Patent ID: 7223898
Filing Date: 2007-05-29
Classification: C07C

Abstract:
1. A process for the isomerization of a feedstream comprising C 5 –C 6 hydrocarbons said process comprising: charging hydrogen and a feedstream comprising at least normal C passing the isomerization zone effluent to a deisohexanizer zone to separate four streams, a deisohexanizer zone overhead stream comprising at least butane, a first deisohexanizer zone sidecut stream comprising at least methylbutane and dimethylbutanes, a second deisohexanizer zone sidecut stream comprising at least methylpentanes and normal hexane, and a deisohexanizer zone bottoms stream comprising at least hydrocarbons having seven or more carbon atoms; and passing the first deisohexanizer zone sidecut stream to an isomerate stripper zone to separate an isomerate stripper zone overhead stream comprising at least butane from an isomerate stripper zone product stream containing methylbutane and dimethylbutanes.