Patent ID: 8105479
Filing Date: 2012-01-31
Classification: C10C,C10G

Abstract:
1. A process for upgrading tar-containing effluent from a steam cracker furnace comprising: a) feeding a hydrocarbon feedstock having a final boiling point above 260° C. to a steam cracking furnace containing a radiant section outlet producing a steam cracker tar-containing effluent; b) adding steam to at least a portion of said steam cracker tar-containing effluent while the tar-containing effluent is at a temperature of from 300° C. to 850° C. to form a steam-effluent mixture; and c) separating the steam-effluent mixture into i) at least one tar-lean product containing a first tar; and ii) a tar-rich product containing a second tar, the tar-rich product having a final boiling point above the final boiling point of the at least one tar-lean product.