PROCESS FOR PROMOTING DISPROPORTIONATION REACTIONS AND RING OPENING REACTIONS WITHIN AN ISOMERIZATION ZONE

摘要

A process for increasing disproportionation and ring opening reactions an isomerization zone which converts iso-paraffins to normal paraffins. In order to promote these reactions, the amount of C6 cyclic hydrocarbons entering the isomerization zone is reduced. Disproportionation reaction selectivity is observed which produces valuable C3 hydrocarbons and C4 hydrocarbons. Also, a higher ring opening conversion of C5 cyclic hydrocarbons is observed. Conversion of iC4 hydrocarbons, iC5 hydrocarbons, and iC6 hydrocarbons may occur in the same isomerization zone.

主权项

1. A process for increasing a conversion of iC5 hydrocarbons and iC6 hydrocarbons from a naphtha stream, the process comprising:
isomerizing iC5 hydrocarbons to normal pentane, under isomerization conditions in the presence of a catalyst, in an isomerization zone; simultaneously isomerizing iC6 hydrocarbons to normal hexane, under isomerization conditions in the presence of a catalyst, in the isomerization zone; and, promoting disproportionation reactions within the isomerization zone by reducing an amount of C6+ cyclic hydrocarbons entering into the isomerization zone.