推广的van der Waals压缩因子及其对超临界流体的应用Augmented van der Waals Compressibility Factor and its Application to Supercritical Fluids
窦晓冬,刘国杰
摘要(Abstract):
利用实验测得的液体的热压力系数,修正原始van der Waals模型中的排斥体积,得到了一个适用于高密度流体的推广的van der Waals压缩因子。将它与Redlich和Kwong提出的吸引项相结合,建立了一个流体状态方程。用某些有代表性的超临界流体的pVT数据检验,结果表明,其对体积、压力和逸度系数的计算准确度可与CS-RK方程相媲美。
关键词(KeyWords): 热压力系数;压缩因子;状态方程;超临界流体
基金项目(Foundation):
作者(Author): 窦晓冬,刘国杰
参考文献(References):
- [1]ZHU Zi-qiang(朱自强),YAO Shan-jing(姚善泾),JIN Zhang-li(金彰礼),Principle ofFluid-PhaseEquilibria and itsApplications[M].Hangzhou(杭州):Press ofZhejiangUniversity(浙江大学出版社),1990.
- [2]WestwaterW,FrantzH W,HildebrandJ H.The internal pressure of pure and mixed liquids[J].PhysRev,1928,31:135.
- [3]CarnahanN F,StarlingK E.Equation of state for nonattracting rigid spheres[J].J ChemPhys,1969,51:635.
- [4]CarnahanN F,StarlingK E.Intermolecular repulsions and the equation of state for fluids[J].AIChE J,1972,18:1184.
- [5]HU Ying(胡英),LU Rui-dong(吕瑞东),LIU Guo-jie(刘国杰),YE Ru-qiang(叶汝强).PhysicalChemistry,Vol3,4th ed.(物理化学第四版)[M].Beijing(北京):Press ofHigherEducation(高等教育出版社),1999.
- [6]LIU Guo-jie(刘国杰),HU Ying(胡英).Thermal pressure coefficient and internal pressure for liquids[J].ActaChimicaSinica(化学学报),1985,43:626.
- [7]RowlinsonJ S.Liquids andLiquidMixtures[M].London:Butterworth,1959.
- [8]RowlinsonJ S,SwintonF L.Liquids andLiquidMixtures3rd ed[M].London:Butterworth,1982.
- [9]FewG A,RigbyM.Thermal pressure coefficient and internal pressure of2,2-dimethylpropane[J].J PhysChem,1975,79:1543.
- [10]BagleyE B,NelsonT P,SciglianoJ M.Three-dimensional solubility parameters and their relationship to internal pressure measurements in polar and hydrogen bonding solvents[J].J PaintTechnol,1971,43:35.
- [11]RedlichO,KwongJ N S.On the thermodynamics of solutions.V An equation of state.Fugacities of gaseous solutions[J].ChemRev,1949,44:233.
- [12]CanjerL N,ManningF S.ThermodynamicProperties andReducedCorrelations forGases[M].Houston:Gulf,1967.
- [13]VargaftikN B.Tables on theThermodynamicalProperties ofLiquids andGases2nd ed[M].NewYork:Wiley,1975.