Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent
1976-02-04
1977-06-21
Peters, G. O.
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
423242, 423244, 423555, B01D 5334
Patent
active
040311953
ABSTRACT:
Sulfur dioxide is removed from stack gases by absorption in an aqueous medium, the preferred embodiment containing a chemical oxidant which generates hydrogen peroxide on a demand that equals the rate sulfur dioxide is absorbed into the medium whereby the absorbed sulfur dioxide is converted to sulfate form. The converted sulfur dioxide is removed in the form of an alkaline earth metal sulfate precipitate and spent oxidant is regenerated for reuse. In the other illustrated embodiments, the aqueous medium is maintained acidic from the start-up of the system. Barium peroxide is the preferred oxidant and acts both as oxidant and precipitant. Alternately, the oxidant and precipitant may be separate compounds.
REFERENCES:
patent: 3733393 (1973-05-01), Couilland et al.
patent: 3760061 (1973-09-01), Hammond
Kirk-Othmer; Encyclopedia of Chemical Technology; vol. 14, Interscience Pub., 1969.
Mellor, J. W.; A Comprehensive Treatise on Inorganic and Theoretical Chemistry, vol. X., Longmans Green; N.Y., 1930; p. 209.
Heslop et al.; Inorganic Chemistry; Elsevier Pub. Co.; N. Y., 1963, p. 259.
Georgia Tech Research Institute
Peters G. O.
LandOfFree
Regenerative method removal of sulfur dioxide from stack gases does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Regenerative method removal of sulfur dioxide from stack gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regenerative method removal of sulfur dioxide from stack gases will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-736480