Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Reexamination Certificate
2006-04-03
2009-11-17
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
C423S242100, C423S243010, C423S243060, C423S243080, C423S244010, C423S244070
Reexamination Certificate
active
07618602
ABSTRACT:
A process of using solutions containing thiosulfate and/or chloride salt reagents to remove SO3and H2SO4acid gases from a flue gas. The solution is injected into a moving volume of flue gas to achieve a droplet size that enables the solution to dry on contact with the flue gas, generating dried particles of the reagent that react with the SO3and H2SO4acid gases yielding a salt precipitate. SO2present in the flue gas may also be absorbed with the solution, with a subsequent reaction yielding bisulfite species that, upon drying of the droplet, react with the SO3and H2SO4acid gases to form salts that are removed from the gas. The removal of these acid gases from a flue gas reduce corrosion of equipment used in coal or oil fired power plants downstream of the injection cite.
REFERENCES:
patent: 3906080 (1975-09-01), Gorin et al.
patent: 4696805 (1987-09-01), Shinoda et al.
patent: 5085843 (1992-02-01), Rasmussen et al.
patent: 5342593 (1994-08-01), Christiansen et al.
patent: 5435980 (1995-07-01), Felsvang et al.
patent: 6126910 (2000-10-01), Wilhelm et al.
patent: 6803025 (2004-10-01), Meserole et al.
Meserole Frank B.
Moser Robert E.
Wilhelm James H.
Codan Development LLC
Hartman Domenica N. S.
Hartman Gary M.
Hartman & Hartman P.C.
Vanoy Timothy C
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