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Citation
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HERO ID
4812591
Reference Type
Journal Article
Title
Carbonization of Ethylenediamine Coimpregnated CoMo/Al2O3 Catalysts Sulfided by Organic Sulfiding Agent
Author(s)
Ge, Hui; Wen, XD; Ramos, MA; Chianelli, RR; Wang, S; Wane, J; Qin, Z; Lyu, Z; Li, X
Year
2014
Volume
4
Issue
8
Page Numbers
2556-2565
DOI
10.1021/cs500477x
Web of Science Id
WOS:000339983800018
Abstract
A Coimpregnating binary cobalt/molybdenum/alumina (CoMo/Al2O3) catalyst with adding ethylenediamine was studied for carbonization, sulfidation, and hydrodesulfurization using experimental methods. In order to understand the mechanism of carburization of active phases, theoretical CoMo/Carbon models were produced using density functional theory (DFT) method. The results from carbonization of the organic component indicate that the formation of support-like carbon species provokes dispersion of active particles and reduces interaction with support at the active sites (Co, Mo), thus enhancing the HDS activity. Theoretical results from DFT show that carbide-like Co-Mo-C structures are more stable, which can be formed by a simultaneous carburization and sulfidation at an unsaturated S or Mo edge of a (Co)MoSx slab with CH3SSCH3 as both carbon and sulfur source.
Keywords
carbonization; hydrodesulfurization; molybdenum; cobalt; ethylenediamine
Tags
IRIS
•
Cobalt
LitSearch: January 2008 - August 2018
WoS
•
Molybdenum
Litsearch 2018
WOS
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