Process for the purification of nitric oxide

Details Process for the purification of nitric oxide Process for the purification of nitric oxide

1994-07-07

1995-05-23

Lewis, Michael

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423405, 95128, 95129, 95902, B01J 802, C01B 2124

Patent

active

054179505

ABSTRACT:
A gas mixture comprised of nitric oxide and, optionally an inert gas, and containing small amounts of nitrogen dioxide, and perhaps moisture and sulfur dioxide, is purified by passing the gas stream through a bed of metal cation-free alumina-deficient zeolites of types Y or ZSM-5. The concentrations of nitrogen dioxide, sulfur dioxide and moisture in the gas stream are reduced to about 1 ppm or less as the gas mixture passes through the bed of zeolite.

REFERENCES:
patent: 2568396 (1951-09-01), James
patent: 3489515 (1970-01-01), Jockers et al.
patent: 3674429 (1972-07-01), Collins
patent: 4149858 (1979-04-01), Noack et al.
patent: 4153429 (1979-05-01), Matthews et al.

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