Patent ID: 8753577
Filing Date: 2014-06-17
Classification: B01J,C10G

Abstract:
1. An integrated system for cracking a heavy hydrocarbon feedstock to produce an effluent comprising a range of hydrocarbon products including C 5 olefins and for cracking C 5 olefin hydrocarbon products to produce C 2 and C 3 olefins, said integrated system comprising: a fluidized catalytic cracking reactor wherein the heavy hydrocarbon feedstock contacts a hydrocarbon cracking catalyst at hydrocarbon cracking reaction conditions to produce a hydrocarbon effluent comprising a range of hydrocarbon products including C a separator to separate the hydrocarbon effluent to form a wet gas stream comprising C a first compressor to compress the wet gas stream; a gas concentration system wherein the compressed wet gas stream is processed to at least separately concentrate and remove C an olefin cracking reactor wherein at least a portion of the C a first return line wherein at least a portion of the cracked olefin effluent is introduced into the first compressor and subsequently processed through the gas concentration system; and a cracked olefin effluent separation system effective to separate the cracked olefin effluent into a vapor stream comprising C