The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 1979
Filed:
May. 19, 1978
Musa I Rustamov, Baku, SU;
Vagab S Aliev, Baku, SU;
Khagigat I Abad-Zade, Baku, SU;
Azada D Guseinova, Baku, SU;
Other;
Abstract
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.