Fremgangsmåde til opfangning af hydrogensulfid fra gasser ved hjælp af glyoxal

A method is described for trapping hydrogen sulphide from gases, the hydrogen sulphide-containing gas being passed into an aqueous solution of glyoxal, at least 15% strength by weight, at a pH of this solution of 5 to 11 until the molar ratio of glyoxal to hydrogen sulphide is 3 to 2. The solid reac...

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Bibliographic Details
Main Authors PAULUS, ERICH FRIEDRICH, KYAW-NAING, ELENA, PORZ, CHRISTOPH, CHRISTENSEN, BERND, GULDEN, WALTER
Format Patent
LanguageDanish
Published 31.10.1994
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL
CHEMISTRY
FIRELIGHTERS
FUELS
FUELS NOT OTHERWISE PROVIDED FOR
LIQUEFIED PETROLEUM GAS
LUBRICANTS
METALLURGY
NATURAL GAS
ORGANIC CHEMISTRY
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K
TECHNICAL GASES CONTAINING CARBON MONOXIDE
TRANSPORTING
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Summary:A method is described for trapping hydrogen sulphide from gases, the hydrogen sulphide-containing gas being passed into an aqueous solution of glyoxal, at least 15% strength by weight, at a pH of this solution of 5 to 11 until the molar ratio of glyoxal to hydrogen sulphide is 3 to 2. The solid reaction product obtained as a result, which contains bound hydrogen sulphide, is separated off. As a result of its stability and insolubility in acids and bases, it can be disposed of in landfill without problem.
Bibliography:Application Number: DK19900125840T