Shell Oil Comapny

Gregory V Tonks

Ian E Maxwell

Anne E Verstappen Declercq

Gerrit J Otter

Process for producing gasoline components from a hydrocarbonaceous feed containing hydrocarbons comprising at least 4 carbon atoms, and hydrocarbons obtained thereby. The process comprises: a. separating feed into a heavy fraction containing hydrocarbons comprising at least 7 carbon atoms and a light fraction containing hydrocarbons comprising at most 7 carbon atoms, b. isomerizing at least part of the light fraction at a temperature between 50.degree. and 300.degree. C., c. separating effluent of step b) into a stream containing branched hydrocarbons and a stream containing normal hydrocarbons, and d. isomerizing at least part of the stream containing normal hydrocarbons at a temperature which is higher than the temperature applied in step b).

Process for producing gasoline components

Process for the isomerization of a hydrocarbon feed containing hydrocarbons comprising at least 4 carbon atoms, which process comprises isomerizing a hydrocarbon stream; separating the isomerisate thus obtained into a hydrogen-containing gas and a hydrocarbon effluent; separating from the hydrocarbon effluent a product stream containing branched hydrocarbons, leaving non-product hydrocarbons, and passing at least part of these hydrocarbons again to the isomerization step, in which process at least part of the feed is added to at least part of the isomerisate before the isomerisate is separated into the hydrogen-containing gas and the hydrocarbon effluent.

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The Hague, Netherlands

Gregory V Tonks