PROCESS FOR ABSORPTION OF CO2 FROM A GAS MIXTURE USING AN AQUEOUS SOLUTION OF A DIAMINE

• Main Authors: SCHNEIDER, ROLF, SCHRAVEN, ALEXANDER, NEUMANN, MANFRED, RINKER, STEFANIE, ROLKER, JÖRN, NIEMEYER, JOCHEN
• Format: Patent
• Language: English; French; German
• Published: 19.10.2016
• Subjects: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG]; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

CO2 is absorbed from a gas mixture by bringing the gas mixture into contact with an absorption medium comprising water and at least one amine of formula (I) R1R2NCH2CH2CHR4NHR3,  (I) where R1, R2 and R3 are, independently of one another, C1-C3-alkyl radicals, R4 is hydrogen, methyl or ethyl and the radicals R1, R2, R3 and R4 together comprise not more than 5 carbon atoms.