Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1992-01-30
1993-11-23
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423246, C01B 2100, C01C 300
Patent
active
052641953
ABSTRACT:
The subject invention relates to a method for combined reduction of the concentrations of nitrogen oxides (NOx) and carbon monoxide (CO) formed in fossil fuels combustion process in combustion apparatus and fuels combustion devices, such as automotive and stationary internal combustion engines, gas turbines, fuel fired power boilers and heaters, among others, by the reduction process conversion of NO to harmless N.sub.2 and water, combined with oxidation of CO to carbon dipoxide (CO.sub.2), which is subsequently discharged in the effluent combustion products gasea into the ambient air atmosphere. The combined process of NOx reduction and CO oxidation comprising the step of interjecting ethylenediamine and/or alkanolamine compounds into the fuel combustion reaction products gases mixture of a fossil fuel fired combustion apparatus or combustion device, wherein the intermixed NO and CO with the interjected ethylenediamine and/or alkanolamine compounds undergo the reduction process of converting NO to the harmless N.sub.2 and H.sub.2 O, and oxidation process of converting CO to CO.sub.2, which is subsequently discharged in the fuels combustion products gas effluents into the ambient air atmosphere.
REFERENCES:
patent: 4071602 (1978-01-01), Pearce
patent: 4803059 (1989-02-01), Sullivan
patent: 4943421 (1990-07-01), Turchan
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