 430070 Wuhan, China
- Laboratory of Inorganic Materials Chemistry, University of Namur, 61 rue de Bruxelles, B-5000 Namur, Belgium
- Clare Hall, University of Cambridge, Cambridge CB2 1EW, United Kingdom
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37
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Panda D, Kumar EA, Singh SK. Introducing mesoporosity in zeolite 4A bodies for Rapid CO2 capture. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101223] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Effects of nanosheet catalysts on synthesis of aromatics and light hydrocarbons from acetylene. Catal Today 2020. [DOI: 10.1016/j.cattod.2020.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Safaei E, Taghizadeh M. Effects of Desilication in NaOH/Piperidine Medium and Phosphorus Modification on the Catalytic Activity of HZSM-5 Catalyst in Methanol to Propylene Conversion. Comb Chem High Throughput Screen 2020; 24:546-558. [PMID: 32664835 DOI: 10.2174/1386207323666200714002844] [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: 04/23/2020] [Revised: 05/11/2020] [Accepted: 05/16/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Propylene is one of the main petrochemical building blocks applied as a feedstock for various chemical and polymer intermediates. The methanol-to-propylene (MTP) processes are reliable options for propylene production from non-petroleum resources. The highsilica ZSM-5 zeolite is found to be a reliable candidate for the methanol to propylene catalysis. OBJECTIVE In this study, the mesoporosity was first introduced into a high silica ZSM-5 zeolite via an alkaline treatment by NaOH solution with piperidine to decrease the diffusion limitation, and then the structure of zeolite was stabilized by phosphorus modification to improve the acidic properties and to enhance the catalyst stability. METHODS High-silica H-ZSM-5 catalysts (Si/Al = 200) were successfully prepared through microwave-assisted hydrothermal technique in the presence of tetrapropyl ammonium hydroxide (TPAOH) structure-directing agent. The mesoporosity was efficiently introduced into the ZSM-5 crystals via desilication derived from alkaline NaOH/piperidine solution. Then, the acidity of the desilicated ZSM-5 samples was improved using phosphorus modification. The catalysts were subjected to XRD, ICP-OES, FE-SEM, BET, TGA, FT-IR and NH3-TPD analysis. RESULTS The catalytic performance of the prepared catalysts in the methanol to propylene (MTP) reaction was examined in a fixed-bed reactor at 475 °C, atmospheric pressure and methanol WHSV of 0.9 h-1. The results showed that the alkaline treatment in NaOH/piperidine solution created uniform mesoporosity with no severe damage in the crystal structure. Similarly, phosphorus modification developed the acidic features and led to the optimal catalytic efficiency in terms of the maximum propylene selectivity (49.16%) and P/E ratio (5.97) as well as the catalyst lifetime. CONCLUSION The results showed an excellent catalytic activity in terms of 99.21% methanol conversion, good propylene selectivity up to 49.16%, a high ratio of P/E of 5.97 and a low selectivity to C5 + hydrocarbons of 11.57% for ZS-D-PI-P sample.
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Affiliation(s)
- Ebrahim Safaei
- Chemical Engineering Department, Babol Noshirvani University of Technology, P.O. Box 484, Babol 4714871167, Iran
| | - Majid Taghizadeh
- Chemical Engineering Department, Babol Noshirvani University of Technology, P.O. Box 484, Babol 4714871167, Iran
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Fernandez S, Ostraat ML, Zhang K. Toward rational design of hierarchical beta zeolites: An overview and beyond. AIChE J 2020. [DOI: 10.1002/aic.16943] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sergio Fernandez
- Aramco Research Center—BostonAramco Services Company Cambridge Massachusetts
| | - Michele L. Ostraat
- Aramco Research Center—BostonAramco Services Company Cambridge Massachusetts
| | - Ke Zhang
- Aramco Research Center—BostonAramco Services Company Cambridge Massachusetts
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Ma Q, Fu T, Li H, Cui L, Li Z. Insight into the Selection of the Post-Treatment Strategy for ZSM-5 Zeolites for the Improvement of Catalytic Stability in the Conversion of Methanol to Hydrocarbons. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00084] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qian Ma
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Tingjun Fu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Han Li
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Liping Cui
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Zhong Li
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
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Li H, Zhai Y, Zhang X, Lv G, Shen Y, Wang X, Jiang T, Wu Y. Iron-Containing TS-1 Zeolites with Controllable Mesopores by Desilication and Their Application in Phenol Hydroxylation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00048] [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)
- Hang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Yi Zhai
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Xubin Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Guojun Lv
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, PR China
| | - Yu Shen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Xuqing Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Tao Jiang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Yuzhou Wu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
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Fu T, Wang Y, Li Z. Surface-Protection-Induced Controllable Restructuring of Pores and Acid Sites of the Nano-ZSM-5 Catalyst and Its Influence on the Catalytic Conversion of Methanol to Hydrocarbons. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3737-3749. [PMID: 32239942 DOI: 10.1021/acs.langmuir.0c00214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Creating mesopores for the nano-ZSM-5 catalyst could further promote the diffusion of molecules in its micropores and improve the catalytic activity and stability. Inorganic alkali treatment of ZSM-5 usually removes internal silica for the existence of an aluminum distribution gradient and leads to a hollow structure. Herein, surface TPA+ adsorption-induced protective desilication and recrystallization successively occurred during hydrothermal treatment, and controllable mesopore fabrication was achieved. The evolution of mesopores and acid sites was characterized by N2 physisorption, XRD, XRF, TEM, NH3-TPD, Py-IR, 27Al MAS NMR, 29Si MAS NMR, and TG techniques. It was found that the TPAOH concentration influenced the formation of internal cavity and mesopores in the shell. Introducing TPABr into TPAOH solution increased the surface protection because of the increased TPA+ adsorption, and coated hollow ZSM-5 was obtained. The acidity was restructured during the above mesopore fabrication. High-concentration TPAOH solution promoted the insertion of destructive Al into the skeleton structure to form strong acid sites, and the catalytic lifetime was recovered and even obviously prolonged. This reflected the key role of strong acid sites on the catalytic performance. Applying hollow nano-ZSM-5 with a mesoporous shell and strong acidity increased the lifetime by 50% and the conversion capacity for liquid hydrocarbon by 20% compared to the parent sample.
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Affiliation(s)
- Tingjun Fu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yujie Wang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Zhong Li
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
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Jiao Y, Forster L, Xu S, Chen H, Han J, Liu X, Zhou Y, Liu J, Zhang J, Yu J, D'Agostino C, Fan X. Creation of Al‐Enriched Mesoporous ZSM‐5 Nanoboxes with High Catalytic Activity: Converting Tetrahedral Extra‐Framework Al into Framework Sites by Post Treatment. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yilai Jiao
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 China
- Department of Chemical Engineering and Analytical Science School of Engineering The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Luke Forster
- Department of Chemical Engineering and Analytical Science School of Engineering The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Shaojun Xu
- Department of Chemical Engineering and Analytical Science School of Engineering The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Huanhao Chen
- Department of Chemical Engineering and Analytical Science School of Engineering The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Jingfeng Han
- National Engineering Laboratory for Methanol to Olefins Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Xuqing Liu
- Department of Materials School of Natural Sciences The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Yangtao Zhou
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 China
| | - Jinmin Liu
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 China
| | - Jinsong Zhang
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 China
- International Center of Future Science Jilin University 2699 Qianjin Street Changchun 130012 China
| | - Carmine D'Agostino
- Department of Chemical Engineering and Analytical Science School of Engineering The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Xiaolei Fan
- Department of Chemical Engineering and Analytical Science School of Engineering The University of Manchester Oxford Road Manchester M13 9PL UK
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The influence of zoned Al distribution of ZSM-5 zeolite on the reactivity of hexane cracking. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Kolesnichenko NV, Ezhova NN, Snatenkova YM. Lower olefins from methane: recent advances. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Modern methods for methane conversion to lower olefins having from 2 to 4 carbon atoms per molecule are generalized. Multistage processing of methane into ethylene and propylene via syngas or methyl chloride and methods for direct conversion of CH4 to ethylene are described. Direct conversion of syngas to olefins as well as indirect routes of the process via methanol or dimethyl ether are considered. Particular attention is paid to innovative methods of olefin synthesis. Recent achievements in the design of catalysts and development of new techniques for efficient implementation of oxidative coupling of methane and methanol conversion to olefins are analyzed and systematized. Advances in commercializing these processes are pointed out. Novel catalysts for Fischer – Tropsch synthesis of lower olefins from syngas and for innovative technique using oxide – zeolite hybrid catalytic systems are described. The promise of a new route to lower olefins by methane conversion via dimethyl ether is shown. Prospects for the synthesis of lower olefins via methyl chloride and using non-oxidative coupling of methane are discussed. The most efficient processes used for processing of methane to lower olefins are compared on the basis of degree of conversion of carbonaceous feed, possibility to integrate with available full-scale production, number of reaction stages and thermal load distribution.
The bibliography includes 346 references.
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Kuterasiński Ł, Rojek W, Gackowski M, Zimowska M, Jodłowski PJ. Sonically modified hierarchical FAU-type zeolites as active catalysts for the production of furan from furfural. ULTRASONICS SONOCHEMISTRY 2020; 60:104785. [PMID: 31539732 DOI: 10.1016/j.ultsonch.2019.104785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/29/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
In this study, the sonochemical-assisted desilication method was applied as a special and innovative way of preparing hierarchical zeolites. The physicochemical properties of the hierarchical zeolites prepared using the sonochemical route were compared with those prepared using the conventional desilication method. Commercial zeolite with FAU-type structure was desilicated with a sodium and tetrabutylammonium hydroxide aqueous solution (NaOH/TBAOH) for 30 min. The ultrasound treatment process was performed using a QSonica Q700 sonicator (Church Hill Rd, Newtown, CT, USA) equipped with a ½″ diameter horn. The average power of sonication was 60 W, and the frequency was 20 kHz. During the sonication procedure, the alkaline solution with the catalyst precursor and sonicator probe were placed in an ice bath to keep them at room temperature. The prepared catalyst samples were examined by ICP-OES, XRD, SEM, NMR, and nitrogen sorption techniques. The acidic properties of the prepared hierarchical zeolite samples were assessed by means of IR spectroscopy with ammonia and carbon monoxide sorption as probe molecules. All catalysts were studied in the decarbonylation of furfural into furan. Independently of the application of ultrasonic irradiation, desilication of zeolites with an NaOH/TBAOH mixture extracts comparable amounts of silicon, resulting in comparable crystallinity and acidity. On the other hand, the samples prepared in the presence of ultrasounds revealed higher both mesoporosity and enhanced catalytic properties in the reaction of decarbonylation of furfural into furan in comparison with their counterparts prepared using the conventional method.
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Affiliation(s)
- Łukasz Kuterasiński
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - Wojciech Rojek
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - Mariusz Gackowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - Małgorzata Zimowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - P J Jodłowski
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland.
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Zhang K, Fernandez S, Converse ES, Kobaslija S. Exploring the impact of synthetic strategies on catalytic cracking in hierarchical beta zeolites via hydrothermal desilication and organosilane-templated synthesis. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01209b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Hierarchical zeolites can be synthesized by different strategies, resulting in the creation of mesoporosity with different configurations (inter-crystalline or intra-crystalline) in addition to unique porous and catalytic properties.
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Affiliation(s)
- Ke Zhang
- Aramco Services Company
- Aramco Research Centre—Boston
- Cambridge
- USA
| | - Sergio Fernandez
- Aramco Services Company
- Aramco Research Centre—Boston
- Cambridge
- USA
| | | | - Sarah Kobaslija
- Aramco Services Company
- Aramco Research Centre—Boston
- Cambridge
- USA
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Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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50
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Michael Addition of 1,3-Dicarbonyl Derivatives in the Presence of Zeolite Y as an Heterogeneous Catalyst. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01424-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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