A process for the regeneration of coke-contaminated fluid catalytic cracking catalyst, containing catalytically effective amounts of a CO conversion activator, and for the essentially complete catalytic conversion of carbon monoxide to carbon dioxide, which method comprises the steps of: a) passing to a dense phase catalyst bed in a regeneration zone said catalyst and new contribution regeneration gas with a first flow rate sufficient to oxidize coke in order to produce partially exhausted regeneration gas; b) oxidizing coke under first oxidation conditions including a first catalyst bed temperature of from 3992C to 6772C, to produce regenerated catalyst and partially depleted regeneration gas containing CO; c) increasing the temperature of the catalyst bed from said first temperature to a second temperature from 677ºC to 760ºC; d) passing fresh regeneration gas into the catalyst bed with a second stoichiometric flow rate to essentially completely oxidize C0 to form CO2; e) oxidizing CO in said catalyst bed, maintained under second oxidation conditions including the presence of said CO conversion activator, to produce exhausted regeneration gas; f) analyze exhausted regeneration gas to obtain a measured concentration of free oxygen and compare the measured concentration of free oxygen with a previously determined concentration of free oxygen; and g) thereafter regulating the newly supplied regeneration gas to a third flow rate to maintain the measured concentration of free oxygen equal to the previously determined concentration of free oxygen, thereby ensuring an essentially complete conversion of CO to CO2. (Machine-translation by Google Translate, not legally binding)
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