CRCU

Chemical Research in Chinese Universities ›› 2005, Vol. 21 ›› Issue (2): 209-212.

• Articles • Previous Articles     Next Articles

Extension of Huron-Vidal-type Mixing Rule to Three-parameter Harmens-Knapp Cubic Equation of State

HAN Xiao-hong, WANG Qin, CHEN Guang-ming, CUI Xiao-long   

  1. Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, P. R. China
  • Received:2004-05-14 Online:2005-03-24 Published:2011-07-27

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Abstract: In this paper was extended the HV-type mixing rules to Harmens-Knapp cubic equation state (HK CEOS).The new HV-type mixing rule with HK CEOS was tested for Vapor-liquid equilibrium(VLE) of different polar and nonpolar systems.The tested results are in good agreement with existing experimental data within a wide range of temperatures and pressures.In comparison with the VDW mixing rule, the new mixing rule gives much better predictions for the VLE of nonpolar and polar systems.

Key words: Equation of state, Activity coefficient, Vapor-liquid equilibrium, Mixing rule