An energy efficient proprietary mixed solvent for the separation of CO
2 from power plant flue gas streams has been developed. The solvent co
mbines the higher reaction rate of a more reactive solvent and the low
er heat of reaction of a less reactive solvent and achieves mass trans
fer rates similar to more reactive monoethanolamine (MEA) solvent via
a catalytic mechanism. The regeneration energy required is 30% less th
an conventional MEA. Solvent losses and corrosion rates are 10 and 5 t
imes lower than MEA, respectively.