Liquid absorbing acidic gases and use thereof in deacidification

Details Liquid absorbing acidic gases and use thereof in deacidification Liquid absorbing acidic gases and use thereof in deacidification

1993-05-06

1994-01-11

Langel, Wayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

252189, 423229, C01B 320, C09K 300

Patent

active

052778851

ABSTRACT:
Liquid absorbing acid gas compounds presenting an improved CO.sub.2 absorption capacity, said absorbing liquid containing one or a plurality of tertiary alkanolamines and a CO.sub.2 absorption activator. The activator is comprised of at least one amino compound selected among polyalkylene-polyamines, alkylenediamines or cycloalkylenediamines, the aminoalkylated compounds of heterocycles such as piperazine, piperidine, furan, thiophene, tetrahydrofuran and tetrahydrothiophene, the alkoxyalkylamines and the alkylmono-alkanolamines having an alkyl residue in at least C.sub.2. Application of said absorbent liquid to the deacidification of gases containing CO.sub.2 and optionally other acid gas compounds, particularly H.sub.2 S and/or COS.

REFERENCES:
patent: 4376102 (1983-03-01), Thaler et al.

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