离子液体中过氧钼酸盐催化燃油深度氧化脱硫.pdf

化
工.
进展
2016年第35卷第10期
CIIEMIICALIINDUSIRY AND ENGINEERING PROGRIESS
3207
Muvee
研究开发
离子液体中过氧钼酸盐催化燃油深度氧化脱硫
鸣2,张卫东3,王猛3,李俊,臧树良
(中国石油大学(伴东)化学工程学院,山东青岛266580:2洮阳航空航天大学理学院,辽宁況阳110136:
辽宁大学化学院稀散元素化学研究所,辽宁沈阳110036)
摘要:以过氧化氩为氧化剂,1 Omim PH6离子液体为萃取剂,C1 mim l2 MQ2O1为催化剂建立了苹取催化氧化脱
硫体系( ECODS).该反应体系在非常温和的条件下可使DBT的脱除率最高达到99.4%,大大优于单纯的卒取
脱硫和革取氧化脱硫体系。不同硫化物在该体系下的脱硫效果为:DBT>BT>mI。催化体系循环使用10次后
催化反应活性未见明显下降。将此催化体系直接用于市售的汽油和柴油,可使其中硫含量降低至12.70mg!.和
11.62mg/l。
关键词:过氧钼酸盐;氧化脱硫;离子液体;催化;萃取;过氧化氧
中图分类号:TQ517.4;O643.32
文献标志码:
文章编号:1000~-6613(2016)10-3207-05
D)OI:10.16085jis1000-6613.2016.10.027
Deep oxidative desulfurization of fuels using peroxomolybdat
catalyst In lonic llq ulds
XIA Ming", ZANG Weidong, WAN( Meng, 1 m, Zdn(i Shuliang
(College of Chemical Hngineering, China University of etroleum, Qingdao 266580, Shandong, China: Science
School, Shenyang Aerospace University, Shenyang 110136, Liaoning, China: " Institute of Rare and Scattered Elements
Chemisty, Liaoning University, Shenyang 110036, Liaoning, China)
Abstract: The oxidation of aromatic sul ur compounds(dibenzothiophene DBT], benzothiophene BT
and thiophene [ TH ) was studicd at 30 C and in an cxtraction and calalytic oxidation
desul uri/ation(ECODS system composed of model oil, hydro en peroxide, I-octyl-3-methylimidazolium
hexafluorophosphate ([Omim PF6) and a peroxomolybdate catalyst Cu6mim2 Mo, O1(Clsmim
1-hcxadccy-3-mcthylimidazolium) In this systcm, thc rcmoval ratc of DBT could reach as high
99. 4% under mild conditions, which was superior to that of the simple chemical oxidation or extraction
combined chemical oxidation. The catalylic oxidation reactivity of the different substrates decreased in
the order: DBT-BT-TH. The catalytic system could be recycled ten times without a significant
dccrcasc in catalytic activity. Thc systcm was also applicd to commcrcial gasoline and dicscl oil, and
thc resulting sulfur contcnt dccrcascd to 12.7m/L and I I. 6m/L, rcspcctivcly
Key words peroxomol ybdae: oxidative desulfurization; ionic liquid; calal ysis; extraction; hydrogen
oxide
燃油中硫化物燃烧产生的硫氧化合物会导致臭
氧分解、酸雨、气溶胶等一系列环境问题,同时也收稿日期:201601-13:修改稿日期:20160519
会造成炼油设备的腐蚀和发动机的提前老化叫。随
基金项目:国家自然科学基金(21471073,21373005)及辽宁省重点
着环保意识的增强,世界各国对于燃油中硫含量的
实验室项日(T72014001)及辽宁百千万方人オ项日(2014)
第一作者:夏鸣(1983ー),女,博士研究生。联系人:树良,教投,
标准要求也日趋严格,国五标准的出台更是对我国博上生导师。上-mailcvaminoming126.com
万方数括