Evaluation of potassium glycinate, potassium lysinate, potassium sarcosinate and potassium threonate solutions in CO2 capture using membranes

Abstract The mitigation process of greenhouse gases emission such as CO2 into the atmosphere is known a vital necessity in modern societies. Nowadays, amino acid salt solutions (AASSs) have been extensively applied promising alternative to alkanol amine absorbents increase sequestration efficiency from disparate gaseous flows. This article aims computationally and theoretically evaluate separation percentage using potassium glycinate (PG), lysinate (PL), sarcosinate (PS) threonate (PT) an inlet mixture inside hydrophobic membrane contactor (HMC). To do this, governing first principal equations HMC are solved computational fluid dynamics procedure based on finite element technique. Acceptable agreement between simulation results experimental values with average deviation approximately 3% implies validation developed two-dimensional (2D) approach this study. analysis obtained demonstrated that PG most efficient solution for molecular ability separating 90% system. order PG > 89.3% PT > 77.4% PL > 72.3% PS.