This article is devoted to the study of factors affecting the quality and yield of automotive motor gasoline at the Atyrau refinery that meets the requirements of the Euro-5 standard.

Based on the calculated data (material balance) for the units of the Atyrau refinery, which include four main processes, we obtained the following results: an increase in the productivity of the catalytic cracking unit up to 3 million tons / year (with an operating capacity of 2.4 million tons / year) contributes to an increase in the yield of gasoline by 25%; the introduction of an additional reactor for benzene hydrogenation at the light naphtha isomerization unit will reduce the benzene content in the high-octane component of motor gasoline isomerate to 1%; an increase in the productivity of the catalytic reforming unit up to 1.3 million tons / year (at an operating capacity of 1 million tons / year) will increase the reformate yield by 30% and prevent undesired processes such as the formation of coke and dry gas.