Diesel HDS performance of alumina supported CoMoP catalysts modified by sulfone molecules produced by ODS process

被引：19
作者：
Hamiye, R. [1 ,2 ]
Lancelot, C. [1 ]
Blanchard, P. [1 ]
Toufaily, J. [2 ]
Hamieh, T. [2 ]
Lamonier, C. [1 ]
机构：
[1] Univ Lille, Univ Artois, ENSCL, CNRS,Cent Lille,UMR 8181,UCCS, F-59000 Lille, France
[2] Lebanese Univ, Fac Sci, MCEMA, Rafic Hariri Univ Campus, Hadath, Lebanon
来源：
FUEL | 2017年 / 210卷
关键词：
Hydrodesulfurization; Oxidative desulfurization; MoS2; CoMoS; Gas oil; CoMoP catalysts; Sulfones; Modifying agents; LIGHT GAS OIL; OXIDATIVE DESULFURIZATION; CITRIC-ACID; HYDRODESULFURIZATION CATALYSTS; COMO/SBA-15; CATALYSTS; OXIDIC PRECURSOR; SULFUR-COMPOUNDS; NIMO CATALYSTS; SULFIDED CO; SULFIDATION;
D O I：
10.1016/j.fuel.2017.09.025
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Oxidative desulfurization reaction (ODS) of Straight Run Gas Oil (SRGO) was carried out on a CoMoP catalyst, classically used in hydrotreatment. Optimum Co/Mo ratio for the ODS reaction was found at 0.5, which also corresponds to an optimum ratio for HDS. This catalyst allowed to oxidize sulfur compounds to more polar sulfones which can be adsorbed on the catalyst and served as modifying agent. The catalyst before and after ODS and the CoMoP catalyst modified by a commercial dibenzothiophene sulfone (DBTO2) were tested in gas oil HDS and better performances were obtained for the modified catalysts for a sulfone content of 10 wt%. This effect was attributed to the redispersion of cobalt species observed after modification, leading to more efficient promotion.
引用
收藏
页码：666 / 673
页数：8
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