Exxon Research and Engineering Company

Joseph P Matula

William Ernest Lewis

Francis X Mayer

David W Staubs

William J Metrailer

Merlan M Lambert

Disclosed is a process for converting heavy hydrocarbonaceous feedstock to more valuable products. The feedstock is introduced into a coking unit containing a coking zone and a scrubbing zone. The bottoms fraction from the scrubbing zone is passed through a microfiltration unit, thus removing fine coke particles which are recycled to the coking zone. The substantially solids-free filtrate is hydrotreated, then passed to a catalytic cracking unit.

Once-through coking with hydrotreating and fluid catalytic cracking

Disclosed is a process wherein a scrubber bottom stream from a fluid coker is departiculated by passing it through a microfiltration system. The substantially solids-free filtrate is then upgraded by hydrotreating.

Once-through coking with solids recycle

An integrated fluid coking and gasification process is provided in which a portion of the coke is gasified in a first gasification zone in the presence of an oxygen-containing gas to produce a hot gas and hot coke. A portion of the resulting hot coke is gasified in a second gasification zone in the presence of steam to produce a gas comprising hydrogen and carbon monoxide, which is suitable, after conventional shift and clean up, for use as synthesis gas.

Fluid coking and gasification process

A hydrocarbonaceous oil is introduced to a quench and scrubbing zone mounted on a fluid coking reactor. Heat from the coker vapor product vaporizes a portion of the hydrocarbonaceous oil. The unvaporized portion of the oil is used to quench and scrub the coker vapor product. The bottoms fraction of the quench and scrubbing zone is passed to a vacuum distillation zone to recover a heavy oil fraction and to produce a vacuum residuum for use as coker feed.

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Randolph Township, NJ, United States of America

Joseph P Matula