Patent ID: 6875339
Filing Date: 2005-04-05
Classification: C10G

Abstract:
1. A method for improving the octane number of a synthetic naphtha stream, comprising: (A) providing a hydrocarbon feedstream comprising primarily C (B) reacting the hydrocarbon feedstream under aromatization promoting conditions so as to convert at least some of the acyclic hydrocarbons to aromatic hydrocarbons and generate a cyclized hydrocarbon stream, wherein the cyclized hydrocarbon stream includes said aromatic hydrocarbons and unconverted acyclic hydrocarbons; and (C) reacting the cyclized hydrocarbon stream under isomerization promoting conditions so as to convert at least some of the unconverted acyclic hydrocarbons to branched hydrocarbons and generate a cyclized, isomerized hydrocarbon stream, wherein the cyclized, isomerized hydrocarbon stream includes aromatic hydrocarbons and branched hydrocarbons, and has an octane number greater than the octane number of the hydrocarbon feedstream.