催化氧化-萃取法生产低硫汽油  

Low-sulfure gasoline production by catalytic oxidation-extraction

作　　者：何柏[1] 杜川[2] 文欣 秦婧 肖黄飞[4] 冯建[1] 陈双扣[1] 

机构地区：[1]重庆科技学院化学化工学院,重庆401331 [2]中国石油天然气股份有限公司克拉玛依石化分公司,新疆克拉玛依834003 [3]重庆天然气净化厂,重庆401236 [4]西南油气田分公司天然气研究院,四川成都610213

出　　处：《应用化工》2013年第2期268-270,286,共4页Applied Chemical Industry

基　　金：重庆市自然科学基金资助(CSTC2011jjA90004)

摘　　要：以直馏汽油馏分为原料,进行催化氧化-萃取脱硫,研究了催化剂、萃取剂及反应条件对脱硫效果的影响。结果表明,最佳脱硫条件为:乙酸钴为催化剂,质量分数30%的双氧水为氧化剂,质量分数95%的乙醇为萃取剂,30 mL直馏汽油中加入乙酸钴0.01 g及双氧水0.7 mL,反应温度50℃,反应时间30 min,搅拌条件下对直馏汽油进行催化氧化,0.6的剂油比(V/V)萃取氧化后的直馏汽油,得到脱硫精制汽油,硫含量由225μg/L降至精制后的15.0μg/L,满足欧IV并接近欧V排放标准。The desulphurization of straight-run gasoline fraction was studied by catalytic oxidation-extrac- tion,the effect of catalyst, extractant and reaction condition on desulphurization consequent. The results showed that the optimum desulphurization conditions were as follows：cobalt acetate as catalyst, hydrogen peroxide of 30% mass percent as oxidant and ethanol of 95% mass percent as extractant,when treating 30 mL straight-run gasoline under the condition of catalyst dosage of 0.01 g and hydrogen peroxide 0.7 mL, reaction temperature of 50 ℃, reaction time of 30 min with stirring, an extractant to oxidized gas- oline volume ration of 0. 6 ,the sulfur content of the refined gasoline dropped from 225 μg/L to 15 μg/L which meet the requirement of Europe IV emission standard.

关 键 词：直馏汽油 脱硫 催化氧化 萃取 

分 类 号：TE624.26[石油与天然气工程—油气加工工程]