An energy efficient mixed solvent for the separation of CO2

Abstract

An energy efficient proprietary mixed solvent for the separation of CO2 from power plant flue gas streams has been developed. The solvent combines the higher reaction rate of a more reactive solvent and the lower heat of reaction of a less reactive solvent and achieves mass transfer rates similar to more reactive monoethanolamine (MEA) solvent via a catalytic mechanism. The regeneration energy required is 30% less than conventional MEA. Solvent losses and corrosion rates are 10 and 5 times lower than MEA, respectively. © 1995.