Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1978-08-09
1979-07-24
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423239, 423241, 176 37, 2523011W, B01D 5334
Patent
active
041622987
ABSTRACT:
This invention is a method for rapidly and continuously immobilizing carbon dioxide contained in various industrial off-gas streams, the carbon dioxide being immobilized as dry, stable, and substantially water-insoluble particulates. Briefly, the method comprises passing the gas stream through a fixed or fluidized bed of hydrated barium hydroxide to remove and immobilize the carbon dioxide by converting the bed to barium carbonate. The method has several important advantages: it can be conducted effectively at ambient temperature; it provides a very rapid reaction rate over a wide range of carbon dioxide concentrations; it provides high decontamination factors; and it has a high capacity for carbon dioxide.
The invention is especially well suited for the removal of radioactive carbon dioxide from off-gases generated by nuclear-fuel reprocessing facilities and nuclear power plants.
REFERENCES:
patent: 3847837 (1974-11-01), Boryta
patent: 4039620 (1977-08-01), Nettleland
Mellor, "A Comprehensive Treatise on Inorganic & Theoretical Chemistry", Longman, Green & Co., N.Y., vol. III, p. 817, 1923.
Scheibler, "Ueber das Verhalten der Alkalischen Erden und Deren Hydrate gegen Troiken Kohlensaure", Berichte Chemiche, vol. No. 19, 1886, pp. 1973-1982.
Swanson, "Literature Survey: Reaction of CO.sub.2 with Solid CaO", Allied Chemical Company, Oct. 12, 1976.
Adriani et al., "The Efficiency of Mixtures of Barium and Calcium Hydroxides in the Absorption of Carbon Dioxide in Rebreathing Appliances," Anesthesiology, vol. 3, No. 1, Jan. 1942, pp. 1-10.
Batten et al., "Clinical and Experimental Studies of Barium and Calcium Hydroxides Mixtures (Baralyme) for Carbon Dioxide Absorption in Anesthesia", Anesthesia and Analgesia, vol. 21, 1942, pp. 151-158, Chemical Abstracts, vol. 36, 4600.
Haag Gary L.
Holladay David W.
Carlson Dean E.
Hamel Stephen D.
Lewis Fred O.
The United States of America as represented by the United States
Thomas Earl C.
LandOfFree
Method of immobilizing carbon dioxide from gas streams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of immobilizing carbon dioxide from gas streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of immobilizing carbon dioxide from gas streams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1287890