Other

Musa I Rustamov

Vagab S Aliev

By Amina Ismailov, Administrator

Khagigat I Abad-Zade

Azada D Guseinova

By Zhanna Kulieva, Administrator

Rustam Gadzhi Ismailova, Deceased

By Dzhulietta Ismailova, Administrator

Georgy G Markarian

Evgeny I Pryanikov

By Ali Ismailova, Administrator

A method for producing fractions of paraffin hydrocarbons of the C.sub.4 -C.sub.7 isostructure, residing in hydroisomerization of a gasoline fraction in the presence of hydrogen on a catalyst at a temperature of 320.degree.-400.degree. C., under a pressure of 20 to 60 atm., a space rate of feeding the gasoline fraction of 1.0-1.5 hour.sup.-1 ; used as a gasoline fraction being a straight run gasoline fraction boiling out within a temperature range of 85.degree.-160.degree. C. or 160.degree.-195.degree. C., or a gasoline fraction of the coking process, boiling out within a temperature range of 35.degree.-85.degree. C. or 43.degree.-170.degree. C.; the above catalyst comprising amorphous nickelalumosilicate and zeolite of the NaY type in the NiCaHY form, in a weight ratio of 60-90:40-10, respectively, the chemical composition of the catalyst being as follows (wt.%): Ni, 7-10; Al.sub.2 O.sub.3, 5-6; SiO.sub.2, 86-80; Ca, 1-2; H, 1-2. The target product obtained has a high octane number, up to 89-90 according to the motor method in a pure form. The method is carried out under relatively mild conditions. It allows utilization of available, easily accessible low-octane gasoline fractions.

Hydroisomerization of gasoline fraction

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

Growing community of inventors

Baku, undefined

Musa I Rustamov