Precipitating amino acid solutions

Bio-Energy with CCS (BECCS) performance evaluation: Efficiency enhancement and emissions reduction

“…phase absorption systems. Liquid-solid systems have the advantages of increased CO 2 absorption capacity and improved energy eciency in the stripper[67]. In liquid-liquid systems, energy consumption reduces due to: (i) the decrease of the liquid amount sent to the stripper, and (ii) a reduction of the desorption temperature (characteristic of biphasic solvents)[68].…”

Homogeneous Carbon Capture and Catalytic Hydrogenation: Toward a Chemical Hydrogen Battery System

“…Alternatively, CO 2 capture processes with amino acids (AAs) and their alkaline salts have generally attracted much attention due to their ionic nature, low vapor pressure, low toxicity, and high biodegradation potential. − In the zwitterion mechanism, amino acids react with carbon dioxide to form a zwitterion, followed by the deprotonation step in which the zwitterion reacts with a base, for example, a second molecule of amino acid, water, or hydroxides (Scheme c). Already in 1935, the potassium salt of monomethylaminopropionic acid was first used industrially to remove acid gases (containing H 2 S and CO 2 ) from gas streams in BASF’s gas treatment known as the Alkazide Process .…”

“…Farbenindustrie to treat gas of high sulfur content and has been used since then in many countries all over the world. The carbon capture process was further developed applying various AAs such as glycine, alanine, histidine, lysine, and their alkaline salts. ,− Those AAs can be produced by microorganisms in a large scale . For example, lysine is industrially produced by microbial fermentation at a >2.2 million tonnes scale per year .…”