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Synthesis of amphiphilic peroxophosphomolybdates for oxidative desulfurization of fuels in ionic liquids

Synthesis of amphiphilic peroxophosphomolybdates for oxidative desulfurization of fuels in ionic liquids
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摘要 Three amphiphilic peroxophosphomolybdates[Cmim]PMoO,[Cmim]PMoOand[Cmim]PMoOwere synthesized and characterized.These catalysts were used for extraction and catalytic oxidative desulfurization of fuel with HOas an oxidant and ionic liquid[Cmim]BFas an extractant.It was found that[Cmim]PMoOshowed the highest catalytic activity and the sulfur content could decrease to 7.5 ppm.In contrast,the desulfurization system shows very low performance without HOor ionic liquid.The detailed reaction conditions were optimized including reaction time,temperature,the dosage of HOand catalyst,and different sulfur compounds.After the reaction,the catalysts and the ionic liquid can be cycled 8 times with a little decrease in desulfurization efficiency. Three amphiphilic peroxophosphomolybdates[C_4mim]_3PMo_4O_(24),[C_8mim]_3PMo_4O_(24)and[C_(16)mim]_3PMo_4O_(24)were synthesized and characterized.These catalysts were used for extraction and catalytic oxidative desulfurization of fuel with H_2O_2as an oxidant and ionic liquid[C_4mim]BF_4as an extractant.It was found that[C_(16)mim]_3PMo_4O_(24)showed the highest catalytic activity and the sulfur content could decrease to 7.5 ppm.In contrast,the desulfurization system shows very low performance without H_2O_2or ionic liquid.The detailed reaction conditions were optimized including reaction time,temperature,the dosage of H_2O_2and catalyst,and different sulfur compounds.After the reaction,the catalysts and the ionic liquid can be cycled 8 times with a little decrease in desulfurization efficiency.
出处 《Petroleum Science》 SCIE CAS CSCD 2018年第4期890-897,共8页 石油科学(英文版)
基金 financial support from National Science and Technology Program (2017YFB0306*04-1*) the National Natural Science Foundation of China (Nos. 21506080, 21722604, 21776116) Natural Science Foundation of Jiangsu Province (No. BK20150485) the Priority Academic Program Development of Jiangsu Higher Education Institutions
关键词 Peroxophosphomolybdate Oxidative desulfurization Ionic liquid H_2O_2 Peroxophosphomolybdate Oxidative desulfurization Ionic liquid H_2O_2
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