Low-temperature and low-pressure fuel hydrodesulfurization by solid catalyst coupling with ionic liquids

被引:27
|
作者
Dai, Fei [1 ,2 ]
Muhammad, Yaseen [1 ]
Gong, Xue [1 ]
Li, Chunshan [1 ]
Li, Zengxi [2 ]
Zhang, Suojiang [1 ]
机构
[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
Hydrodesulfurization; Solid catalyst; Ionic liquid; Low-temperature and low-pressure; OXIDATIVE DESULFURIZATION; DEEP DESULFURIZATION; DIESEL FUEL; EXTRACTIVE DESULFURIZATION; DIBENZOTHIOPHENE; ADSORPTION; PEROXIDE; ACID;
D O I
10.1016/j.fuel.2014.05.027
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
A new process for fuels hydrodesulfurization (HDS) utilizing solid catalyst coupled with ionic liquids (Is) at mild operating conditions is proposed in this study. A novel Ce-Ni-Mo/gamma-Al2O3 catalyst with high catalytic activity was developed and coupled with different ILs i.e. (1-Butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4), 1-butyl-2,3-dimethylimidazolium tetrafluoroborate ([BDMIM]BF4), 1-ethyl-3-methyl imidazolium tetrafluoroborate ([EMIM]BF4), and 1-butyl-3-methylimidazolium chloride salt ([BMIM]Cl)) to investigate the removal of Sulfur (S) from dibenzothiophene (DBT) used as model oil. Then the highly efficient IL [BMIM]BF4, coupled with the solid catalyst was selected to undergo a series of parallel experiments to investigate the effects of temperature, hydrogen pressure and IL/oil mass ratio toward S removal. Moreover, the IL system could be recycled four times without a significant decrease in desulfurization activity. The supposed mechanism of HDS reaction was also explained. This study can be deemed as new approach for getting cleaner fuels based on the complementary usage of ILs with solid catalysts at mild operating conditions. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:74 / 80
页数:7
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