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

• Type: Article in International Scientific Journal
• Date: 2014

Authors

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

Journal

Title: Journal of Chemical & Engineering Data

Vol. 59 No. 10

Pages: 2942-2954

ISSN: 0021-9568

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 20 Citations

ISI Web of Science

Scopus - 29 Citations

Scientific classification

CORDIS: Technological sciences

FOS: Engineering and technology

Associated Projects

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

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

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13