Ashland Oil, Inc.

Robert L Cottage

Paul W Walters

George D Myers

An apparatus for the removal or collection of solid dispersoids in gases which structurally comprises a combination of a gravity settling chamber and a cyclonic separator. In operation, the bulk of the entrained solids of a gas/solid fluid stream is alone discharged from a conduit transporting said stream into the settling chamber and collected therein whereas the gas phase containing only residual amounts of entrained solids is simultaneously diverted through a cyclonic separator to complete the removal of the solids from the gas stream.

Apparatus for separating solid dispersoids from gaseous streams

A method for disengaging catalyst particulates from the effluent of a riser tube in the operation of a FCC unit. The catalyst component of the resultant ascending fluid stream is propelled from the riser tube into the catalyst disengaging or collection chamber by virtue of the inertial momentum associated therewith. The vaporous hydrocarbon conversion products containing only residual entrained amounts of catalyst, being passively restrained from entering the disengaging chamber, are simultaneously diverted to a fractionation unit via a cyclonic separator.

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Catlettsburg, KY, United States of America

Robert L Cottage