Process for the purification of gases containing hydrogen sulphide

PCT No. PCT/NL97/00265 Sec. 371 Date Jan. 25, 1999 Sec. 102(e) Date Jan. 25, 1999 PCT Filed May 12, 1997 PCT Pub. No. WO97/43033 PCT Pub. Date Nov. 20, 1997A process for scrubbing a gas containing hydrogen sulphide and/or carbonyl sulphide, in which the spent scrubbing liquid is treated with autotro...

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Hauptverfasser:	DIMITRI YURI SOROKIN, LESLEY ANNA ROBERTSON, JOHANNES GIJSBRECHT KUENEN, CEES JAN NICO BUISMAN, ALBERT JOZEF HENDRIK JANSSEN
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SEPARATION SPIRITS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE VINEGAR WINE
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Zusammenfassung:	PCT No. PCT/NL97/00265 Sec. 371 Date Jan. 25, 1999 Sec. 102(e) Date Jan. 25, 1999 PCT Filed May 12, 1997 PCT Pub. No. WO97/43033 PCT Pub. Date Nov. 20, 1997A process for scrubbing a gas containing hydrogen sulphide and/or carbonyl sulphide, in which the spent scrubbing liquid is treated with autotrophic sulphide-oxidizing bacteria capable of oxidizing at high pH, and elemental sulphur is obtained, the elemental sulphur is separated and the treated scrubbing liquid is recycled to the gas scrubbing step. Before recycling, the scrubbing liquid may further be treated with heterotrophic thiosulphate-oxidizing bacteria which produce polythionate which is useful for further enhancing the sulphide-scrubbing capacity of the scrubbing liquid.