Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1981-04-22
1983-02-08
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
B01J 800, C01B 1700
Patent
active
043729266
ABSTRACT:
In connection with the desulfurization and dedusting of flue gas where use is made of a combined spray drying and absorption and the material produced by this process is filtered off from the gas stream together with fly ash, a heating of the flue gas is performed prior to its discharge into the atmosphere by admixture of hot, non-purified flue gas. This admixture takes place so that the flue gas serving for the reheating passes through only a part of the available filter area, which allows the remaining part of the filter area to be kept at a relatively low temperature. This results in a particularly high sulfur dioxide absorption being achieved during the passage of the flue gas through the filter.
A baghouse unit divided up in a special manner can be used in the process.
REFERENCES:
patent: 1912381 (1933-06-01), Meston
patent: 2862789 (1958-12-01), Burgess
patent: 3733777 (1973-05-01), Huntington
patent: 3733781 (1973-05-01), Billisio et al.
patent: 3785119 (1974-01-01), McIlvaine
patent: 4197278 (1980-04-01), Gehri et al.
Coe Everett L.
Felsvang Karsten S.
Gude Klaus E.
A/S Niro Atomizer
Heller Gregory A.
Joy Manufacturing Company
Thomas Earl C.
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