HYDROGEN SULFIDE-CARBON DIOXIDE MEMBRANE SEPARATION PROCESS USING PERFLUORINATED MEMBRANES

HYDROGEN SULFIDE-CARBON DIOXIDE MEMBRANE SEPARATION PROCESS USING PERFLUORINATED MEMBRANES

A process for recovering sulfur from a sour gas is provided. The process includes the steps of: providing the sour gas to a membrane separation unit having a carbon dioxide-selective membrane that comprises a perfluoropolymer, wherein the sour gas comprises carbon dioxide and at least 1 mol % hydrog...

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Bibliographische Detailangaben
Hauptverfasser: BAKER, Richard, DUVAL, Sebastien A, MERKEL, Tim, HAMAD, Feras, AL-OTAIBI, Faisal D, LOKHANDWALA, Kaeeid, VAIDYA, Milind M, BAHAMDAN, Ahmad A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Zusammenfassung:A process for recovering sulfur from a sour gas is provided. The process includes the steps of: providing the sour gas to a membrane separation unit having a carbon dioxide-selective membrane that comprises a perfluoropolymer, wherein the sour gas comprises carbon dioxide and at least 1 mol % hydrogen sulfide; separating the sour gas using the carbon dioxide-selective membrane in the membrane separation stage to obtain hydrogen sulfide-enriched gas and hydrogen sulfide-stripped gas, wherein the hydrogen sulfide-enriched gas has a hydrogen sulfide concentration of at least 20 mol %, and wherein the hydrogen sulfide-stripped gas comprises carbon dioxide; and processing the hydrogen sulfide-enriched gas in a sulfur recovery unit to obtain sulfur.