Nitrogen production

Details Nitrogen production Nitrogen production

1988-09-07

1989-03-21

Doll, John

Chemistry of inorganic compounds

Nitrogen or compound thereof

423437, C01B 302

Patent

active

048141569

ABSTRACT:
Production of a nitrogen gas stream from the waste gas from a pressure adsorption process separating a raw gas stream containing nitrogen, carbon dioxide, and combustible gas including hydrogen, into a hydrogen containing product stream and a waste gas stream containing carbon dioxide, some combustible gas, and at least some of the nitrogen, by catalytically combusting the waste gas stream with an oxygen containing gas and removing water from the combusted waste gas stream. Carbon dioxide is removed from the waste gas stream before and/or after catalytic combustion. To reduce the residual oxygen content of the combusted waste gas stream, a small amount of hydrogen, e.g. a portion of the hydrogen containing product from the pressure swing adsorption, may be added to the combusted waste gas stream and the mixture catalytically reacted.

REFERENCES:
patent: 4414191 (1983-11-01), Fuderer
patent: 4553981 (1985-11-01), Fuderer
patent: 4592860 (1986-06-01), Fuderer
patent: 4733528 (1988-03-01), Pinto

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