本文通过静态法高压汽液相平衡装置测定了温度293.15-353.15K,压力0.1—2.1MPa条件下R152a-DMF体系的汽液相平衡数据。采用逸度系数法中的PR、SRK状态方程,活度系数法中的NRTL、Wilson模型分别对该体系的汽液相平衡实验数据进行了关联计算,结果表明,Wilson模型能更好地描述该体系在实验温度、压力下的汽液相平衡数据。
The vapor-liquid equilibrium data for R152a-DMF system were determined by a high pressure vapor-liquid equilibrium device at temperature 293.15-353.15 K and pressure 0.1-2.1 MPa conditions, using a static method. The system VLE data were correlated by PR and SRK equations of state in fugacity coefficient method, and NRTL and Wilson models in activity coefficient model. The result shows that VLE data for R152a-DMF system can be well regressed by Wilson model, which can best describe the VLE data of the system under the experimental temperature and pressure.