The fundamental characteristics of CO₂ desorption from absorbents were assessed to highlight the importance of CO₂ desorption in a CO₂ absorption field. Four monoethanolamine (MEA)-based absorbents were tested for their absorption and desorption performances, including MEA/water, MEA/ethanol, and two kinds of MEA/ethanol/water. MEA/ethanol exhibited a higher absorption rate, higher regeneration fraction, and lower desorption temperature for CO₂ desorption as compared to others. Compared with MEA/water, MEA/ethanol had a 20 °C lower desorption temperature, 41.72 % higher average desorption rate (in the first 20 min) and 5.52 percentage points higher regeneration fraction. MEA/ethanol/water showed very poor desorption performance, with regeneration fractions between 64–82 %. The desorption energy requirement of MEA/ethanol is significantly lower than that of MEA/water with all absorbent CO₂ loading ratios. At the CO₂ loading of 0.07 mol CO₂/mol MEA, the desorption energy requirement of MEA/ethanol was 80 % less than that of MEA/water. For all absorbents, the desorption process took 3–5 times longer than that required for the absorption equilibrium to be reached, and absorbent CO₂ loading had a significant influence on CO₂ absorption with a higher absorption rate at lower CO₂ loading. The results also indicated that adding organic solvents such as ethanol could reduce the desorption energy consumption and desorption temperature, which is conducive to absorption and also important for selecting the right absorbent.

CO的基本特性₂从吸收剂解吸被评定为突出CO的重要性₂在CO解吸₂吸收字段。测试了四种基于单乙醇胺（MEA）的吸收剂的吸收和解吸性能，包括MEA /水，MEA /乙醇和两种MEA /乙醇/水。MEA /乙醇显示出更高的吸收率，更高的再生分数和更低的CO ₂解吸温度与其他相比解吸。与MEA /水相比，MEA /乙醇的解吸温度低20°C，平均解吸速率（前20分钟）提高41.72％，再生分数提高5.52个百分点。MEA /乙醇/水的解吸性能非常差，再生分数在64-82％之间。在所有吸收性CO ₂负载比下，MEA /乙醇的解吸能量需求明显低于MEA /水。在0.07 mol CO ₂ / mol MEA的CO ₂负载下，MEA /乙醇的解吸能量需求比MEA /水的解吸能量需求低80％。对于所有吸收剂，解吸过程所花的时间比达到吸收平衡所需的时间长3–5倍，吸收剂CO ₂负荷对CO _2的吸收有显着影响，在较低的CO ₂负荷下吸收率较高。结果还表明，添加有机溶剂（如乙醇）可以减少解吸能量消耗和解吸温度，这有利于吸收，对于选择合适的吸收剂也很重要。