Patent ID: 6042719
Filing Date: 2000-03-28
Classification: B01J,C10G

Abstract:
A process for reducing sulfur content of gasoline while substantially maintaining motor octane number and road octane number, comprising:contacting a catalytically cracked olefinic gasoline stream comprising organic sulfur compounds and having an initial boiling point in the gasoline boiling range, an initial sulfur content and an initial road octane number with a catalyst comprising an alumina substrate impregnated with at least one metal selected from the group consisting of Group VI metals of the Periodic Table and Group VIII metals of the Periodic Table, under a combination of a temperature of from about 300 F. to about 650 F., a space velocity of from about 0.1 to 10 LHSV and an atmosphere comprising hydrogen to convert said sulfur compounds to hydrogen sulfide;wherein hydrogen sulfide is removed from said gasoline stream to provide a gasoline havinga reduced sulfur content lower than said initial sulfur content, a less than 5% change in motor octane number from said initial motor octane number and a less than 10% change in said research octane number.