Modeling thermodynamic properties of aqueous single-solute and multi-solute sugar solutions with PC-SAFT

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Christoph Held (Autor) Outra; Aristídes P. Carneiro (Autor) FEUP; Oscar Rodríguez (Autor) FEUP; Eugénia A. Macedo (Autor) FEUP; Gabriele Sadowski (Autor) Outra

Revista

Título: AICHE Journal

Vol. 59 Nº 12

Páginas: 4794-4805

ISSN: 0001-1541

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 27 Citações

ISI Web of Science

Scopus - 46 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas

Projetos Associados

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

Outras Informações

ID Authenticus: P-008-GV8

DOI: 10.1002/aic.14212

Abstract (EN): The Perturbed-Chain Statistical Association Fluid Theory is applied to simultaneously describe various thermodynamic properties (solution density, osmotic coefficient, solubility) of aqueous solutions containing a monosaccharide or a disaccharide. The 13 sugars considered within this work are: glucose, fructose, fucose, xylose, maltose, mannitol, mannose, sorbitol, xylitol, galactose, lactose, trehalose, and sucrose. Four adjustable parameters (three pure-sugar parameters and a k(ij) between sugar and water that was allowed to depend linearly on temperature) were obtained from solution densities and osmotic coefficients of binary sugar/water solutions at 298.15 K available in literature. Using these parameters, the sugar solubility in water and in ethanol could be predicted satisfactorily. Further, osmotic coefficients and solubility in aqueous solutions containing two solutes (sugar/sugar, sugar/salt) were predicted (no additional k(ij) parameters between the two solutes) reasonably. The model was also applied to predict the solubility of a sugar in a solvent mixture (e.g., water/ethanol) without additional fitting parameters. (c) 2013 American Institute of Chemical Engineers AIChE J, 59: 4794-4805, 2013

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12