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1. MYPI 2014003104 - METHOD FOR ABSORBING CO2 FROM A GAS MIXTURE

Office
Malaisie
Numéro de la demande PI 2014003104
Date de la demande 22.04.2013
Numéro de publication PI 2014003104
Date de publication 07.11.2013
Type de publication A
CIB
B
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
Déposants Evonik Operations GmbH
Inventeurs WILLY, BENJAMIN
RINKER, STEFANIE
NEUMANN, MANFRED
NIEMEYER, JOCHEN
KEUP, MICHAEL
WITTHAUT, DANIEL
SEILER, MATTHIAS
ROLKER, JÖRN
SCHNEIDER, ROLF
DEMBKOWSKI, DANIEL
BREHME, VOLKER
Mandataires PATRICK MIRANDAH
Données relatives à la priorité 102012207509 07.05.2012 DE
Titre
(EN) METHOD FOR ABSORBING CO2 FROM A GAS MIXTURE
Abrégé
(EN) In a method of absorbing CO2 from a gas mixture the use of an absorption medium comprising water and at least one amine of formula (I) where R1 is a - ( CH2 ) n- ( XCH2CH2 ) m- Y - R3 radical where R3 = hydrogen or an alkyl radical having from 1 to 6 carbon atoms, X and Y are each, independently of one another, NR3 , oxygen, SO or S0 2 , where in the case of Y = SO and in the case of Y = S0 2 , R3 is not hydrogen, and Y- R3 can be an N-rnorpholinyl radical or an N-piperazyl radical, n = 2 to 4, rn =Oto 4 and R2 is hydrogen, an alkyl radical having from 1 to 6 carbon atoms or a radical R1 , where mis not O when R2 is not a radical R1, Y = NR3 and Y - R3 is not an N-morpholinyl radical and not an N-piperazyl radical, makes it possible to avoid precipitation of a solid during the absorption of CO2 and a separation into two liquid phases during the regeneration of the absorption medium. (No suitable figure)