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

摘要

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.