Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1989-01-13
1990-09-11
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423242, C01B 2100, C01B 1700
Patent
active
049561618
ABSTRACT:
A gas desulfurization process is provided in which a gaseous mixture comprising sulfur oxides is contacted in an absorption zone, at absorption conditions, with an aqueous composition comprising ammonium carbonate, or ammonium bicarbonate or mixtures thereof, in an amount such that the product of the partial pressures of the sulfur oxides and ammonia over said aqueous composition is below a specified limit, to produce a gaseous product having a decreased content of sulfur oxides and a decreased appearance of blue haze. A combination nitrogen oxides removal (deNO.sub.x) and desulfurization (deSO.sub.x) process is also provided.
REFERENCES:
patent: 3843789 (1974-10-01), Spector et al.
patent: 3900554 (1975-08-01), Lyon
patent: 4325713 (1982-04-01), Rosenberg et al.
Cahn Robert P.
Hurst Boyd E.
Exxon Research and Engineering Company
Heller Gregory A.
Ott Roy J.
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