氯化胆碱∕草酸低共熔溶剂高效脱除模拟油中硫.pdf

第45卷第5期
化学工程
tol. 45 No
2017年5月
CHEMICAL ENGINEERING(CHINA)
Ma
氯化胆碱/草酸低共熔溶剂高效脱除模拟油中硫
毛春峰,赵荣祥,李秀萍
(辽宁石油化工人学1.化学化工与环境学部石油化工学院
2.化学化工与环境学部化学与材料科学学院,辽宁抚顺113001)
摘要:在100℃下,将草酸与氯化胆碱按照等物质的最混合搅拌制备氯化胆碱/草酸低共嫆猝剂(ChCL/H2(C2024)。
采用红外光譜(IR),热重(TCA)和氢普(ぐHNMR)对其结构分别进行了相关表征分析。以ChCL/I1C2O4低共熔溶
剂作为萃取剂和催化剂,过氧化氢为氧化剂氧化脱除模拟油中的二苯并噻吩。分别考察了反应温度、过氧化氢用
量以及不同含硫化合物对脱硫率的影啊。实验表明最优反应条件为5mL模拟油,1mL的 Chc/H2C204低共熔溶
剂,0.3mL的过氧化氢,反应温度为40℃,在160min的最佳反应条件下DBT的脱除率高达93.4%结果表明其
表观活化能较低。在5次循环反应以后,其脱硫效與略有降低,表明该低共熔溶剂的佐化脱硫汘性和稳定较高
关键词;低共熔溶剂;活化能;分析;二苯并噻吩;脱巯率
中图分类号;TE624文献标识码:A文章编号:1005-9954(2017)05-000640)5
DOI:10.3969/j.issn.105-9954.2017.05.002
High removal rate of sulfur in model oil by
Chcl/H C2 O, deep eutectic solvents
MAO Chun-feng, ZHAO Rong-xiang, L Xiu-ping
(1. College of Petrochemical Engineering; 2. College of Chemistry Material Science Engineering
College of Chemistry Chemical Engineering and Environmental Engineering, Liaoning University of
Petroleum Chemical Technology, Fushun 1 13001, Liaoning Province, China
Abstract: Chcl/H C,O, deep eutectic solvents(DE Ss)were formed by stirring the oxalic acid(H2 C20)and
choline chloride(Chci in accordance with the same molar amount under 100 C. The structure of them werc
naracterized by infrared analysis( R ) thermogravimetric analysis TGA and hydrogen spectrum analysis
(HNMR Dibenzothiophene(BT) n model oil was removed by using Chc/H O DESS as extractant and
ide(H, O, )as oxidant
'ature. do
and different sulfur compounds were investigated. The optimal reaction condition is 5 ml of model oil, 1 ml of
Chcl/H C,0, DESS, 0.3 ml, of H2 0
ra rate of DB in the mode oill
to 93.4% in the 160 min under the optimal reaction condition. The result show that the apparent activation energy
is pretty low, and the desulfurization rate is slightly deereased after 5 cycles. There are high catalytic activity and
itability for the DES
Key words: deep eutectic solvents; activation energy; analysis; DBT; desulfurization ralc
随着环境污染的日凎加剧,油品中硫化物燃烧油标雅
产生的SO,引起环境污染越来越严重叫,各国相继
当前,脱硫方式以加氯脱硫为主,加氡脱硫虽然
制定了一系列的法规限制硫含量的排放,例如美比较成熟,但是加氢脱硫存在一些弊端,如反应条件
和日本相继出台硫质量浓度低于10mg/L的低硫汽要求比较苛刻,同时加氢脱硫由丁空问位阻效
收稿日期;201608-16
作者简介:毛春峰(1988一),男,硕士研究生,L-mail: maochurnleny56163.c0m;赵荣栏(1971ー),男,博士,副教授,通信联系人,E-mail
zyhhzx(@126.com
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