NRTL parameters for some type I and II ternary systems

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Title: NRTL parameters for some type I and II ternary systems
Authors: Labarta, Juan A. | Olaya, Maria del Mar | Serrano Cayuelas, María Dolores | Velasco, Raúl | Marcilla, Antonio
Research Group/s: Procesado y Pirólisis de Polímeros | Cálculo del Equilibrio entre Fases
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química
Keywords: NRTL | Equilibrium | Correlation | LL | Ternary
Knowledge Area: Ingeniería Química
Date Created: 15-Sep-2008
Issue Date: Oct-2008
Abstract: Difficulties associated with the phase equilibrium data correlations, such as convergence, objective function definition, initial parameters value dependence, and existence of multiple or metastable solutions, make difficult the correlation of the experimental liquid-liquid equilibrium data for some systems. In this paper, a robust algorithm, proposed by the authors previously, that has provided good results in the correlation of the equilibrium data for other special systems such as island-type ternary systems, or liquid-solid (LS) and liquid-liquid-solid (LLS) equilibrium data [1], has been used to correlate 11 ternary systems that have not been correlated in the DECHEMA Chemistry Data Series [2] or, if they were, results were inconsistent with the number of miscible pairs in the system. A good representation of the LLE data for all the systems has been achieved using the NRTL model.
Description: Póster presentado en el 11th Mediterranean Congress of Chemical Engineering, EXPOQUIMIA’08, Barcelona, 20-24 octubre 2008.
Sponsor: University of Alicante and Generalitat Valenciana (project GV/2007/125).
Language: eng
Type: info:eu-repo/semantics/conferenceObject
Rights: Solo para uso docente o de investigación
Peer Review: si
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