重油MIP-CGP装置加工俄罗斯原油常三线馏分

Processing third sideline atmospheric distillation fraction of Russian crude oil in heavy oil MIP-CGP unit

在中国石油大庆石化公司2.0 Mt/a重油多产异构烷烃并增产丙烯的催化裂化(MIP-CGP)装置上,进行了加工俄罗斯原油常三线馏分(以下简称常三线)催化裂化转化生产液化气和汽油的工业应用,旨在降低柴汽比。结果表明:当常三线在重油MIP-CGP装置混合加工原料中的质量占比为15.45%时,产物中干气、油浆、焦炭收率较加工常三线前依次下降了0.03,0.02,0.20个百分点;而液化气、汽油、柴油收率依次上升了0.19,0.05,0.01个百分点;常三线的裂化反应表观转化率高达81.13%,液化气、汽油的表观收率分别为25.86%,37.63%;液化气、稳定汽油、轻柴油的性质均较加工前变化不大。

In the 2.0 Mt/a heavy oil catalytic cracking process for maximizing iso-paraffins and clean gasoline and propylene(MIP-CGP)unit of Daqing Petrochemical Company of PetroChina,the industrial application of processing the third sideline fraction of atmospheric distillation of Russian crude oil(hereinafter referred to as the atmospheric third sideline)catalytic cracking conversion to produce liquefied petroleum gas and gasoline was carried out in order to reduce the ratio of diesel to gasoline.The results showed that when the mass proportion of the atmospheric third sideline reached 15.45%in the mixed processing raw materials of heavy oil MIP-CGP unit,the yields of dry gas,oil slurry and coke decreased by 0.03,0.02,0.20 percentage points respectively compared with those before processing the atmospheric third sideline.However,the yields of liquefied petroleum gas,gasoline and diesel increased by 0.19,0.05,0.01 percentage points,respectively.The apparent conversion rate of cracking reaction of the atmospheric third sideline was as high as 81.13%,and the apparent yields of liquefied petroleum gas and gasoline reached 25.86%,37.63%,respectively.The physical and chemical properties of liquefied petroleum gas,stable gasoline and light diesel did not change much compared with those before processing.