Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1977-02-16
1978-07-04
Peters, G. O.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423236, 423573R, C01B 1704
Patent
active
040988864
ABSTRACT:
Thiosulphate ions present in gas purification liquors, particularly those employed for removing H.sub.2 S by washing with aqueous alkaline solutions of vanadium compounds and anthraquinone disulphonic acids, are decomposed to sulphide and hydroxyl ions by exposing the liquor to a hydrogen rich gas at elevated temperature e.g., 650.degree. C. The liquor may be evaporated and the solid residue subjected to decomposition. Any thiocyanate ions are hydrolyzed; it being necessary to mix steam with the hydrogen rich gas if a solid residue is being decomposed.
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Mellor, J. W., "A Comprehensive Treatise on Inorganic and Theoretical Chemistry", Longmans, Green & Co.; Lond, 1940, vol. X, p. 494.
Sneed et al., "Comprehensive Inorganic Chemistry", vol. 6, D. Van Nostrand Co.; N. Y. 1957, p. 167.
Farrington Frederick
Nicklin Thomas
British Gas Corporation
Peters G. O.
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