Enhancement of CO2 removal by promoted MDEA solution in a hollow fiber membrane contactor: A numerical and experimental study

In this work, carbon dioxide (CO2) loading capacity of methyldiethanolamine (MDEA) solution promoted by potassium lysinate (KLys) was experimentally measured using a gas absorption setup at different concentrations and temperatures. The CO2 removal efficiency the MDEA + KLys investigated for CO2/N2 mixture computational fluid dynamic (CFD) simulations in hollow fiber membrane contactor (HFMC). effects operating conditions including solvent concentration, flow rate, inlet concentration module length on were also studied. experimental results revealed that increases with increasing solution, while decreases as temperature increases. simulation indicated has higher compared to pristine MEA solutions. rate length, whereas zeolitic imidazolate framework-8 (ZIF-8), sorbent, then incorporated into its effect examined. ZIF-8 nano-absorbent showed than absorbent, where introducing 0.4 wt.% enhanced from ⁓96% ⁓99%. work suggest both absorbent are promising candidates processes. However, practical use well complete investigation, their behavior should be assessed other parameters such reactivity CO2, corrosion regeneration performance.