Optimization of a cubic equation of state and van der Waals mixing rules for modeling the phase behavior of complex mixtures



Título del documento: Optimization of a cubic equation of state and van der Waals mixing rules for modeling the phase behavior of complex mixtures
Revista: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000361546
ISSN: 0035-001X
Autores: 1
Instituciones: 1Universidad de La Serena, Departamento de Física, La Serena, Coquimbo. Chile
Año:
Periodo: Dic
Volumen: 58
Número: 6
Paginación: 510-514
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés A thermodynamic modeling for the vapor-liquid equilibrium of binary systems of supercritical fluids and ionic liquids is presented. The van der Waals mixing rules and a cubic equation of state are used to evaluate the fugacity coefficient on the systems. Then, a particle swarm algorithm was used to minimize the difference between calculated and experimental bubble pressure, and calculate the interaction parameters for all systems used. The results show that the bubble pressures were correlated with low deviations between experimental and calculated values. These deviations show that the proposed model is a good technique to optimize the interaction parameters of the phase equilibrium of binary systems containing supercritical fluids and ionic liquids
Disciplinas: Física y astronomía
Palabras clave: Física de materia condensada,
Optimización por enjambre de partículas,
Fase de equilibrio,
Líquidos iónicos,
Ecuaciones de estado
Keyword: Physics and astronomy,
Condensed matter physics,
Particle swarm optimization,
Phase equilibrium,
Ionic liquids,
State equations
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