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题名: Catalytic performance of chloromethane transformation for light olefins production over SAPO-34 with different Si content
作者: Wei, Yingxu;  Zhang, Dazhi;  He, Yanli;  Xu, Lei;  Yang, Yue;  Su, Bao-Lian;  Liu, Zhongmin
通讯作者: 刘中民
关键词: chloromethane ;  light olefins ;  SAPO-34 ;  Si incorporation
刊名: CATALYSIS LETTERS
发表日期: 2007-03-01
DOI: 10.1007/s10562-007-9038-4
卷: 114, 期:1-2, 页:30-35
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 803
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: SAPO-34s with low and high Si content were synthesized and characterized by XRD, XRF, NMR, FTIR and TG-DSC. Different Si content generated no apparent difference in XRD patterns and P-31 and Al-27 MAS NMR spectra. The Si coordination states studied by Si-29 MAS NMR predicted the acidity difference caused by Si incorporation. The absorbance of bridge hydroxyls in FTIR spectra also showed the amount of active sites differed with Si content. Both of the two samples were employed as catalysts in the transformation of chloromethane to light olefins and proved to be very selective catalysts for light olefins production. The influences of Si content on chloromethane conversion and product selectivity were investigated in details. Coke amount and coke species were determined by TG-DSC and FTIR. Coke formation was related to the Si content of SAPO-34 and corresponded to the catalytic performance.
关键词[WOS]: SURFACE METHOXY GROUPS ;  BRONSTED ACID SITES ;  ZEOLITE CATALYSTS ;  MOLECULAR-SIEVES ;  SILICON INCORPORATION ;  HIGHER HYDROCARBONS ;  ORGANIC IMPURITIES ;  METHYL HALIDE ;  CONVERSION ;  METHANOL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000246082900005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98603
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, Appl Catalysis Lab, Dalian 116023, Peoples R China
2.Univ Namur FUNDP, ISIS, Lab Chim Mat Inorgan, B-5000 Namur, Belgium

Recommended Citation:
Wei, Yingxu,Zhang, Dazhi,He, Yanli,et al. Catalytic performance of chloromethane transformation for light olefins production over SAPO-34 with different Si content[J]. CATALYSIS LETTERS,2007,114(1-2):30-35.
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