Solvents for CO2 capture. Structure-activity relationships combined with vapour-liquid-equilibrium measurements
Copyright policy )Solvents for CO2 capture. Structure-activity relationships combined with vapour-liquid-equilibrium measurements
In this study a systematic approach was chosen to test and characterize amine systems for CO2 capture. Vapour-liquid-equilibrium measurements were performed on a homologue series of amines, with ethylene amine as base structure. Various functional groups were used that ranged in chemical and physical properties. The effect of the addition of the following functional groups was investigated: -NH2 (ethylene diamine), -COOH (ß-alanine), -SH (cysteamine), SO3H (taurine) and -OH (monoethanolamine). Of these amine systems, MEA and taurine showed comparable behaviour in CO2 absorption and desorption. ß-alanine formed relatively more (bi)carbonate. As expected, no direct correlation in absorption behaviour with pKa was found, whereas there was a linear correlation between desorption behaviour at a fixed partial pressure with pKa. © 2011 Published by Elsevier Ltd.
- Delft University of Technology Netherlands
VLE, Taurine, Cysteamine, ß-alanine, Environment, Co capture, Fluid Mechanics Chemistry & Energetics Life, Absorption, Ethylene, Energy(all), Amines, TS - Technical Sciences EELS - Earth, Ethylene amine, Amination, Amino alcohol, Global warming, Organic polymers, Monoethanolamine, Ethylene diamine, Liquids, Monoethanolamine (MEA), Environmental and Life Sciences, CO2 capture, GTR - Gas Treatment CBRN - CBRN Protection, Amino acid, Greenhouse gases, Alcohols, Functional groups, β-alanine, Amino acids, Desorption, Co2 capture
VLE, Taurine, Cysteamine, ß-alanine, Environment, Co capture, Fluid Mechanics Chemistry & Energetics Life, Absorption, Ethylene, Energy(all), Amines, TS - Technical Sciences EELS - Earth, Ethylene amine, Amination, Amino alcohol, Global warming, Organic polymers, Monoethanolamine, Ethylene diamine, Liquids, Monoethanolamine (MEA), Environmental and Life Sciences, CO2 capture, GTR - Gas Treatment CBRN - CBRN Protection, Amino acid, Greenhouse gases, Alcohols, Functional groups, β-alanine, Amino acids, Desorption, Co2 capture
