Morphology-performance relation of (Co)MoS2 catalysts in the hydrodesulfurization of FCC gasoline

doi:10.1016/j.apcata.2018.02.026

	Morphology-performance relation of (Co)MoS2 catalysts in the hydrodesulfurization of FCC gasoline
	Jiang, Zongxuan 2; Zhang, Cen 1,2; Li, Ping 2; Liu, Xinyi 1,2; Liu, Tiefeng 2; Li, Can 2
刊名	APPLIED CATALYSIS A-GENERAL
	2018-04-25
卷号	556 页码:20-28
关键词	Unsupported (Co)Mos2 Hydrothermal Morphology Control Fcc Gasoline Selective Hydrodesulfurization
ISSN号	0926-860X
DOI	10.1016/j.apcata.2018.02.026
文献子类	Article
英文摘要	The morphology-performance relation is of great importance for designing a catalyst with high performance in the selective hydrodesulfurization (HDS) of fluid catalytic cracking (FCC) gasoline. Herein, we report a simple one-pot hydrothermal method to prepare the unsupported MoS2 catalysts with controlled morphology by adjusting the pH values and using different precursors. It is found that smaller MoS2 crystallites are produced when the pH value decreases in the synthetic process. With the increased MoS2 crystallite size, the HDS selectivity factor (SF) increases from 1.46 to 1.52 for non-promoted MoS2 catalysts, and from 13.96 to 19.69 for Co-promoted MoS2 catalysts. On the other hand, for MoS2 catalysts with similar stacking, the MoS2 with longer slab length exhibits improved HDS selectivity (SF from 2.90 to 2.99). These results confirm that the slab length instead of the stacking for MoS2 particles is more important to influence the HDS selectivity. Due to the fact that the corner sites could catalyze both HDS and HYD reactions while edge sites only catalyze the HDS reaction, thus increasing the edge/corner ratio by preparing (Co)MoS2 catalysts with longer MoS2 slab length is an efficient way to improve the selectivity in the selective HDS of FCC gasoline.
WOS关键词	IN-SITU DECOMPOSITION ; ACTIVE EDGE SITES ; SELECTIVE HYDRODESULFURIZATION ; HYDROTHERMAL SYNTHESIS ; HYDROTREATING CATALYSTS ; CRACKING GASOLINE ; MOS2 ; NANOSHEETS ; MODEL ; EVOLUTION
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000430780000003
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167122]
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	Jiang, Zongxuan; Li, Can
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Zongxuan,Zhang, Cen,Li, Ping,et al. Morphology-performance relation of (Co)MoS2 catalysts in the hydrodesulfurization of FCC gasoline[J]. APPLIED CATALYSIS A-GENERAL,2018,556:20-28.
APA	Jiang, Zongxuan,Zhang, Cen,Li, Ping,Liu, Xinyi,Liu, Tiefeng,&Li, Can.(2018).Morphology-performance relation of (Co)MoS2 catalysts in the hydrodesulfurization of FCC gasoline.APPLIED CATALYSIS A-GENERAL,556,20-28.
MLA	Jiang, Zongxuan,et al."Morphology-performance relation of (Co)MoS2 catalysts in the hydrodesulfurization of FCC gasoline".APPLIED CATALYSIS A-GENERAL 556(2018):20-28.