A novel [Bmim]PW/HMS catalyst with high catalytic performance for the oxidative desulfurization process

作者：Tang, Ling; Luo, Guangqing; Kang, Lihua; Zhu, Mingyuan^*; Dai, Bin

来源：Korean Journal of Chemical Engineering, 2013, 30(2): 314-320.

DOI：10.1007/s11814-012-0182-1

• [Bmim]PW/HMS
• Catalytic Oxidation Desulfurization
• Dibenzothiophene

To effectively reduce the sulfur content in model fuel, [Bmim]PW/HMS catalyst was synthesized through impregnating the hexagonal mesoporous silica (HMS) support by phosphotungstic acid (HPW) and ionic liquid [Bmim] HSO4. Physical structure characterizations of the catalysts showed that HMS retained mesoporous structure, and [Bmim] PW was well dispersed on the support of HMS. The catalytic activity of the [Bmim]PW/HMS was evaluated in the oxidative desulfurization process, and the optimal reaction conditions including loading of the catalysts, reaction temperature, catalyst amount, O/S (H2O2/sulfur) molar ratio and agitation speed were investigated. Under the optimal reaction conditions, the conversion of benzothiophene (BT), dibenzothiophene (DBT) and 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) could reach 79%, 98%, 88%, respectively.

• 出版日期2013-2
• 单位石河子大学