Modification of nanocrystalline HZSM-5 zeolite with tetrapropylammonium hydroxide and its catalytic performance in methanol to gasoline reaction

	Modification of nanocrystalline HZSM-5 zeolite with tetrapropylammonium hydroxide and its catalytic performance in methanol to gasoline reaction
	He Yingping 1; Liu Min 1; Dai Chengyi 1; Xu Shutao 2; Wei Yingxu 2; Liu Zhongmin 2; Guo Xinwen 1
刊名	chinese journal of catalysis
	2013-06-01
卷号	34 期号:6 页码:1148-1158
关键词	Nanocrystalline HZSM-5 Zeolite Tetrapropylammonium hydroxide Methanol to gasoline
通讯作者	liu min ; guo xinwen
产权排序	待补充
合作状况	英
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.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	naoh
收录类别	SCI
资助信息	2，4
原文出处	1158
语种	英语
WOS记录号	WOS:000320747400012
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119080]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式 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.