化工分离中相平衡研究进展

Recent progress in the study of phase equilibria in chemical engineering separation

相平衡是分离过程的理论基础,对化工分离过程中的理论研究和工业应用具有极为重要的价值。本文在介绍了汽-液相平衡热力学模型及固-液相平衡测定方法的基础上,综述了近年来以离子液体为溶剂的汽-液相平衡以及激光动态监测法固-液相平衡的研究进展,介绍了典型物系的相平衡研究近况,并在最后提出了几点对未来化工分离中相平衡重点研究方向的看法。

Phase equilibrium is the theoretical foundation of chemical engineering separation,and it is of great importance in the development and engineering application of separation processes. After a brief introduction to the thermodynamic model of vapor-liquid equilibria and the methods of determining solid-liquid equilibria,recent progress in the study of vapor-liquid equilibria with ionic liquids,as well as the study of solid-liquid equilibria using the laser dynamic method are reviewed. The current status of research for some typical systems is briefly introduced and future directions of progress in this area are also suggested.