A New Corresponding States Model for the Estimation of Thermophysical Properties of Long-chain n-alkanes

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

António Queimada (Autor) FEUP; Erling Stenby (Autor) Outra; Isabel Marrucho (Autor) Outra; João Coutinho (Autor) Outra

Revista

Título: Fluid Phase Equilibria

Vol. 212 Nº 1-2

Páginas: 303-314

ISSN: 0378-3812

Editora: Elsevier

Indexação

ISI Web of Science

Scopus

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

DOI: 10.1016/S0378-3812(03)00272-3

Abstract (EN): The interest in phase equilibrium and thermophysical properties of mixtures containing long chain hydrocarbons is increasing. Despite the industrial interest of these systems, the available experimental data are scarce, while new models are required. Corresponding States Theory has been used with success for the estimation of properties of pure components and mixtures of small molecules. This work shows how this theory can be extended to the evaluation of liquid density, vapour pressure and viscosity of long chain molecules in a broad temperature range, based on information of lower members of the same homologous series. Results for the n-alkane series showed that this new model is able to predict liquid density, vapour pressure and viscosity with percent average absolute deviations of 0.44, 0.52, and 3.15%, respectively. (C) 2003 Elsevier B.V. All rights reserved.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12