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Rustam Gadzhi Ismailova, Deceased

Vagab S Aliev

Musa I Rustamov

By Zhanna Kulieva, Administrator

Georgy G Markarian

By Amina Ismailov, Administrator

Evgeny I Pryanikov

By Dzhulietta Ismailova, Administrator

By Ali Ismailova, Administrator

A process for producing gasoline which comprises cracking of a heavy petroleum feedstock in the presence of an alumino-silicate zeolite-containing catalyst maintained in a condition of an ascending flow at a temperature ranging from 480.degree. to 520.degree. C. and a mass velocity of said feedstock of from 6 to 40 hr.sup.-1 in the direction of said ascending flow with the formation of a reaction mixture containing gasoline, a fraction with a specific gravity of from 0.75 to 0.85 and a fraction with a specific gravity of from 0.85 to 0.95; the resulting reaction mixture is isolated from the catalyst and subjected to separation; said separated fractions are employed as recycle. The fraction with a specific gravity of from 0.75 to 0.85 is subjected to cracking in the presence of said catalyst which is in a condition of an ascending flow at a temperature of from 460.degree. to 520.degree. C. and a mass velocity of said fraction of from 6 to 40 hr.sup.-1 in the direction of said ascending flow. As a result of said cracking a reaction mixture is formed containing gasoline. The reaction mixture is separated from the catalyst and gasoline is recovered therefrom; the fraction with a specific gravity of from 0.85 to 0.95 is subjected to cracking in the presence of said catalyst which is in a condition of an ascending flow at a temperature of from 460.degree. to 520.degree. C. and at a mass velocity of this fraction selected within the range of from 5 to 8 hr.sup.-1 with the formation of a reaction mixture containing gasoline and a fraction with a specific gravity of 0.85 to 0.95; said latter reaction mixture is combined with the reaction mixture obtained from said cracking of a heavy petroleum feedstock and delivered, after separation from the catalyst, to the recovery of gasoline.

Process for producing gasoline

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Rustam Gadzhi Ismailova, Deceased