Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1990-10-19
1993-11-09
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423238, 422172, 239 10, C01B 2120
Patent
active
052600424
ABSTRACT:
The method for introducing a treatment medium into the waste gas flow in combustion processes provides that a carrier medium be mixed with a treatment medium, wherein these media are brought to a pressure level necessary for the atomization in a one-component nozzle prior to mixing. The quantitative proportion of treatment medium to carrier medium, which is adjustable as desired, is adjusted as a function of the NO.sub.x gas concentration in the treated gas flow or as a function of the waste gas quantity. The atomization pressure is either predetermined as a fixed value corresponding to the nozzle configuration or adjusted as a function of the waste gas quantity. The atomization pressure can also possibly be regulated as a function of the evaporator load. Water serves as carrier medium, while ammonia, sal ammoniac, urea or calcium cyanamide is used as treatment medium.
REFERENCES:
patent: 3565575 (1971-02-01), Warshaw
patent: 4293521 (1981-10-01), Isahaya
patent: 4302205 (1981-11-01), Muraki
patent: 4681746 (1987-07-01), Michalak
Martin GmbH fur Umwelt-und Energietechnik
Straub Gary P.
Vanoy Timothy C.
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