SO x control additive reduces emissions, saving capital investments

John S. Becker Ultramar Diamond Shamrock Corp. Alma, Mich. Mark J. LaCour Citgo Petroleum Corp. Lake Charles, La. Steven W. Davey, John T. Haley Grace Davison Baltimore SOx control additives can reduce fluid catalytic cracking (FCC) SOxemissions to comply with environmental regulations without requiring the capital investment and maintenance cost of feed hydrodesulfurization or flue-gas scrubbing. Two cases described in this article reveal the additives' capabilities and cost. Citgo Petroleum Corp., in a full-burn test in its Lake Charles, La., refinery, achieved an SOxreduction of 44% when testing Grace Davison's Desox SOxcontrol additive. Total P...

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