Removal of carbon monoxide and sulfur oxides from refinery flue

Details Removal of carbon monoxide and sulfur oxides from refinery flue Removal of carbon monoxide and sulfur oxides from refinery flue

1976-10-12

1979-03-27

Vertiz, O. R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

423244, 208113, 208164, 252417, C01B 1700, C10G 1100, B01D 1506

Patent

active

041464630

ABSTRACT:
A cyclic fluidized catalytic cracking process is operated with a cracking catalyst which is modified with one or more metal oxides capable of reacting with sulfur oxides in the regeneration zone wherein the catalyst is regenerated under conditions which result in substantially complete conversion of carbon monoxide to carbon dioxide. Tail gases and flue gases from refinery furnaces which contain carbon monoxide and sulfur oxides are conveyed to the regeneration zone where they are scrubbed by the modified catalyst. The sulfur oxides are absorbed and the carbon monoxide is converted to carbon dioxide in the regeneration zone.

REFERENCES:
patent: 3810972 (1974-05-01), Humphrey et al.
patent: 4071436 (1978-01-01), Blanton et al.

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