[Hnmp]H_2PO_4离子液体脱除焦化柴油中的碱性氮化物  

Removal of alkaline nitrogen containing compounds from coking diesel oil by ionic liquid [Hnmp]H_2PO_4

作　　者：李文深[1] 孟征 宋阳[3] 侯金朋 刘洁[1] LI Wen-shen MENG Zheng SONG Yang HOU Jin-peng LIU Jie(College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China School of Innovation and Entrepreneurship, Liaoning Shihua University, Fushun 113001, China No.2 Refinery, PetroChina Fushun Petrochemical Company, Fushun 113004, China)

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001 [2]辽宁石油化工大学创新创业学院,辽宁抚顺113001 [3]中国石油抚顺石化公司石油二厂,辽宁抚顺113004

出　　处：《现代化工》2017年第10期118-120,122,共4页Modern Chemical Industry

摘　　要：合成了离子液体N-甲基吡咯烷酮磷酸二氢盐([Hnmp]H_2PO_4),并用红外光谱对其结构进行表征。以焦化柴油为原料,考察其对油品中碱性氮化物的脱除性能,结果表明,离子液体[Hnmp]H_2PO_4能够有效脱除焦化柴油中的碱性氮化物,在剂油质量比为1∶7,反应温度为30℃,反应时间为30 min的条件下,焦化柴油中碱性氮化物的脱除率为93.97%,此时精制油中碱氮质量分数为35μg/g。该离子液体在回收利用4次后,脱氮率仍可达到83%以上。Acidic ionic liquid N-methyl pyrrolidone dihydrogen phosphate（[Hnmp]H2PO4） is synthesized and its structure is characterized with FT-IR spectroscopy.Its performance of removing alkaline nitrogen containing compounds in oil products is investigated by using coking diesel oil as feedstock. Experiment results show that [Hnmp]H2PO4 can efficiently remove the alkaline nitrogen containing compounds from coking diesel oil. The efficiency of removing alkaline nitrogen containing compounds achieves 93. 97% at 30℃,w（ionic liquid） ∶ w（oil） = 1 ∶7 and reaction time of 30 min.The content of alkaline nitrogen containing compounds left in refined oil is 35 μg·g^-1. In addition,the removal efficiency by the ionic liquid can still reach 83% after four recycles.

关 键 词：[Hnmp]H2PO4 离子液体 脱氮 焦化柴油 碱性氮化物 

分 类 号：TE622.1[石油与天然气工程—油气加工工程]