Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Direct contact with molten material
Patent
1977-06-21
1978-04-25
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Direct contact with molten material
423232, 423563, B01D 5334
Patent
active
040863239
ABSTRACT:
Fuel gases such as those produced in the gasification of coal are stripped of sulfur compounds and particulate matter by contact with molten metal salt. The fuel gas and salt are intimately mixed by passage through a venturi or other constriction in which the fuel gas entrains the molten salt as dispersed droplets to a gas-liquid separator. The separated molten salt is divided into a major and a minor flow portion with the minor flow portion passing on to a regenerator in which it is contacted with steam and carbon dioxide as strip gas to remove sulfur compounds. The strip gas is further processed to recover sulfur. The depleted, minor flow portion of salt is passed again into contact with the fuel gas for further sulfur removal from the gas. The sulfur depleted, fuel gas then flows through a solid absorbent for removal of salt droplets. The minor flow portion of the molten salt is then recombined with the major flow portion for feed to the venturi.
REFERENCES:
patent: 3671185 (1972-06-01), Lefrancois et al.
patent: 3919390 (1975-11-01), Moore
patent: 3996335 (1976-12-01), Wolk et al.
Moore Raymond H.
Stegen Gary E.
Carlson Dean E.
Glenn Hugh
Jackson Frank H.
The United States of America as represented by the United States
Thomas Earl C.
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