Removal of Nitrogen Compounds from Fuels by Deep Eutectic Solvent Based on 1-Butyl-3-Methylimidazolium Bromide and Dicarboxylic Acids  

作　　者：Li Wenshen Liu Jie 

机构地区：[1]School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2024年第3期93-101,共9页中国炼油与石油化工（英文版）

基　　金：The authors are grateful for financial support from the Doctoral Research Funds of Liaoning Petrochemical University(2019×JJ-006).

摘　　要：1-Butyl-3-methylimidazolium bromide-based ([Bmim]Br-based) deep eutectic solvents (DESs) can be used aseffective extractants for removing nitrogen compounds from fuel oil. Among the DESs studied, the combination of [Bmim]Brand malonic acid (MA) in a 1:1 molar ratio demonstrated good performance for the removal of both basic and non-basic Ncompounds. The DES [Bmim]Br-MA exhibited extraction efficiencies of 98.4% for quinoline and 92.9% for indole after 30min at 30 ℃ with a DES/oil mass ratio of 1/7. Moreover, the extraction efficiencies remained high at 86.4% for quinolineand 85.9% for indole after recycling the DES four times.. In addition, the DES [Bmim]Br-MA could effectively removeN compounds from Fushun shale diesel oil, with extraction efficiencies of 83.5% for total nitrogen and 89.9% for basicnitrogen at a DES/oil mass ratio of 1/1.

关 键 词：[Bmim]Br-based DES denitrogenation QUINOLINE INDOLE diesel oil 

分 类 号：TE624.5[石油与天然气工程—油气加工工程]