Catalytic oxidation of organic nitrogen-containing compounds

Details Catalytic oxidation of organic nitrogen-containing compounds Catalytic oxidation of organic nitrogen-containing compounds

1995-07-21

1998-02-24

Jones, Deborah

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423235, C01C 300

Patent

active

057209316

ABSTRACT:
A method of treating a gaseous stream containing one or more volatile nitrogen-containing organic compounds which comprises contacting the gaseous stream and an oxidizing agent with a catalyst at relatively low temperatures to cause oxidation of the volatile nitrogen-containing organic compounds. The catalyst employed promotes the oxidation reaction to selectively produce N.sub.2 O, N.sub.2, CO.sub.2 and H.sub.2 O without generating significant amounts of NO.sub.x to permit the reaction products to be vented directly into the atmosphere. The catalyst includes a selected amount of a noble or base metal deposited on a catalyst support comprising titania or zirconia. One or more of the elements molybdenum, tungsten or vanadium are added as promoters to the composition which minimizes the generation of NO.sub.x among the reaction products. Lanthanum may be added to provide better thermal stability and increase the selectivity for producing N.sub.2 among the reaction products. The process is effective when the gas stream also includes other non-nitrogen-containing organic compounds or NO.sub.x mixed with the nitrogen containing compound being treated without generating significant amounts of NO.sub.x in the reaction products.

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