Fluid catalytic cracking regenerator with reduced NOx emissions

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(11)

EP 1 201 729 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	20.11.2002 Bulletin 2002/47

(43)	Date of publication A2:
	02.05.2002 Bulletin 2002/18

(21)	Application number: 01309166.5

(22)	Date of filing: 30.10.2001

(51)	International Patent Classification (IPC)⁷: C10G 11/18

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

31.10.2000 US 702975

(71)	Applicant: THE BOC GROUP, INC.
	Murray Hill, New Providence, New Jersey 07974-2082 (US)

(72)	Inventor:
	Menon, Raghu Koyamangalam South Plainfield, New Jersey 07080 (US)

(74)	Representative: Wickham, Michael et al
	c/o Patent and Trademark Department The BOC Group plc Chertsey Road Windlesham Surrey GU20 6HJ Windlesham Surrey GU20 6HJ (GB)

(54)	Fluid catalytic cracking regenerator with reduced NOx emissions

(57) A method for inhibiting the formation of nitrogen oxides in a carbon monoxide boiler 22 using fuel gas to burn the carbon monoxide downstream of an FCC regenerator 2 by introducing an oxygen-enriched gas into the boiler 22. Preferably, a nitrogen-enriched gas is simultaneously added to the boiler which further reduces the formation of nitrogen oxides.

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