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

doi:10.1039/c8cy01392f

	Sintered precipitated iron catalysts with enhanced fragmentation-resistance ability for Fischer-Tropsch synthesis to lower olefins
	Chen, Yanping; Ni, Youming; Liu, Yong; Liu, Hongchao; Ma, Xiangang; Liu, Shiping; Zhu, Wenliang; Liu, Zhongmin
刊名	CATALYSIS SCIENCE & TECHNOLOGY
	2018-11-21
卷号	8 期号:22 页码:5943-5954
ISSN号	2044-4753
DOI	10.1039/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.
资助项目	China Postdoctoral Science Foundation[2015M571338]
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
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000450091300019
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
内容类型	期刊论文
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.