Patent ID: 7550074

Claim:
A process for preparing a decolorized, liquid gasoline product comprising a gasoline detergent additive, which process comprises: (a) blending appropriate components from processing and purification processes together to prepare an untreated liquid gasoline having a final boiling point of less than 200° C., a Reid Vapor Pressure of 30 to 110 kPa and a Saybolt color rating of less than 10; (b) contacting the untreated liquid gasoline as a whole with a decolorizing, activated carbon to form a decolorized gasoline having a Saybolt color rating of greater than 20; and (c) adding a gasoline detergent additive to said decolorized gasoline to form a decolorized liquid gasoline product which in use in a spark ignition engine produces reduced inlet manifold deposits.