1　引言乙醇胺 (ＭＥＡ)吸收ＣＯ2 具有吸收速度快 ,吸收容量大 ,成本低 ,易解吸等特点 ,已成为工业上吸收ＣＯ2 常用的吸收剂。本文利用ｐＨ值法进行ＭＥＡ吸收ＣＯ2 动力学研究。该方法具有测量速度快 ,操作方便 ,可连续记录等特点。2　理论依据乙醇胺水溶液与ＣＯ2 之间的总 1 Introduction Ethanolamine (MEA) CO2 absorption has the characteristics of fast absorption, large absorption capacity, low cost, easy desorption, etc., and has become a commonly used absorbent for industrial absorption of CO2. In this paper, the pH value of MEA CO2 absorption kinetics. The method has the advantages of fast measuring speed, convenient operation and continuous recording. 2 Theoretical Basis The total between ethanolamine aqueous solution and CO2