催化裂化汽油中类型硫含量分布

摘要

利用催化裂化汽油中各类硫化物的系统分析方法，对催化裂化（FCC）汽油和重油催化裂化（RFCC）汽油中各类型硫进行了分析测定。碱洗后FCC汽油和RFCC汽油中类型硫的分布规律为：硫醇硫和二硫化物硫的含量较少，硫醚硫含量中等，而噻吩类硫的含量最多，占总硫含量的60%以上。%A developed systematic method for the determination of sulfur compounds in light petroleum fractions and gasoline has been used to analyze the distribution of different sulfur compounds in FCC and RFCC gasoline. The distributions of sulfur in caustic washed Fluid Catalytic Cracking (FCC) gasoline and Residue Fluid Catalytic Cracking (RFCC) gasoline were found that the varieties of sulfur compounds in both kinds of gasoline are alike, the contents of mercaptan sulfur and disulfide sulfur are low, of the sulfide sulfur is in the middle and the most of sulfur in gasoline is thiophenic sulfur which is over 60 percent of the total sulfur. The only difference of sulfur distribution between FCC and RFCC gasoline is that the content of thiophenic sulfur in RFCC gasoline is higher than that in FCC gasoline, which almost accounts for 70 percent of the total sulfur.