Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1984-06-11
1985-06-25
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423242, 423244, 110343, 110345, 2041571R, 2041571H, C01B 2100, C01B 1700, B01J 800, B01J 110
Patent
active
045251428
ABSTRACT:
A process uses limestone injection into a combustion boiler burning pulverized coal or liquid hydrogen fuel. Effluent gas from the boiler is humidified and cooled to below 200.degree. F. During the humidifying and cooling step, sulfur dioxide removal occurs in addition to that which takes place in the combustion zone of the boiler. The effluent gas and unreacted alkali is then fed into an electron beam irradiation chamber which produces energetic conditions for rapid reaction of sulfur dioxide and nitrogen oxides in the presence of water vapor. The remaining unreacted alkali reacts rapidly and in-situ with the sulfuric acid and nitric acid formed in the electron beam chamber.
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patent: 4372832 (1983-02-01), Bush
Feldman Paul L.
Gleason Robert J.
Heller Gregory A.
Research-Cottrell, Inc.
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