Hydroisomerization of gasoline fraction

Details Hydroisomerization of gasoline fraction Hydroisomerization of gasoline fraction

1978-05-19

1979-03-27

Crasanakis, George

Mineral oils: processes and products

Chemical conversion of hydrocarbons

26068365, C10G 2300, C07C 530

Patent

active

041464621

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.

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patent: 3687839 (1972-08-01), Jenkins
patent: 3766056 (1973-10-01), Young

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