Process for removing carbonyl sulphide from gases

The invention relates to a process for removing carbonyl sulphide from gases, such as natural gas or coal gasification gases. The aim of the invention is to propose a process for the removal of carbonyl sulphide from gases which is simple and cheap. The object of the invention is to remove the carbo...

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Main Authors ALTHAPP, ANTON, SCHINGNITZ, MANFRED, KUHLBRODT, KLAUS-OTTO.NAT., DDR 9200 FREIBERG, DD, MINAK, PETER, CONRADI, JULIA, DDR 9381 FRANKENSTEIN, DD, SOKOLL, CHRISTOPH, BOLCEK, RAINER, BARCHMANN, MONIKA, DDR 9200 FREIBERG, DD
Format Patent
LanguageEnglish
German
Published 21.09.1989
Subjects
CHEMISTRY
COMPOUNDS THEREOF
FUELS
INORGANIC CHEMISTRY
LUBRICANTS
METALLURGY
NON-METALLIC ELEMENTS
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE
SEPARATION
TECHNICAL GASES CONTAINING CARBON MONOXIDE
TRANSPORTING
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Summary:The invention relates to a process for removing carbonyl sulphide from gases, such as natural gas or coal gasification gases. The aim of the invention is to propose a process for the removal of carbonyl sulphide from gases which is simple and cheap. The object of the invention is to remove the carbonyl sulphide from gases in a single-stage process. According to the invention, the object is achieved by adding the COS-containing gas together with SO2 and a solvent mixture of N-methyl- epsilon -caprolactam and water into an absorption apparatus at room temperature and producing, coarsely crystalline sulphur, by COS hydrolysis and subsequent reaction of the hydrogen sulphide and sulphur dioxide formed.
Bibliography:Application Number: DE19893900393