Recommended NRTL Model Parameters by Simultaneous Correlation of VLE, Infinite Dilution Activity Coefficients and Excess Enthalpy Data

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jürgen Rarey²  Jürgen Gmehling²  Katsumi Tochigi¹ 

[1] Department of Materials and Applied Chemistry, Nihon University;Department of Industrial Chemistry, University of Oldenburg

关键词: NRTL Parameter;    VLE;    Infinite Dilution Activity Coefficient;    Excess Enthalpy;   

DOI  :  10.1252/jcej.08we123

来源: Maruzen Company Ltd

【 摘 要 】

References(12)Cited-By(1)This paper deals with the determination of recommended temperature dependent NRTL parameters by simultaneous correlation of VLE-, γ ∞-, and hE data from the Dortmund Data Bank (DDB) using an interactive program package. Correlation results for selected mixtures are discussed in detail. The program package RECVAL is directly interfaced to the Dortmund Data Bank, makes extensive use of graphics for data representation and may be extended for the correlation and prediction of further mixture or pure component data. To ensure rapid conversion in case of a large amount of data, simultaneous convergence of the outer parameter fitting loop and the inner phase equilibrium iterations is employed. Recommended temperature dependent NRTL parameters have been determined for 133 binary systems. These parameters have been obtained by a simultaneous fit to VLE-, γ ∞-, and hE-data stored in DDB.

【 授权许可】

Unknown