Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1976-06-17
1979-04-10
Douglas, Winston A.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
208113, 208120, 208164, 252416, 252417, B01J 2120, B01J 2396, B01J 2938, C10G 1104
Patent
active
041487516
ABSTRACT:
A method for regenerating a coke-contaminated cracking catalyst with the simultaneous carefully controlled catalyzed combustion of CO to CO.sub.2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method include adding to the regeneration zone, independently of the cracking catalyst, a supported CO oxidation promoter and combusting CO to CO.sub.2 in the presence of the promoter and regenerated catalyst. A supported oxidation promoter may be added to the regeneration zone in amounts to control the CO concentration in the flue gas, a regeneration zone temperature, or the residual carbon concentration on regenerated catalyst.
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Hemler, Jr. Charles L.
Stine Laurence O.
Douglas Winston A.
Konopka P. E.
McBride Thomas K.
Page II William H.
UOP Inc.
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