低共熔溶剂萃取脱除柴油馏分中的氮化物  

Extractive removal of nitrogen compounds from diesel fraction with deep eutectic solvent

作　　者：李龙飞 李文深[1] 王金月 刘洁[1] LI Longfei;LI Wenshen;WANG Jinyue;LIU Jie(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China;School of Innovation and Entrepreneurship,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,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

出　　处：《石油化工》2023年第2期194-198,共5页Petrochemical Technology

基　　金：辽宁石油化工大学大学生创新创业训练项目(X202210148134)。

摘　　要：以己内酰胺(CPL)、丙二酸(MOA)为原料合成了一种新型低共熔溶剂CPL-MOA,利用FTIR对CPL-MOA的结构进行了表征,并分别采用含吲哚或喹啉的模型柴油及焦化柴油考察了它的萃取脱氮性能,以及不同工艺条件对脱氮性能的影响。实验结果表明,CPL-MOA脱除碱性氮喹啉的性能优于非碱性氮吲哚。在萃取时间30 min、萃取温度40℃、剂油质量比1∶3的条件下,CPL-MOA对焦化柴油中的碱性氮的脱除率为97.7%,且重复使用4次后,碱性氨脱除率为73.2%。Using caprolactam(CPL)and malonic acid(MOA)as raw material,a novel deep eutectic solvent(DES)CPL-MOA was synthesized,and characterized by FTIR.The extractive denitrogenation capability of CPL-MOA was evaluated by using quinoline-or indole-containing model oil and actual coker diesel.In addition,the effects of different processing conditions on denitrogenation were also investigated.Experimental results show that CPL-MOA presented better removal capability to quinoline with basic nitrogen than indole with non-basic nitrogen.Under the conditions of extraction time 30 min,extraction temperature 40℃and DES-oil mass ratio 1∶3,the removal rate of basic nitrogen from coker diesel by CPL-MOA can reach 97.7%,and can still reach 73.2%after CPL-MOA reused for 4 times.

关 键 词：低共熔溶剂 己内酰胺-丙二酸 脱氮 喹啉 吲哚 焦化柴油 

分 类 号：TE624.5[石油与天然气工程—油气加工工程]