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1. WO1997025126 - REGENERATIVE METHOD AND COMPOSITION FOR REMOVING SULFIDES FROM GAS STREAMS

Publication Number WO/1997/025126
Publication Date 17.07.1997
International Application No. PCT/US1997/000324
International Filing Date 09.01.1997
Chapter 2 Demand Filed 08.08.1997
IPC
B01D 53/48 2006.1
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 or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
B01D 53/52 2006.1
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 or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
52Hydrogen sulfide
CPC
B01D 2251/80
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
80Organic bases or salts
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 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
Applicants
  • QUAKER CHEMICAL CORPORATION [US]/[US]
Inventors
  • TRAUFFER, Edward, A.
  • CAGLAR, Muge
Agents
  • DONATIELLO, Guy, T.
  • SCHWABE, SANDMAIR, MARX
Priority Data
08/587,83710.01.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REGENERATIVE METHOD AND COMPOSITION FOR REMOVING SULFIDES FROM GAS STREAMS
(FR) PROCEDE ET COMPOSITION DE REGENERATION DESTINES A ENLEVER DES SULFURES DE COURANTS GAZEUX
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.
(FR)
On décrit un procédé ainsi qu'une composition destinés à enlever des sulfures de courants gazeux. Ce procédé consiste à mettre en contact le courant gazeux contenant les sulfures avec un mélange aqueux d'élimination, lequel comporte un composé d'élimination, un ion inorganique ainsi qu'un catalyseur d'oxydation, puis à régénérer au moins une portion du composé d'élimination à l'aide d'un gaz contenant de l'oxygène, et enfin à renvoyer au moins une portion du mélange d'élimination aqueux vers la zone de mise en contact. On décrit également un composé d'élimination consistant en un produit de réaction entre un aldéhyde et une amine.
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