An Analytic Equation of State Based on SAFT-CP for Binary Non-Polar Alkane Mixtures Across the Critical Point  

作　　者：周文来 密建国 贺刚 于燕梅 陈健 

机构地区：[1]Department of Chemical Engineering, Tsinghua University

出　　处：《Tsinghua Science and Technology》2003年第6期756-759,共4页清华大学学报（自然科学版（英文版）

基　　金：the National Natural Science Foundationof China(No. 2 0 0 0 6 0 0 8)

摘　　要：The description using an analytic equation of state of thermodynamic properties near the critical points of fluids and their mixtures remains a challenging problem in the area of chemical engineering. Based on the statistical associating fluid theory across the critical point (SAFT-CP), an analytic equation of state is established in this work for non-polar mixtures. With two binary parameters, this equation of state can be used to calculate not only vapor-liquid equilibria but also critical properties of binary non-polar alkane mixtures with acceptable deviations.The description using an analytic equation of state of thermodynamic properties near the critical points of fluids and their mixtures remains a challenging problem in the area of chemical engineering. Based on the statistical associating fluid theory across the critical point (SAFT-CP), an analytic equation of state is established in this work for non-polar mixtures. With two binary parameters, this equation of state can be used to calculate not only vapor-liquid equilibria but also critical properties of binary non-polar alkane mixtures with acceptable deviations.

关 键 词：equation of state the statistical associating fluid theory across the critical point (SAFT-CP) critical point vapor-liquid equilibria 

分 类 号：O621[理学—有机化学]