Exxonmobil Chemical Patents Inc.

John J Waldrop

Stephen Harold Brown

Paul F Keusenkothen

Richard Charles Stell

S Mark Davis

Jiunn-Shyan Liou

Arthur R Di Nicolantonio

Arthur R DiNicolantonio

This invention relates to a process and system for cracking hydrocarbon feedstock containing vacuum resid comprising: (a) subjecting a vacuum resid to a first thermal conversion in a thermal conversion reactor (such as delayed coker, fluid coker, Flexicoker&#x2122;, visbreaker and catalytic hydrovisbreaker) where at least 30 wt % of the vacuum resid is converted to material boiling below 1050&#xb0; F. (566&#xb0; C.); (b) introducing said thermally converted resid to a vapor/liquid separator, said separator being integrated into a steam cracking furnace, to form a vapor phase and liquid phase; (c) passing said vapor phase to the radiant furnace in said steam cracking furnace; and (d) recovering at least 30 wt % olefins from the material exiting the radiant furnace (based upon the weight of the total hydrocarbon material exiting the radiant furnace).

Integrated process for steam cracking

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Kingwood, TX, United States of America

John J Waldrop