Abstract: High-pressure vapor-liquid equilibrium data for the binary systems of carbon dioxide with methyl acrylate and with propyl acrylate were measured at pressure from 1.00 to 12.00 MPa and temperature in the range of 313.0—373.0 K. Experimental results were correlated with the Peng-Robinson equation of state with the two-parameter van der Waals mixing rule. At the same time，the Henry’s coefficient，partial molar enthalpy change and partial molar entropy change of CO2 during dissolution at different temperature were also calculated.

摘要： 利用可变体积高压釜，在313 K、333 K、353 K和373 K下，测定了二氧化碳分别与丙烯酸甲酯和丙烯酸丙酯二元体系的气液两相平衡数据。应用Peng-Robinson（P-R）状态方程对实验数据进行计算，计算结果与实验结果具有较高的一致性。本文还计算得到了不同温度和压力下二氧化碳在丙烯酸酯溶解过程中的Henry系数、偏摩尔焓变和偏摩尔熵变等热力学数据。