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Title: Experimental determination of viscosities and densities of mixtures carbon dioxide+1-allyl-3-methylimidazolium chloride. Viscosity correlation
Authors: Lopes, Joana
Kareth, Sabine
Bermejo Roda, Mª Dolores
Martín Martínez, Ángel
Weidner, Eckhard
Cocero Alonso, María José
Issue Date: 2016
Publisher: Elservier B.V.
Description: Producción Científica
Citation: The Journal of Supercritical Fluids Volume 111, Mayo 2016, Pages 91-96
Abstract: The effect of viscosity reduction caused by the solubilization of CO2 is studied in order to improve the biomass processing in ionic liquids. To do so, densities and viscosities of the pure ionic liquid 1-allyl-3-methylimidazolium chloride and its mixtures with CO2 up molar fractions of 0.25 and temperatures between 333 and 372 K have been experimentally determined. Viscosities were correlated as a function of temperature and CO2 molar fractions with an average relative error of 2.5%. The viscosities of other mixtures CO2 + ionic liquids were also correlated for other ionic liquids with an average relative error between 4.4 and 13%. In general these ionic liquids present a linear decrease of viscosity with CO2 molar fractions up to around 0.5 that is more pronounced at lower temperatures and depends of each ionic liquid, and can reach between 60 and 100% viscosity reduction with respect the viscosity of the pure ionic liquid, making the CO2 a promising co-solvent for viscosity reduction in process with ionic liquids.
Keywords: densidades
Thermal properties
Classification: Ionic Liquid
Carbon Dioxide
Excess Molar Volume
1-Allyl-3-methylimidazolium chloride
ISSN: 0896-8446
Peer Review: SI
DOI: 10.1016/j.supflu.2015.12.013
Sponsor: Junta de Castilla y León VA295U14
Marie Curie Program. Project DoHip
Ministerio de Economía. Programa Ramon y Cajal, RyC RYC-2013-13976
Cluster of Excellence RESOLV (EXC 1069) funded by the Deutsche Forschungsgemeinschaft f
Publisher Version:
Rights Owner: Elsevier B.V.
Language: eng
Rights: info:eu-repo/semantics/embargoedAccess
Appears in Collections:IPP - Artículos de revista

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