Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Exxon Chemical Patents, Inc.

Mitchell Jacobson

Willibald Serrand

John F Pagel

Michael R Parrish

David G Hammond

Paul K Ladwig

Martin C Poole

Hans A Weisenberger

Noel M Seimandi

Tony T Cheng

Michael Siskin

Martin Leo Gorbaty

Udo Zentner

Ingo Dreher

Robert C Green

Norman H Sweed

Hans J M Weiss

Jorg H Schmalfeld

Noel Seimandi

Norman Harris Sweed

Hans Weiss

The present invention relates to a process for increasing the capacity for processing residua and obtaining higher yields of liquids having an average boiling point equal to or less than about 510&#xb0; C. A residual feedstock is introduced with recycled product asphaltenes into a short vapor contact time thermal process unit wherein the vaporized product is sent to a fractionator zone to produce a 510&#xb0; C.fraction and a 510&#xb0; C.fraction. The 510&#xb0; C.fraction is sent to a solvent extraction zone to produce an asphaltene-rich fraction that is recycled to the short vapor contact time thermal process unit.

Residuum conversion process

An improved process for deasphalting a residua feedstock by use of a short vapor residence time process unit comprised of a horizontal moving bed of fluidized and/or stirred hot particles. The vapor phase product stream from said process unit is passed to a soaker drum where a high boiling fraction is separated and recycled to the process unit after undergoing reactions causing molecular weight growth. This reactive recycle using the soaker drum results in substantially improved qualities of the liquid products compared with what is achieved by once-through residua deasphalting process alternatives.

Process for deasphalting residua by reactive recycle of high boiling material

A two-stage process for converting petroleum residua and other low value oils to high valued gasoline blendstocks and light olefins. 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 to 600&deg; C. and having a short vapor residence time, and the second stage is comprised of a catalytic conversion zone operated at a temperature of about 525&deg; C. to about 650&deg; C., and also having a short vapor residence time, preferably shorter than that of the first stage reaction zone.

Two-stage process for converting residua to gasoline blendstocks and light olefins

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 process wherein a residuum feedstock is upgraded in a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles, then fed to a fluid catalytic cracking process unit. Hot flue gases from the fluid catalytic cracking unit is used to circulate solid particles and to provide process heat to the thermal process unit.

Integrated residua upgrading and fluid catalytic cracking

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 deasphalting a residua feedstock by use of a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. It is preferred that a mechanical means be used to fluidize a bed of hot particles.

Process for deasphalting residua (HEN9511)

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

An improved fluidized bed coking process wherein a residuum feedstock is introduced into a first stage comprised of a short vapor contact time reactor containing a horizontal moving bed of fluidized hot particles. Carbonaceous material is deposited onto the hot particles on contact with the hot particles, and a vapor product is produced. The hot particles, containing the carbonaceous deposits, are fed to a second stage fluidized bed coking process.

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West Orange, NJ, United States of America

Mitchell Jacobson