Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1988-04-28
1989-10-17
McFarlane, Anthony
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423224, 423226, 423234, 423567R, 4235731, 55 73, 210673, 210721, C01B 1705
Patent
active
048745898
ABSTRACT:
Gas containing sulfide is washed in the washing vessel (13) with a washing liquid that normally comprises an alkaline solution having sodium 1,4-naphthoquinone-2-sulfonate as the catalyst. Contaminated liquid is subjected in a pressure vessel (59) to aeration under pressure with air or pure oxygen. By oxidation, elementary sulfur precipitates out and this is filtered out continuously in the filter (77). Regenerated washing liquid flows via a degassing vessel (69) into the storage container (27) and from there returns to the washing vessel (13). In the degassing vessel, under relaxed pressure, degassing occurs, and the sulfur foam along with the oxygen or air it contains is returned via the pump (55) to the presure vessel (59) or to the filter (77).
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McFarlane Anthony
UTB Umwelttechnik Buchs AG
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