首页 | 官方网站   微博 | 高级检索  
     

活性炭催化氧化脱除汽油和柴油中噻吩类硫化物的选择性
引用本文:余谟鑫,姬乔娜,方媛,宋国胜,李忠.活性炭催化氧化脱除汽油和柴油中噻吩类硫化物的选择性[J].化工学报,2009,60(4):1007-1016.
作者姓名:余谟鑫  姬乔娜  方媛  宋国胜  李忠
作者单位:华南理工大学传热强化与过程节能教育部重点实验室,化学与化工学院;华南理工大学测试中心,广东 广州 510640 ;
基金项目:广东省重点基金项目(8251064101000018);;国家自然科学基金项目(20806026);;中国博士后基金项目(20080430834)~~
摘    要:研究了活性炭催化氧化脱除汽油和柴油中噻吩类硫化物的选择性。采用气相色谱-硫化学发光检测器(GC-SCD)分析了汽油和柴油中噻吩类硫化物的分布及浓度;以活性炭作为催化剂,以30%过氧化氢溶液为氧化剂,在甲酸存在条件下考察了汽油和柴油中噻吩类硫化物催化氧化脱除的选择性,讨论了硫化物中硫原子电子密度对硫化物氧化选择性的影响。结果表明:汽油中噻吩类硫化物主要有噻吩(T)及其烷基衍生物(T alkylated derivatives)和苯并噻吩(BT);而柴油中噻吩类硫化物主要分布有苯并噻吩(BT)及其烷基衍生物(BT alkylated derivatives)和二苯并噻吩(DBT)及其烷基衍生物(DBT alkylated derivatives);硫原子电子密度大于5.716的含3个C烷基噻吩(C3-T)、BT、BT alkylated derivatives、DBT 和DBT alkylated derivatives 能被催化氧化脱除,硫原子的电子密度越大,其被氧化的速率越快,被脱除的选择性也越大;被脱除选择性顺序为:DBT alkylated derivatives > DBT > BT alkylated derivatives> BT> C3-T;然而硫原子电子密度小于5.716的T,含1个烷基噻吩(C1-T)和含2个C烷基噻吩(C2-T)则不能被氧化脱除。采用此方法,能将初始硫浓度为1200 μg•g-1的柴油降低至小于10 μg•g-1,可将初始硫浓度为320 μg•g-1的汽油降低至155 μg•g-1

关 键 词:活性炭  汽油  柴油  氧化脱硫  选择性  
收稿时间:2008-11-17
修稿时间:2008-12-26  

Selectivity of oxidative desulfurization of gasoline and diesel fuel using catalytic oxidation method with activated carbon
YU Moxin,JI Qiaona,FANG Yuan,SONG Guosheng,LI Zhong.Selectivity of oxidative desulfurization of gasoline and diesel fuel using catalytic oxidation method with activated carbon[J].Journal of Chemical Industry and Engineering(China),2009,60(4):1007-1016.
Authors:YU Moxin  JI Qiaona  FANG Yuan  SONG Guosheng  LI Zhong
Affiliation:1Key Laboratory of Enhanced Heat Transfer and Energy Conservation;Ministry of Education;School of Chemical and Chemical Engineering;South China University of Technology;Guangzhou 510640;Guangdong;China;2 Analysis and Testing Center;China
Abstract:In this work, the selectivities of catalytic oxidative desulfurization of gasoline and diesel fuel were investigated.The type and concentration of thiophenic sulfur in gasoline and diesel fuel were determined separately by gas chromatography with a sulfur chemiluminescence detector (GC-SCD).With activated carbon (AC) and 30%(mass)aqueous solution of H2O2 as catalyst and oxidant respectively, the experimental studies of oxidative desulfurization of gasoline and diesel were carried out.The effect of electron ...
Keywords:activated carbon  gasoline  diesel  oxidation desulfurization  selectivity
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《化工学报》浏览原始摘要信息
点击此处可从《化工学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号