FIELD: gas treatment.
SUBSTANCE: removal of H2S from gas stream is accomplished by separating H2S from gas phase in stage wherein treatment is carried out in scrubber with aqueous solution. Hydrogen sulfide contained in aqueous solution is subjected to biological oxidation in bioreactor to produce elementary sulfur, which is separated from aqueous solution. Gas stream, before and during scrubber treatment stage, is cooled to temperature below 75оС to condense water vapor from gas stream and sending at least part of condensed water into bioreactor to fill up deviated stream and removal of salts.
EFFECT: reduced power consumption and avoided necessity of feeding outside water into bioreactor.
12 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF BIOLOGICALLY REMOVING SULFIDE | 1997 |
|
RU2161529C1 |
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| HIGH-EFFICIENCY METHOD OF PRODUCING SULFUR FROM ACID GAS FLOW | 2005 |
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