俄罗斯直馏柴油中硫化物的分离富集与结构鉴定

Separation and Identification of Sulfur Compounds in Russia Atmospheric Gas Oil by Oxidation-Reduction Method

采用选择性氧化剂和还原剂对俄罗斯直馏柴油中的硫醚类硫化物和噻吩类硫化物分别进行分离和富集，得到两者的浓缩液。运用质谱技术对分离出的硫化物结构进行鉴定。结果表明：氧化还原法是分离俄罗斯直馏柴油中硫化物的有效方法；硫醚类硫化物浓缩液中鉴定有烷基四氢噻吩和烷基四氢噻喃类化合物，四氢噻喃类硫化合物的烷基取代碳数在C4～C13范围；噻吩类硫化物浓缩液中有烷基侧链长度为C0～C9之间的苯并噻吩，烷基侧链长度为C0～C3之间的二苯并噻吩。

Sulfur compounds in Russian atmospheric gas oil were separated into thiophene and thioether compounds by the oxidation - reduction method using selective oxidant and reducing agent. Their structures were then identified by GC - MS. The result showed that the main constituents of the concentrated solution of thioether compounds were identified to be alkyl-tetrahydrothiophene and alkyhetrahydrothiopyran with C4 - C13 carbon chain, and those of the concentrated solution of thiophene compounds were identified to be alkylbenzothiophene with C0 - C9 carbon chain and alkyldibenzothiophene with C0- C3 carbon chain. The results indicated that the oxidation - reduction method was effective on the separation of sulfur comounds.