Fremgangsmåde til fjernelse af hydrogensulfid fra naturgas
A method for removing hydrogen sulfide (H 2 S) from an acid gas comprises feeding the gas to a membrane separation unit, collecting the product gas from the membrane unit, heating the permeate stream to the necessary inlet temperature for catalytic oxidation of H 2 S and feeding the heated permeate...
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Zusammenfassung: | A method for removing hydrogen sulfide (H 2 S) from an acid gas comprises feeding the gas to a membrane separation unit, collecting the product gas from the membrane unit, heating the permeate stream to the necessary inlet temperature for catalytic oxidation of H 2 S and feeding the heated permeate stream to a catalytic oxidation unit, where H 2 S is oxidized to SO 2 . The heating of the permeate stream is accomplished by using a fraction of the feed gas to heat the permeate stream in a separate heater or by using a steam-fired heater. The method is especially suited for use on an off-shore facility. |
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