离子液体中过氧钼酸盐催化燃油深度氧化脱硫

doi:10.16085/j.issn.1000-6613.2016.10.027

化工进展 ›› 2016, Vol. 35 ›› Issue (10): 3207-3211.DOI: 10.16085/j.issn.1000-6613.2016.10.027

离子液体中过氧钼酸盐催化燃油深度氧化脱硫

夏鸣^1,2, 张卫东³, 王猛³, 李俊³, 臧树良^1,3

1 中国石油大学(华东)化学工程学院, 山东青岛 266580;
2 沈阳航空航天大学理学院, 辽宁沈阳 110136;
3 辽宁大学化学院稀散元素化学研究所, 辽宁沈阳 110036

收稿日期:2016-01-13 修回日期:2016-05-19 出版日期:2016-10-05 发布日期:2016-10-05
通讯作者: 臧树良,教授,博士生导师。E-mail:evamingming@126.com
作者简介:夏鸣(1983-),女,博士研究生。
基金资助:
国家自然科学基金（21471073，21373005）及辽宁省重点实验室项目（LZ2014001）及辽宁百千万人才项目（2014）。

Deep oxidative desulfurization of fuels using peroxomolybdate as a catalyst in ionic liquids

XIA Ming^1,2, ZHANG Weidong³, WANG Meng³, LI Jun³, ZANG Shuliang^1,3

1 College of Chemical Engineering, China University of Petroleum, Qingdao 266580, Shandong, China;
2 Science School, Shenyang Aerospace University, Shenyang 110136, Liaoning, China;
3 Institute of Rare and Scattered Elements Chemisty, Liaoning University, Shenyang 110036, Liaoning, China

Received:2016-01-13 Revised:2016-05-19 Online:2016-10-05 Published:2016-10-05

摘要/Abstract

摘要： 以过氧化氢为氧化剂，[Omim]PF₆离子液体为萃取剂，[C₁₆mim]₂ Mo₂O₁₁为催化剂建立了萃取催化氧化脱硫体系（ECODS）。该反应体系在非常温和的条件下可使DBT的脱除率最高达到99.4%，大大优于单纯的萃取脱硫和萃取氧化脱硫体系。不同硫化物在该体系下的脱硫效果为：DBT >BT >TH。催化体系循环使用10次后催化反应活性未见明显下降。将此催化体系直接用于市售的汽油和柴油，可使其中硫含量降低至12.70mg/L和11.62mg/L。

关键词: 过氧钼酸盐, 氧化脱硫, 离子液体, 催化, 萃取, 过氧化氢

Abstract: The oxidation of aromatic sulfur compounds(dibenzothiophene[DBT],benzothiophene[BT] and thiophene[TH])was studied at 30℃ and in an extraction and catalytic oxidation desulfurization(ECODS) system composed of model oil,hydrogen peroxide,1-octyl-3-methylimidazolium hexafluorophosphate ([Omim]PF₆) and a peroxomolybdate catalyst[C₁₆mim]₂ Mo₂O₁₁(C₁₆mim=1-hexadecy-3-methylimidazolium). In this system,the removal rate of DBT could reach as high as 99.4% under mild conditions,which was superior to that of the simple chemical oxidation or extraction combined chemical oxidation. The catalytic oxidation reactivity of the different substrates decreased in the order:DBT>BT>TH. The catalytic system could be recycled ten times without a significant decrease in catalytic activity. The system was also applied to commercial gasoline and diesel oil,and the resulting sulfur content decreased to 12.7mg/L and 11.6mg/L,respectively.

Key words: peroxomolybdate, oxidative desulfurization, ionic liquid, catalysis, extraction, hydrogen peroxide

中图分类号:

夏鸣, 张卫东, 王猛, 李俊, 臧树良. 离子液体中过氧钼酸盐催化燃油深度氧化脱硫[J]. 化工进展, 2016, 35(10): 3207-3211.

XIA Ming, ZHANG Weidong, WANG Meng, LI Jun, ZANG Shuliang. Deep oxidative desulfurization of fuels using peroxomolybdate as a catalyst in ionic liquids[J]. Chemical Industry and Engineering Progree, 2016, 35(10): 3207-3211.

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离子液体中过氧钼酸盐催化燃油深度氧化脱硫

Deep oxidative desulfurization of fuels using peroxomolybdate as a catalyst in ionic liquids

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