In this study, the effect of absorption pressure and temperature towards the CO₂ absorption capacity and rate of choline chloride - monoethanol amine deep eutectic solvent (ChCl-MEA DES) was evaluated. Water mixing into ChCl-MEA DES was also examined as a method to improve CO₂ absorption behavior. Equilibrium experiments were done in a batch reactor and the data was analyzed using response surface methodology (RSM). Results suggested that the dominant mode of CO₂ absorption by ChCl-MEA DES was physical absorption. The maximum capacity of CO₂ absorption obtained in this study was 0.379 mol-CO₂/mol-DES from absorption at (10 bar, 40 °C) using DES with 50 %v water. Water mixing up to 50 %v was found to nearly double the CO₂ absorption capacity of ChCl-MEA DES compared to neat DES. Study into CO₂ absorption rate by ChCl-MEA DES found that it is mainly influenced positively by pressure and water content, while not significantly influenced by temperature. CO₂ absorption rate of ChCl-MEA DES with 50 %v water was found to be on average twice of that of neat DES. It was also found that water content up to 50 %v does not change the mechanism of CO₂ absorption by ChCl-MEA DES.

在这项研究中，评估了吸收压力和温度对CO ₂吸收容量和胆碱氯化物-单乙醇胺深共熔溶剂（ChCl-MEA DES）速率的影响。还检查了将水混入ChCl-MEA DES中作为改善CO ₂吸收行为的方法。在间歇反应器中进行平衡实验，并使用响应面方法（RSM）分析数据。结果表明，ChCl-MEA DES吸收CO ₂的主要方式是物理吸收。这项研究中获得的最大CO ₂吸收容量为0.379 mol-CO ₂/ mol-DES，使用DES与50％v的水在（10 bar，40°C）下吸收。发现与纯DES相比，混合至50％v的水几乎使ChCl-MEA DES的CO ₂吸收能力提高一倍。通过ChCl-MEA DES对CO ₂吸收率的研究发现，它主要受压力和水含量的正影响，而不受温度的显着影响。发现50％v的水对ChCl-MEA DES的CO ₂吸收率平均是纯DES的两倍。还发现含水量高达50％v不会改变ChCl-MEA DES吸收CO ₂的机理。