Method and system for regenerating fluidizable catalyst particle

Details Method and system for regenerating fluidizable catalyst particle Method and system for regenerating fluidizable catalyst particle

1973-07-18

1977-07-12

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

23288S, 208113, 208164, 252417, 252419, C10G 1104, B01J 824

Patent

active

040352846

ABSTRACT:
A hydrocarbon conversion-catalyst regeneration operation is described which relies upon a dense fluid catalyst bed superimposed by a dispersed catalyst phase operation to effect elevated temperature regeneration of the catalyst providing low CO levels less than 0.15 mol percent in the flue gas by mixing regenerated catalyst with spent catalyst to obtain an initial mix temperature of at least 1175.degree. F. before contact with oxygen containing regeneration gas. The ratio of regenerated to spent catalyst is restricted to within the range of 0.5 to 1.5 and the oxygen content through the dense and dispersed catalyst phase is selected to provide a discharged dispersed catalyst phase temperature of at least 1350.degree. F.

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patent: 3909392 (1975-09-01), Horecky et al.
patent: 3926778 (1975-12-01), Owen et al.

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