文献类型：期刊文献

中文题名：磷酸基咪唑离子液体脱除煤焦油柴油馏分中的氮化物

英文题名：Extractive denitrification of coal tar diesel fraction using phosphate-based alkylimidazolium ionic liquids

作者：苏晓琳[1];宋军[1];杨敬一[1];徐心茹[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2016

卷号：35

期号：4

起止页码：1081

中文期刊名：化工进展

外文期刊名：Chemical Industry and Engineering Progress

收录：CSTPCD;;EI(收录号：20162202440137);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

语种：中文

中文关键词：磷酸基;离子液体;煤焦油柴油馏分;脱氮

外文关键词：phosphate; ionic liquids; coal tar diesel fraction; denitrification

摘要：研究了不同磷酸基咪唑离子液体对煤焦油柴油馏分中氮化物的脱除效果。分别以磷酸酯和磷酸二氢根为阴离子合成了烷基碳链长度不同的咪唑磷酸酯和咪唑磷酸二氢盐离子液体,考察了不同条件下离子液体对煤焦油柴油馏分的脱氮效果。结果表明,酸性咪唑磷酸二氢盐离子液体脱氮效果优于咪唑磷酸酯离子液体,1-丁基-3-甲基咪唑磷酸二氢盐([BMim]H2PO4)离子液体的脱氮效果最佳。在剂油质量比为0.2、反应温度为40℃、反应时间和静置时间均为30min的条件下,[BMim]H2PO4对煤焦油柴油馏分的脱氮率为92.3%,循环使用5次后仍具有稳定的脱氮效果。
Two series phosphate-based alkylimidazolium ionic liquids（ILs）,dialkyl and dihydrogen phosphate alkylimidazolium ILs were prepared and used to remove nitrogen compounds in the coal tar diesel fraction by extraction. The denitrification effect were studied under different conditions. The results indicate that dihydrogen phosphate alkylimidazolium ILs have a higher denitrification rate for both basic and non-basic nitrogen compounds than dialkyl phosphate alkylimidazolium ILs due to the complexation. The best denitrification rate can reach 92.3% using 1-butyl-3-methylimidazolium dihydrogen phosphate（[BMim]H2PO4） ILs as the extraction agent under the optimum conditions,with which the mass ratio of ILs to oil is 0.2,temperature is 40℃,reaction and stratification time are both 30 min. [BMim]H2PO4 ILs performed stably in nitrogen removal of coal tar diesel fraction,and the denitrification rate remained almost no change even after five times reuse.