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学科主题物理化学
Modification of nanocrystalline HZSM-5 zeolite with tetrapropylammonium hydroxide and its catalytic performance in methanol to gasoline reaction
He Yingping1; Liu Min1; Dai Chengyi1; Xu Shutao2; Wei Yingxu2; Liu Zhongmin2; Guo Xinwen1
关键词Nanocrystalline Hzsm-5 Zeolite Tetrapropylammonium Hydroxide Methanol To Gasoline
刊名CHINESE JOURNAL OF CATALYSIS
2013-06-01
DOI10.1016/S1872-2067(12)60579-8
34期:6页:1148-1158
收录类别SCI
合作性质
文章类型Article
部门归属DNL12
项目归属DNL1201
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者2,4 ; 2,4 ; 2,4 ; 2,4
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]NAOH
英文摘要Nanocrystalline ZSM-5 zeolite was modified with tetrapropylammonium hydroxide (TPAOH) solution. The effect of the TPAOH treatment time on the catalytic performance of HZSM-5 was investigated in methanol to gasoline (MTG) reaction. The modified samples were characterized using X-ray diffraction, scanning electron microscopy, Al-27 and Si-29 magic-angle spinning nuclear magnetic resonance spectroscopy, X-ray photoelectron spectroscopy, N-2 adsorption, and NH3 temperature-programmed desorption. The HZSM-5 structure was basically unchanged after modification, but the relative crystallinity increased and the crystal morphology was more regular. The Brunauer-Emmett-Teller surface area, the micropore surface area, the surface Si/Al ratio, and the amount of strong acid sites increased; this might be caused by desilication and dealumination, and secondary crystallization of the zeolite during the treatment. The stability of the catalyst was significantly improved after modification, as reflected by the increased lifetime from 70 h to above 170 h in MTG reaction. The catalyst lifetime increased with increasing TPAOH treatment time. Hydrogen transfer reactions became faster and led to more isoparaffins and less olefins in the liquid products. (c) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
语种英语
资助者2,4 ; 2,4 ; 2,4 ; 2,4
原文出处查看原文
WOS记录号WOS:000320747400012
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119080
专题中国科学院大连化学物理研究所
通讯作者Liu Min; Guo Xinwen
作者单位1.Dalian Univ Technol, Sch Chem Engn, Dept Catalysis Chem & Engn, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
2.Dalian Univ Technol, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
He Yingping,Liu Min,Dai Chengyi,et al. Modification of nanocrystalline HZSM-5 zeolite with tetrapropylammonium hydroxide and its catalytic performance in methanol to gasoline reaction[J]. CHINESE JOURNAL OF CATALYSIS,2013,34(6):1148-1158.
APA He Yingping.,Liu Min.,Dai Chengyi.,Xu Shutao.,Wei Yingxu.,...&Guo Xinwen.(2013).Modification of nanocrystalline HZSM-5 zeolite with tetrapropylammonium hydroxide and its catalytic performance in methanol to gasoline reaction.CHINESE JOURNAL OF CATALYSIS,34(6),1148-1158.
MLA He Yingping,et al."Modification of nanocrystalline HZSM-5 zeolite with tetrapropylammonium hydroxide and its catalytic performance in methanol to gasoline reaction".CHINESE JOURNAL OF CATALYSIS 34.6(2013):1148-1158.
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