Exxon Research and Engineering Company

Exxon Chemical Patents, Inc.

Michael R Parrish

Willibald Serrand

Mitchell Jacobson

Paul K Ladwig

John F Pagel

Hans A Weisenberger

Noel M Seimandi

Tony T Cheng

David G Hammond

Noel Seimandi

A process for obtaining a substantial amount of olefinic products from a residual feedstock by use of a vapor short contact time conversion process unit comprised of a bed of fluidized heat transfer solids. The vapor short contact time process unit is operated at conditions which includes steam dilution to reduce partial pressure of hydrocarbon vapors and a vapor residence time less than about 0.5 seconds.

Process for obtaining olefins from residual feedstocks

A process for producing normally gaseous olefins from two different process units sharing common downstream quench and fractionation facilities, wherein one of the process units is a short contact time mechanically fluidized vaporization unit for processing petroleum residual feedstocks and the other is a conventional steam cracking unit.

Dual process for obtaining olefins

A two-stage process for obtaining a substantial amount of olefinic product from a residua feedstock. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500.degree. to 600.degree. C. and having a short vapor residence time, and the second stage thermal conversion zone operated at a temperature of about 700.degree. C. to about 1100.degree. C., and also having a short vapor residence time.

Two-stage process for obtaining significant olefin yields from residua

A process for obtaining a substantial amount of olefinic products from a residua feedstock by use of a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles.

Process for obtaining significant olefin yields from residua feedstocks

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Morristown, NJ, United States of America

Michael R Parrish