Ramoorthy Chandrasekhar

US Patent:

7070746, Jul 4, 2006

Filed:

May 26, 1999

Appl. No.:

09/320077

Inventors:

Patrick Notte - Wavre, BE
Barry L. Bowman - Greenwood SC, US
Judith P. Oppenheim - Pensacola FL, US
Alexander Stepanovich Noskov - Novosibirsk, RU
Ramoorthy Chandrasekhar - Greer SC, US
Gregory P Croce - Concord CA, US

Assignee:

Solutia Inc. - St. Louis MO

International Classification:

C01B 21/22

US Classification:

423219, 4232391, 4232453, 423247, 423400

Abstract:

A method for purification of an oxygen contaminated nitrous oxide gas by feeding the nitrous oxide gas and a reducing agent such as hydrogen, carbon monoxide or ammonia into a de-oxidation reactor, performing de-oxidation by reacting the reducing agent with oxygen using a catalyst such as palladium or platinum in order to deplete the oxygen in the nitrous oxide gas, while limiting the amount of nitrous oxide removed from the nitrous oxide gas.