Density of Mixtures Containing Sugars and Ionic Liquids: Experimental Data and PC-SAFT Modeling

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

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

Revista

Título: Journal of Chemical & Engineering Data

Vol. 59 Nº 10

Páginas: 2942-2954

ISSN: 0021-9568

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 20 Citações

ISI Web of Science

Scopus - 29 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas

FOS: Ciências da engenharia e tecnologias

Projetos Associados

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

LA 20 - Projeto Estratégico-LA 20 - 2011-2012

Outras Informações

ID Authenticus: P-009-VN0

DOI: 10.1021/je500079y

Abstract (EN): The potential use of ionic liquids (ILs) for biomass and carbohydrate processing has been discovered in the past decade. Many advantages have been pointed out in their application for biorefining purposes. The phase equilibria and volumetric properties of mixtures containing ILs and biomass-derived compounds such as sugars or sugar alcohols are relevant for process design. In this work, the density, at atmospheric pressure, of binary mixtures containing sugars (glucose and fructose) or sugar alcohols (xylitol and sorbitol) and ionic liquids (1-ethyl-3-methylimidazolium ethylsulfate and Aliquat336) is presented within large temperature (278 K to 343 K) and composition ranges (up to sugar or sugar alcohol mass fraction of 0.30). The density data followed a bilinear trend with respect to temperature and composition. The data were therefore represented using planar regression with a very good accuracy, average relative deviation (ARD) <0.1 % in most of the cases. The perturbed-chain statistical association fluid theory (PC-SAFT) equation of state was applied to model solutions containing ILs. The pure component parameters for Aliquat336 were fitted to pure-IL density data. Appluing temperature-dependent K-ij parameters, PC SAFT allowed satisfactory modeling of the measured density data and literature solubility data of sugars and sugar alcohols in Aliquat336.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13