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题名: Synthesis of ZSM-34 and its catalytic properties in methanol-to-olefins reaction
作者: Zhou Fan;  Tian Peng;  Liu Zhongmin;  Liu Guangyu;  Chang Fuxiang;  Li Jinzhe
关键词: ZSM-34 ;  molecular sieve ;  hydrothermal synthesis ;  methanol-to-olefins reaction ;  choline chloride
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2007-09-01
卷: 28, 期:9, 页:817-822
收录类别: SCI
文章类型: Article
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
英文摘要: ZSM-34 (OFF/ERI intergrowth) was synthesized using choline chloride as the template in a shorter crystallization time under hydrothermal conditions. Many factors that may influence the synthesis were investigated. The ERI content in ZSM-34 could be adjusted by selecting different synthesis conditions. The synthesized products were characterized by X-ray diffraction, scanning electron microscopy, and X-ray fluorescence spectroscopy. Adsorption experiments showed that ZSM-34 possessed high pore volume, and the adsorption amount of n-hexane reached 11.4%. In the methanol- to-olefins reaction, HZSM-34 exhibited high selectivity for ethylene. The maximum selectivity for total olefins (C2H4 + C3H6) over HZSM-34 was 86. 0 , and it nearly did not change even when the methanol conversion decreased. High- temperature steam treatment increased the framework Si/Al ratio and thus decreased the acidity of HZSM-34, which led to the obvious decrease in propane selectivity and the increase in initial olefins selectivity.
关键词[WOS]: ERIONITE TYPE ZEOLITES ;  OFFRETITE ;  CONVERSION
语种: 英语
WOS记录号: WOS:000250327900015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140731
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhou Fan,Tian Peng,Liu Zhongmin,et al. Synthesis of ZSM-34 and its catalytic properties in methanol-to-olefins reaction[J]. CHINESE JOURNAL OF CATALYSIS,2007,28(9):817-822.
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