The “coordinative effect” was discovered in MEA + DEA solvents in 2018 via CO₂ absorption, and it could enhance both CO₂ absorption & desorption within MEA + RR’NH solvents. This study expanded the scope out of MEA + DEA and implemented it by blending MEA into BEA(RR’NH)+AMP solvents. The CO₂ absorption, desorption and mass transfer performance were evaluated onto MEA + BEA + AMP (0.1 + 2 + 2∼0.5 + 2 + 2 mol/L) in the batch reactor, recirculation process, and lab-scale absorber with DX structured packing and compared with BEA + AMP (2 + 2 mol/L). The CO₂ absorption-desorption parameters were adopted to analyze the coordinative effects. Then, the mass transfer of these 5 tri-solvents were tested by overall mass transfer coefficient (K_Ga_v) to evaluate the gas-liquid interactions in an industrial CO₂ absorber. The results indicated that the “coordinative effect” of MEA + RR’NH resulted in superior performance of MEA + BEA + AMP (0.3∼0.4 + 2 + 2) over BEA + AMP (2 + 2) on both CO₂ absorption and desorption sides, contrary to the conventional concept that MEA enhances absorption but deteriorates desorption of amine blends.

在2018年，MEA + DEA溶剂通过吸收CO ₂发现了“协同效应” ，它可以增强MEA + RR'NH溶剂中的CO ₂吸收和解吸。这项研究扩大了MEA + DEA的范围，并通过将MEA混入BEA（RR'NH）+ AMP溶剂中来实现了这一目标。在分批反应器，再循环过程和具有DX结构的实验室规模的吸收器中，对MEA + BEA + AMP（0.1 + 2 + 2〜0.5 + 2 + 2 mol / L）上的CO ₂吸收，解吸和传质性能进行了评估包装并与BEA + AMP（2 + 2 mol / L）进行比较。采用CO _2的吸收-解吸参数分析协同效应。然后，通过总传质系数（）来测试这5种三溶剂的传质ķ _ģ一个_v），以评估在工业CO气液相互作用₂吸收器。结果表明，MEA + RR'NH的“协同效应”使MEA + BEA + AMP（0.3〜0.4 + 2 + 2）的性能优于BEA + AMP（2 + 2）在CO ₂吸收和解吸方面与MEA增强吸收但降低胺共混物的脱附的传统概念相反。