Apparatus and process for flue gas desulphurization

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Inorganic sulfur acid or anhydride producing type

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422160, 422169, 422173, 422182, 423244, 423522, C01B 1748, C01B 1704, B01J 802

Patent

active

043024254

ABSTRACT:
An apparatus and process for removing sulphur components from flue gasses which include O.sub.2 and water vapor. The flue gasses are first heated to at least 1000.degree. F. Then H.sub.2 is added to the flue gasses for converting at least some of the SO.sub.x components to S and H.sub.2 S. H.sub.2 O is then sprayed into the flue gasses for precipitating particulate matter and for converting at least some of the H.sub.2 S components into H.sub.2 SO.sub.4. The resultant flue gasses are then filtered through lime rock for absorbing any H.sub.2 S and H.sub.2 SO.sub.4 components and for trapping any remaining particulate matter therein. Some of the NO.sub.x components may also be reduced using this process. An apparatus for effecting this process is also disclosed.

REFERENCES:
patent: 1409364 (1922-03-01), Dobbs et al.
patent: 3668833 (1972-06-01), Cahill
patent: 3745751 (1973-07-01), Zey et al.
patent: 3745939 (1973-07-01), Alberitton
patent: 3752877 (1973-08-01), Beavon
patent: 3931390 (1976-01-01), Palilla
patent: 3989798 (1976-11-01), Greene et al.
patent: 4060589 (1977-11-01), Hass

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