Add time:07/19/2019         Source:sciencedirect.com

Vapor liquid equilibrium (VLE) data of CO2 solubility in aqueous amine solutions are essential for solving problems associated with flue gas purification. This work presents new VLE data of 3-amino-1-propanol, 4-Amino-1-butanol (cas 13325-10-5) and 5-amino-1-pentanol, respectively. An equilibrium cell, connected to a gas chromatograph was first utilized to measure the partial pressures of CO2 over 2-amino-1-ethanol (MEA). The setup was validated against literature data and is capable of producing reliable and reproducible results. Measurements of CO2 solubility in these primary alkanolamines at two different concentrations (5 molar and 30 wt%) were performed at a temperature of 40 °C. Results showed that these amines have higher CO2 solubility than MEA, and we found that increasing the chain length increase the solubility of CO2.

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