Method for purification of gases

Details Method for purification of gases Method for purification of gases

1980-03-12

1981-11-17

Nozick, Bernard

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

55 10, 55 73, 55122, 422170, 422186, 159 4A, B01D 4700, B03C 300

Patent

active

043011284

ABSTRACT:
The present invention is directed to a method for selective purification of gases. The method comprises feeding an exhaust gas containing a solid impurity and a gaseous impurity to a separator. A substantial portion of the solid impurity is separated. Then, the partially-purified gas is fed to a spray dryer. That gas is sprayed with an absorption agent to separate gaseous impurities. Then, the further, partially-purified gas is fed to another separator to separate remaining solid impurity. An exhaust gas which is substantially free of solid and gaseous impurities and fly ash having a desired quality are recovered.

REFERENCES:
patent: 3784389 (1974-01-01), Hastrup
patent: 3966878 (1976-11-01), Pausch et al.
patent: 4024220 (1977-05-01), Ostroff et al.
patent: 4039304 (1977-08-01), Bechthold et al.
patent: 4197218 (1978-02-01), Gehri et al.
patent: 4198380 (1980-04-01), Kohl

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