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题名: Characteristics of Coke Deposition Over a SAPO-34 Catalyst in the Methanol-to-Olefins Reaction
作者: Ying, L.1;  Ye, M.2;  Cheng, Y. W.1;  Li, X.1
关键词: MTO ;  SAPO-34 ;  deactivation ;  coke species ;  active center
刊名: PETROLEUM SCIENCE AND TECHNOLOGY
发表日期: 2015
DOI: 10.1080/10916466.2015.1030081
卷: 33, 期:9, 页:984-991
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Energy & Fuels ;  Engineering, Chemical ;  Engineering, Petroleum
研究领域[WOS]: Energy & Fuels ;  Engineering
英文摘要: The deactivation of SAPO-34 catalyst in the methanol-to-olefins process has been studied at temperatures of 400 to 475 degrees C. The catalyst activity keeps stable before a rapid deactivation occurs at a critical coke content. The analysis of retained coke species showed that methylbenzenes were the most abundant species at lower temperatures (400 degrees C and 425 degrees C), while polycyclic aromatics became the dominant species at 475 degrees C. The growth in the retained coke species with increasing temperature comes from the enhanced reactivity of methylbenzenes and methylnaphthalenes at high reaction temperature, where methylnaphthalenes may function as another active reaction centers.
关键词[WOS]: REACTION CENTERS ;  CONVERSION ;  H-SAPO-34 ;  HSAPO-34
语种: 英语
WOS记录号: WOS:000357696800004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146382
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.Zhejiang Univ, Dept Chem & Biochem Engn, Hangzhou 310027, Zhejiang, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Liaoning, Peoples R China

Recommended Citation:
Ying, L.,Ye, M.,Cheng, Y. W.,et al. Characteristics of Coke Deposition Over a SAPO-34 Catalyst in the Methanol-to-Olefins Reaction[J]. PETROLEUM SCIENCE AND TECHNOLOGY,2015,33(9):984-991.
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