Nitrogen oxides reducing agent and a phosphate

Details Nitrogen oxides reducing agent and a phosphate Nitrogen oxides reducing agent and a phosphate

1994-03-10

1996-02-06

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232391, C01B 2104

Patent

active

054894204

ABSTRACT:
Processes and compositions enable selective noncatalytic reduction (SNCR) in the gas phase at temperatures above 950.degree. C. to reduce the environmental damage caused by NO.sub.x and related emissions. By utilizing a nitrogenous NO.sub.x -reducing agent, such as urea, in combination with a phosphate at a ratio of nitrogen in the NO.sub.x -reducing agent to phosphorous of less than about 50:1, NO.sub.x reduction is improved and carbon monoxide, nitrous oxide and ammonia are maintained at low levels.

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Translation of 4930147 (abstract only).

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