Absorption performance of CO2 in high concentrated [Bmim][Lys]-MDEA aqueous solution

Add time:08/18/2019    Source:sciencedirect.com

The absorption performance of CO2 in 1-butyl-3-methylimidazolium lysinate ([Bmim][Lys]) promoted N-methyldiethanolamine (MDEA) aqueous solution was investigated at the temperatures ranging from 303.2 K to 323.2 K. The mass fractions of MDEA and [Bmim][Lys] respectively ranged from 0.3 to 0.45 and 0.05 to 0.15. The viscosities of CO2-unloaded and CO2-loaded MDEA-[Bmim][Lys] aqueous solutions were measured and modeled. The influences of temperature and concentration on the absorption capacity of CO2 were determined. The effects of temperature, solution concentration and solution viscosity on the absorption rate were illustrated.

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