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Sintered precipitated iron catalysts with enhanced fragmentation-resistance ability for Fischer-Tropsch synthesis to lower olefins

文献类型：期刊论文

作者Chen, Yanping; Ni, Youming; Liu, Yong; Liu, Hongchao; Ma, Xiangang; Liu, Shiping; Zhu, Wenliang; Liu, Zhongmin
刊名CATALYSIS SCIENCE & TECHNOLOGY
出版日期2018-11-21
卷号8期号:22页码:5943-5954
ISSN号2044-4753
DOI10.1039/c8cy01392f
通讯作者Zhu, Wenliang(wlzhu@dicp.ac.cn) ; Liu, Zhongmin(liuzm@dicp.ac.cn)
英文摘要Commercial precipitated iron catalysts suffer from severe fragmentation when applied in the Fischer-Tropsch to lower olefins reaction (FTO). Herein, sintered precipitated iron catalysts for FTO are prepared by varying the calcination temperature from 800 to 1400 degrees C to enhance their fragmentation-resistance ability. Compared with traditional precipitated iron catalysts, sintered precipitated iron catalysts require higher reduction temperatures to maintain high and stable activity and shift the production of hydrocarbons towards lower olefins. Spent sintered precipitated iron catalysts show bulk morphologies with less fragmentation than the fragmented and aggregated morphologies of spent traditional precipitated iron catalysts. The amount of coke inside the spent catalysts decreases from 41.8 to 12.5% as the calcination temperature increases from 500 to 1200 degrees C, and simultaneously, the chain length of soluble coke decreases from C-32 to C-21. The lower amount of coke and shorter chain length of soluble coke of the sintered precipitated iron catalysts come from the stronger mechanical strength-induced less space for coke accumulation during FTO, which further enhance the fragmentation-resistance ability of the catalysts.
WOS关键词LOW-TEMPERATURE REDUCTION ; PROMOTED FE CATALYSTS ; MANGANESE CATALYST ; PHASE-TRANSFORMATION ; CO HYDROGENATION ; PARTICLE-SIZE ; SYNTHESIS GAS ; SELECTIVE CONVERSION ; POTASSIUM PROMOTION ; OXIDE CATALYSTS
资助项目China Postdoctoral Science Foundation[2015M571338]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000450091300019
出版者ROYAL SOC CHEMISTRY
资助机构China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://cas-ir.dicp.ac.cn/handle/321008/166696]  
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
通讯作者Zhu, Wenliang; Liu, Zhongmin
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Yanping,Ni, Youming,Liu, Yong,et al. Sintered precipitated iron catalysts with enhanced fragmentation-resistance ability for Fischer-Tropsch synthesis to lower olefins[J]. CATALYSIS SCIENCE & TECHNOLOGY,2018,8(22):5943-5954.
APA Chen, Yanping.,Ni, Youming.,Liu, Yong.,Liu, Hongchao.,Ma, Xiangang.,...&Liu, Zhongmin.(2018).Sintered precipitated iron catalysts with enhanced fragmentation-resistance ability for Fischer-Tropsch synthesis to lower olefins.CATALYSIS SCIENCE & TECHNOLOGY,8(22),5943-5954.
MLA Chen, Yanping,et al."Sintered precipitated iron catalysts with enhanced fragmentation-resistance ability for Fischer-Tropsch synthesis to lower olefins".CATALYSIS SCIENCE & TECHNOLOGY 8.22(2018):5943-5954.

入库方式： OAI收割

来源：大连化学物理研究所

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