Aqueous ammonia injection scheme

Details Aqueous ammonia injection scheme Aqueous ammonia injection scheme

1990-10-15

1992-03-24

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423239, C01B 2100, B01J 800

Patent

active

050986805

ABSTRACT:
An improved process for reducing nitrogen oxide emissions to the atmosphere comprises the injection of ammonia vapor, formed by the vaporization of an aqueous ammonia solution, into a combustion effluent. A dilute aqueous ammonia phase, produced by such vaporization, may also be injected, either in vapor or liquid form, into a combustion effluent. Temperature and pressure control of such vaporization may be used to maintain the desired concentration of ammonia injected into the combustion effluent.

REFERENCES:
patent: 4235851 (1980-11-01), Flockenhaus
patent: 4500501 (1985-02-01), Hamada et al.

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