CO 2 Absorption by Alkali-modified Amino Acid Salts

The present study attempted to impregnate alkali metals to amino acid in order to improve absorption capacity. A used amino acid was glycine, of which pH increased up to about 11 with the addition of alkalies. absorption capacity of amino acid salts was evaluated in a batch and a continuous process. The absorption capacity appeared in turns as; Sodium Glycinate Lithium Glycinate > Potassium Glycinate. Amino acid salts showed lower absolute capacity of absorption than primary amine (Monoethanolamine) at . In a continuous absorption with 10% flow, the increasing the reaction temperature, the increasing rate of absorption for amino and was higher that of than amino absorbent.