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1. ZA1997/00183 - REGENERATIVE METHOD AND COMPOSITION FOR REMOVING SULFIDES FROM GAS STREAMS

Office
South Africa
Application Number 1997/00183
Application Date 09.01.1997
Publication Number 1997/00183
Publication Date 29.10.1997
Publication Kind B
IPC
B01D
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
CPC
B01D 53/52
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
52Hydrogen sulfide
B01D 53/48
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
B01D 2251/80
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
80Organic bases or salts
Applicants QUAKER CHEMICAL CORP
Inventors TRAUFFER EDWARD A
CAGLAR MUGE
Agents HAHN $ HAHN INC
Priority Data 08587837 10.01.1996 US
Title
(EN) REGENERATIVE METHOD AND COMPOSITION FOR REMOVING SULFIDES FROM GAS STREAMS
Abstract
(EN)
A method and composition for the removal of sulfides from gaseous streams. The method includes contacting the sulfide-containing gas stream with an aqueous scavenging mixture which includes a scavenging compound, an inorganic ion and an oxidation catalyst: regenerating at least a portion of the scavenging compound with an oxygen-containing gas and returning at least a portion of the aqueous scavenging mixture to the contacting zone. A scavenging compound consisting of the reaction product between an aldehyde and an amine is also provided.

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