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Valderrama-Zapata R, García-Sánchez JT, Vargas-Montañez OJ, Rincón-Ortiz SA, Mora-Vergara ID, Pérez-Martínez D, Morales-Valencia EM, Baldovino-Medrano VG. Interplay Between Ni and Brønsted and Lewis Acid Sites in the Hydrodesulfurization of Dibenzothiophene. Chemphyschem 2024; 25:e202300987. [PMID: 38653714 DOI: 10.1002/cphc.202300987] [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: 12/21/2023] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 04/25/2024]
Abstract
Ni-MoS2/γ-Al2O3 catalysts are commonly used in hydrotreating to enhance fossil fuel quality. The extensive research on these catalysts reveals a gap in understanding the role of Ni, often underestimated as an inactive sulfide phase or just a MoS2 promoter. In this work, we focused on analyzing whether well-dispersed supported nickel nanoparticles can be active in the hydrodesulfurization of dibenzothiophene. We dispersed Ni by Strong Electrostatic Adsorption (SEA) method across four supports with different types of acidity: silica (~ neutral acidity), γ-Al2O3 (Lewis acidity), H+-Y zeolite, and microporous-mesoporous H+-Y zeolite (both with Brønsted-Lewis acidity). Our findings reveal that Ni is indeed active in dibenzothiophene hydrodesulfurization, even with alumina and silica as supports, although their catalytic activity declines abruptly in the first hours. Contrastingly, the acid nature of zeolites imparts sustained stability and performance, attributed to robust metal-support interactions. The efficacy of the SEA method and the added mesoporosity in zeolites further amplify catalytic efficiency. Overall, we demonstrate that Ni nanoparticles may perform as a hydrogenating metal in the same manner as noble metals such as Pt and Pd perform in hydrodesulfurization. We discuss some of the probable reasons for such performance and remark on the role of Ni in hydrotreatment.
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Affiliation(s)
- Rodrigo Valderrama-Zapata
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
| | - Julieth T García-Sánchez
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
- Laboratorio Central de Ciencia de Superficies (SurfLab), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
| | - Omar J Vargas-Montañez
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
| | - Sergio A Rincón-Ortiz
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
- Laboratorio Central de Ciencia de Superficies (SurfLab), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
| | - Iván D Mora-Vergara
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
- Grupo de Investigación en Reingeniería, Innovación y Productividad (GREIP), Instituto Universitario de la Paz, Centro de Investigaciones Santa Lucía, km 14 vía, Barrancabermeja, Santander, 687038, Colombia
| | - David Pérez-Martínez
- Centro de Innovación y Tecnología (ICP), Ecopetrol S.A., km 7 vía, Piedecuesta, Santander), A.A., 4185, Colombia
| | - Edgar M Morales-Valencia
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
- Grupo de Investigación en Reingeniería, Innovación y Productividad (GREIP), Instituto Universitario de la Paz, Centro de Investigaciones Santa Lucía, km 14 vía, Barrancabermeja, Santander, 687038, Colombia
| | - Víctor G Baldovino-Medrano
- Centro de Investigaciones en Catálisis (CICAT), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
- Laboratorio Central de Ciencia de Superficies (SurfLab), Universidad Industrial de Santander, Parque Tecnológico Guatiguará, km 2 vía Guatiguará, El Refugio, Piedecuesta, Santander, 681011, Colombia
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2
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Zhao M, Zhao J, Ding R, Zhu R, Li H, Li Z, Zhang J, Zhu Y, Li H. Insights into the superior resistance of In-Co3O4-Ga2O3/H-Beta to SO2 and H2O in the selective catalytic reduction of NOx by CH4. J Colloid Interface Sci 2022; 626:89-100. [DOI: 10.1016/j.jcis.2022.06.106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/06/2022] [Accepted: 06/21/2022] [Indexed: 10/31/2022]
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3
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Guo X, Qiao L, Zong S, Ye R, He Y, Cheng J, Cao X, Zhou Z, Yao Y. Effect of NaY Zeolite at Different Calcination Temperatures on the Activity in Hydroformylation of Formaldehyde. ChemistrySelect 2022. [DOI: 10.1002/slct.202201574] [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)
- Xiaxin Guo
- College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
| | - Luyang Qiao
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
| | - Shanshan Zong
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
| | - Runping Ye
- School of Chemistry and Chemical Engineering Nanchang University Nanchang 330031 China
| | - Yuntao He
- College of Chemistry Fuzhou University Fuzhou 350116 China
| | - Jiankai Cheng
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
| | - Xinyi Cao
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
| | - Zhangfeng Zhou
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
| | - Yuangen Yao
- Key Laboratory of Coal-to-Ethylene Glycol and Related Technologies of the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China
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4
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Yan R, Liu X, Liu J, Zhang L, Zhou S, Jia L, Hua M, Li H, Ji H, Zhu W. Modulating the active phase structure of
NiMo
/
Al
2
O
3
by La modification for ultra‐deep hydrodesulfurization of diesel. AIChE J 2022. [DOI: 10.1002/aic.17873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rixin Yan
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
- School of Materials Science and Engineering Jiangsu University Zhenjiang P. R. China
| | - Xiangqi Liu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian P. R. China
| | - Jixing Liu
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
| | - Lu Zhang
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
| | - Shuhui Zhou
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
| | - Lingfeng Jia
- College of Chemical Engineering and Environment, State Key Laboratory of Heavy Oil Processing China University of Petroleum‐Beijing Beijing P. R. China
| | - Mingqing Hua
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
| | - Huaming Li
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
| | - Haiyan Ji
- School of Materials Science and Engineering Jiangsu University Zhenjiang P. R. China
| | - Wenshuai Zhu
- School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu University Zhenjiang P. R. China
- College of Chemical Engineering and Environment, State Key Laboratory of Heavy Oil Processing China University of Petroleum‐Beijing Beijing P. R. China
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5
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Heteroatom‐Modified Zeolite Y and Catalytic Performance of Their NiWS Supported Catalysts for Hydrocracking of Naphthalene. ChemistrySelect 2022. [DOI: 10.1002/slct.202201390] [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]
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6
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Yu K, Kong W, Zhao Z, Duan A, Kong L, Wang X. Hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene over NiMo supported on yolk-shell silica catalysts with adjustable shell thickness and yolk size. J Catal 2022. [DOI: 10.1016/j.jcat.2022.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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7
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Role of the solvent evaporating temperature on the NiMo/TiO2-Al2O3 catalyst and the hydrodesulfurization performance for 4,6-dimenthyldibenzothiophehe. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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8
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Qi L, Zheng P, Zhao Z, Duan A, Xu C, Wang X. Insights into the intrinsic kinetics for efficient hydrodesulfurization of 4,6-dimethyldibenzothiophene over mesoporous CoMoS2/ZSM-5. J Catal 2022. [DOI: 10.1016/j.jcat.2022.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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9
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Lyu Y, Sun Z, Meng X, Wu Y, Liu X, Hu Y. Scale-up reactivation of spent S-Zorb adsorbents for gasoline desulfurization. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:126903. [PMID: 34461539 DOI: 10.1016/j.jhazmat.2021.126903] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/16/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Reactivating and recycling spent S-Zorb adsorbents reduce fresh adsorbents consumption and hazardous wastes emissions. Though the spent adsorbents have been successfully reactivated in the laboratory, a pilot-scale practice is indispensable before the industrial production. Herein, the reactivation of spent adsorbents was performed at laboratory (1.0 L), middle (10 L) and pilot (3000 L) scale, respectively. The inert Zn2SiO4 and ZnS over the spent adsorbents are recovered to active ZnO, and the NiS is transformed into NiO. There is almost no amplification effect in pore structure and acidity of the reactivated adsorbents, while NiO particle size reduces slightly with the reactivation scales. The computational fluid dynamic simulation indicates that enhanced contact between spent adsorbents and acid/alkaline reagents at larger scale account for the smaller NiO particle. It provides more hydrogenolysis centers for CS bonds breakage after reduction, increasing initial desulfurization activity. More importantly, the adsorbent reactivated at pilot scale exhibits comparable activity to the fresh one in gasoline desulfurization. The sulfur content in the outlet decreases to less than 10 μg g-1 from 1 h of reaction. Thus, the reactivation of spent S-Zorb adsorbents is successfully scaled up to the pilot scale, accelerating industrial practice in recycling the spent adsorbents.
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Affiliation(s)
- Yuchao Lyu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China; College of Chemical Engineering, China University of Petroleum, Qingdao 266555, China
| | - Zongwei Sun
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China; College of Chemical Engineering, China University of Petroleum, Qingdao 266555, China
| | - Xiaotong Meng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China; College of Chemical Engineering, China University of Petroleum, Qingdao 266555, China
| | - Yao Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China; College of Chemical Engineering, China University of Petroleum, Qingdao 266555, China
| | - Xinmei Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China; College of Chemical Engineering, China University of Petroleum, Qingdao 266555, China.
| | - Yue Hu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, China; College of Chemical Engineering, China University of Petroleum, Qingdao 266555, China
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10
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Fan J, Saxena S, Xiao C, Mei J, Wang G, Chen A, Zhang W, Li H, Duan A, Roberts WL. Molecular characteristics of sulfur compounds in oxidative desulfurization for heavy fuel oil based on APPI FT-ICR MS analysis. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Performance and techno-economic evaluations of co-processing residual heavy fraction in bio-oil hydrotreating. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.08.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Fan J, Xiao C, Mei J, Liu C, Duan A, Li J, Liu J, Zhang M. A hierarchical ZSM-22/PHTS composite material and its hydro-isomerization performance in hydro-upgrading of gasoline. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00400j] [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 ZSM-22/PHTS (ZP) composite material assembled from a ZSM-22 zeolite crystal displayed a mesoporous structure. The CoMo/ZPA120 catalyst presented a good balance between HDS activity (95.2%) and lower ΔRON (−1.1).
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Affiliation(s)
- Jiyuan Fan
- King Abdullah University of Science and Technology
- Clean Combustion Research Center
- Thuwal 23955-6900
- Saudi Arabia
- State Key Laboratory of Heavy Oil Processing
| | - Chengkun Xiao
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Beijing
- P. R. China
| | - Jinlin Mei
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Beijing
- P. R. China
| | - Cong Liu
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Beijing
- P. R. China
| | - Aijun Duan
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Beijing
- P. R. China
| | - Jianmei Li
- College of Science
- China University of Petroleum
- Beijing
- P. R. China
| | - Jian Liu
- College of Science
- China University of Petroleum
- Beijing
- P. R. China
| | - Min Zhang
- College of Science
- China University of Petroleum
- Beijing
- P. R. China
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13
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Weng X, Cao L, Zhang G, Chen F, Zhao L, Zhang Y, Gao J, Xu C. Ultradeep Hydrodesulfurization of Diesel: Mechanisms, Catalyst Design Strategies, and Challenges. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04049] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoyi Weng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Liyuan Cao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Guohao Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Feng Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Liang Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Yuhao Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Jinsen Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
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14
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Effect of Gallium and Vanadium in NiMoV/Al2O3-Ga2O3 Catalysts on Indole Hydrodenitrogenation. Catal Letters 2020. [DOI: 10.1007/s10562-020-03438-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Wang X, Xiao C, Mei J, Alabsi MH, Shi Y, Zhao Z, Duan A, Huang KW, Xu C. Structural Screening and Design of Dendritic Micro-Mesoporous Composites for Efficient Hydrodesulfurization of Dibenzothiophene and 4,6-Dimethyldibenzothiophene. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40404-40414. [PMID: 32805841 DOI: 10.1021/acsami.0c12631] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Novel dendritic micro-mesoporous TS-1/dendritic mesoporous silica nanoparticle (DMSN) composites (TD) were assembled by TS-1 nanocrystals with ultrasmall particle size and strong acidity. TS-1 seeds and DMSNs were composited via the Ti-O-Si chemical bond, which stimulate the generation of Brønsted (B) and Lewis (L) acids. The spillover d-electrons produced by the Ti element of TS-1 seeds produced a spillover of d-electrons, which could interact with the surface of MoS2 phases, thereby reducing Mo-S interactions and create sulfur vacancies that are favorable for dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT) hydrodesulfurization (HDS) reactions. The increased amount of B&L acid of NiMo/TD-2.0 with cetyltrimethylammonium bromide/sodium salicylate molar ratio of 2.0 played an important role in facilitating the hydrogenation (HYD) route of DBT HDS and the isomerization (ISO) route of 4,6-DMDBT HDS, which is more favorable for the reduction of steric hindrance of DBT and 4,6-DMDBT reactants in the HDS reaction process. The NiMo/TD-2.0 catalyst exhibited the highest turnover frequency (TOF) value and HDS reaction rate constant (kHDS) of DBT and 4,6-DMDBT due to its ultrasmall particle size, uniform spherical dendritic morphology, strong B&L acidity, and good stacking degree.
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Affiliation(s)
- Xilong Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Chengkun Xiao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
| | - Jinlin Mei
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
| | - Mohnnad H Alabsi
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Yu Shi
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
| | - Aijun Duan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, P. R. China
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16
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Tailoring NiMoS active phases with high hydrodesulfurization activity through facilely synthesized supports with tunable mesostructure and morphology. J Catal 2020. [DOI: 10.1016/j.jcat.2020.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Shi Y, Wang G, Mei J, Xiao C, Hu D, Wang A, Song Y, Ni Y, Jiang G, Duan A. The Influence of Pore Structure and Acidity on the Hydrodesulfurization of Dibenzothiophene over NiMo-Supported Catalysts. ACS OMEGA 2020; 5:15576-15585. [PMID: 32637833 PMCID: PMC7331072 DOI: 10.1021/acsomega.0c01783] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
A series of mesoporous materials of SBA-16 were in situ incorporated into ZSM-5 crystallites via a two-step self-assemble method, and hydrodesulfurization (HDS) catalysts were prepared on the corresponding ZSM-5/SBA-16 (ZS) composites. The characterization results indicated that ZSM-5 nanoseeds were fabricated into the silica framework of the ZS composites, and the three-dimensional Im3m cubic structure of SBA-16 was retained simultaneously. In addition, the ZS series materials possessed open pores and large surfaces, which would facilitate the diffusion of reactants in the mesoporous channels. Moreover, the introduction of ZSM-5 seeds into composites could enhance the acidities of supports. As a result, the NiMo/ZS series catalysts exhibited high activities for DBT HDS processes. The NiMo/ZS-160 catalyst exhibited the highest catalytic efficiency (96.5%), which was apparently attributed to the synergistic contributions of the physicochemical properties of ZS supports and the dispersion states of active metals. Correspondingly, DBT HDS reactions over the NiMo/ZS series catalysts mainly proceeded via a hydrogenation desulfurization route that benefitted from the enhanced acidities especially the total Brønsted acid.
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18
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Wang X, Xiao C, Zheng P, Zhao Z, Alabsi MH, Shi Y, Gao D, Duan A, Huang KW, Xu C. Dendritic micro–mesoporous composites with center-radial pores assembled by TS-1 nanocrystals to enhance hydrodesulfurization activity of dibenzothiophene and 4,6-dimethyldibenzothiophene. J Catal 2020. [DOI: 10.1016/j.jcat.2020.02.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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