CO2 capture from fossil fuel power plant flue gas using aqueous solution of renewably prepared alkanolamine

Abstract

In this study, K2CO3/KHCO3 as hydroxyl radical scavengers was mixed with aqueous EAE to form a new absorbing solvent i.e. EHRS solvent which will be used for the reactive absorption of CO2. Degradation of the EHRS solvent in presence of O2 (oxidative degradation) was examined by employing accelerated experimental conditions at 150°C. The physicochemical properties such as density, viscosity, and diffusivity and solubility of CO2 in EHRS solvent at various experimental conditions were estimated. Furthermore, kinetics of reactive absorption of CO2 in EHRS solvent was explored by using a stirred cell reactor using a fall in CO2 pressure technique.