Phillips Petroleum Company

Philip V Steed

Jan W Wells

Catalytic regenerators, nozzle designs and processes suitable for introducing regeneration air into a catalytic cracking unit which substantially reduce erosion induced nozzle failures include a plurality of nozzle elements having a roughness defined upon the outside surface of said nozzle elements so as to reduce erosion due to the impact of fluidized catalyst particles within the catalytic regenerator.

Catalyst regeneration

Conditioning of a sample of the cracked-gas effluent from a cracking furnace is accomplished by contacting the sample under suitable conditions with a suitable hydrocarbon absorbent in such a manner that the heavier components in the cracked-gas sample are absorbed. The rate at which the sample is contacted with the suitable hydrocarbon absorbent is controlled so as to maintain a desired composition of the conditioned sample.

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Bartlesville, OK, United States of America

Philip V Steed