摘要
采用旋转带蒸馏仪对国内某炼油厂预加氢后催化汽油进行窄馏分切割,分析各窄馏分硫和烯烃分布规律,为全馏分催化汽油分馏提供精确的切割方案。实验结果表明,通过将切割轻汽油总硫含量控制在指标要求上限,最大量将烯烃切入轻汽油中,降低重汽油烯烃含量,可减少在加氢脱硫过程中由于烯烃饱和导致的辛烷值损失。
The narrow fraction cutting of pre-hydrogenation FCC gasoline of domestic refinery was carried out by using a spinning band distillation apparatus. The distribution regularities of sulfur and olefins of each narrow fraction were analyzed. The accurate cutting scheme of full fractionation of pre-hydrogenation FCC gasoline was provided. The experimental results showed that in order to reduce the contents of olefins in heavy gasoline and octane number loss due to olefins saturation,the total sulfur content of cutting gasoline could be controlled at the upper limit of sulfur index and the maximum amount of olefins was cut into light gasoline during the process of hydrodesulfurization.
出处
《工业催化》
CAS
2016年第5期70-74,共5页
Industrial Catalysis
关键词
石油化学工程
窄馏分切割
催化裂化汽油
选择性加氢脱硫
petrochemical engineering rough narrow fraction cutting FCC gasoline selective hydrogenation desulfurization
