Patent ID: 7763763
Filing Date: 2010-07-27
Classification: C10G,Y10S

Abstract:
1. A process for the production of olefins comprising passing a synthetic naphtha to a steam cracker wherein at least a portion of the synthetic naphtha is a combined synthetic naphtha produced from a process comprising: a) contacting a synthesis gas stream at an elevated temperature and pressure with a Fischer-Tropsch catalyst in a Fischer-Tropsch reactor to generate a hydrocarbon product stream; b) separating the hydrocarbon product stream to provide at least one lighter fraction and at least one heavier fraction; c) passing at least a portion of the heavier fraction to a hydroprocessing reactor to produce an upgraded hydrocarbon product stream; d) combining the upgraded hydrocarbon product stream with the lighter fraction; and e) fractionating the combined lighter fraction and upgraded hydrocarbon product stream in a fractionator to produce a combined synthetic naphtha stream, said lighter fraction not being subjected to any intermediate hydroprocessinq prior to being combined with the upgraded hydrocarbon product stream; and f) passing the combined synthetic naphtha stream to a steam cracker to produce olefins.