Catalytic CO2-MEA Absorption with Solid Chemical MgCO3

Abstract

Solid chemicals MgCO3 / Mg(OH)2(MgCO3)4˙5H2O were selected to facilitate CO2 absorption with MEA solvent. The catalytic carbamate formation was confirmed here, to verify heterogeneous catalysis. Since the aqueous hydroxide [OH-] can serve homogeneous catalyst of carbamate formation, MgCO3 can serve as heterogeneous catalysts/promotors implemented for CO2 absorption in the amine scrubbing process. The solid MgCO3 accelerate the CO2 absorption in MEA solvent properly. These solid chemicals proved to be good candidates for heterogeneous catalytic CO2 absorption with amine.