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Liu MN, Xie ZX, Luo QX, Zhang J, Chen H, Xu L, Sun M, Ma X, Hao QQ. Synthesis of Nanosized Mordenite with Enhanced Catalytic Performance in the Alkylation of Benzene with Benzyl Alcohol. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03419] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng-Nan Liu
- School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, China
| | - Zhi-Xia Xie
- 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
| | - Long Xu
- 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
| | - Ming Sun
- 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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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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Mcheik Z, Pinard L, Toufaily J, Hamieh T, Daou TJ. Synthesis of Hierarchical MOR-Type Zeolites with Improved Catalytic Properties. Molecules 2021; 26:4508. [PMID: 34361661 PMCID: PMC8347561 DOI: 10.3390/molecules26154508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 11/17/2022] Open
Abstract
Hierarchical MOR-type zeolites were synthesized in the presence of hexadecyltrimethylammonium bromide (CTAB) as a porogen agent. XRD proved that the concentration of CTAB in the synthesis medium plays an essential role in forming pure hierarchical MOR-type material. Above a CTAB concentration of 0.04 mol·L-1, amorphous materials are observed. These hierarchical mordenite possess a higher porous volume compared to its counterpart conventional micrometer crystals. Nitrogen sorption showed the presence of mesoporosity for all mordenite samples synthesized in the presence of CTAB. The creation of mesopores due to the presence of CTAB in the synthesis medium does not occur at the expense of zeolite micropores. In addition, mesoporous volume and BET surface seem to increase upon the increase of CTAB concentration in the synthesis medium. The Si/Al ratio of the zeolite framework can be increased from 5.5 to 9.1 by halving the aluminum content present in the synthesis gel. These synthesized hierarchical MOR-type zeolites possess an improved catalytic activity for n-hexane cracking compared to large zeolite crystals obtained in the absence of CTAB.
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Affiliation(s)
- Zeinab Mcheik
- Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, CNRS, University of Haute Alsace (UHA), F-68093 Mulhouse, France;
- University of Strasbourg (Unistra), F-67000 Strasbourg, France
- Institut de Chimie des Milieux et Matériaux de Poitiers, UMR 7285 CNRS, 4 Rue Michel Brunet, Bâtiment B27, CEDEX 09, 86073 Poitiers, France
- Laboratory of Materials, Catalysis, Environment and Analytical Methods Faculty of Sciences, Section I, Lebanese University Campus Rafic Hariri, Hadath, Lebanon; (J.T.); (T.H.)
| | - Ludovic Pinard
- Institut de Chimie des Milieux et Matériaux de Poitiers, UMR 7285 CNRS, 4 Rue Michel Brunet, Bâtiment B27, CEDEX 09, 86073 Poitiers, France
| | - Joumana Toufaily
- Laboratory of Materials, Catalysis, Environment and Analytical Methods Faculty of Sciences, Section I, Lebanese University Campus Rafic Hariri, Hadath, Lebanon; (J.T.); (T.H.)
| | - Tayssir Hamieh
- Laboratory of Materials, Catalysis, Environment and Analytical Methods Faculty of Sciences, Section I, Lebanese University Campus Rafic Hariri, Hadath, Lebanon; (J.T.); (T.H.)
| | - T. Jean Daou
- Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, CNRS, University of Haute Alsace (UHA), F-68093 Mulhouse, France;
- University of Strasbourg (Unistra), F-67000 Strasbourg, France
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