Thermophysical Characterization of Ionic Liquids Able To Dissolve Biomass

被引：304

作者：

Freire, Mara G. ^{[1
]}

Teles, Ana Rita R. ^{[1
]}

Rocha, Marisa A. A. ^{[2
]}

Schroeder, Bernd ^{[1
]}

Neves, Catarina M. S. S. ^{[1
]}

Carvalho, Pedro J. ^{[1
]}

Evtuguin, Dmitry V. ^{[1
]}

Santos, Luis M. N. B. F. ^{[2
]}

Coutinho, Joao A. P. ^{[1
]}

机构：

[1] Univ Aveiro, CICECO, Dept Quim, P-3810193 Aveiro, Portugal

[2] Univ Porto, Fac Ciencias, Dept Quim & Bioquim, CIQ, P-4169007 Oporto, Portugal

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2011年 / 56卷 / 12期

关键词：

HEAT-CAPACITIES; COMPOSITION DEPENDENCE; BINARY-MIXTURES; TEMPERATURE; WATER; DISSOLUTION; CELLULOSE; DENSITY; PLUS; VISCOSITY;

D O I：

10.1021/je200790q

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Among new potential solvents for lignocellulosic materials, ionic liquids (ILs) are attracting considerable attention. Hence, the knowledge of the thermophysical properties of such fluids is essential for the design of related industrial processes. Therefore, in this work, a set of thermophysical properties, namely, density, viscosity, and refractive index, as a function of temperature, and isobaric thermal expansivity and heat capacities at a constant temperature, were determined for eight ionic liquids with the 1-ethyl-3-methylimidazolium cation combined with the following anions: acetate, methylphosphonate, methanesulfonate, trifluoromethanesulfonate, dicyanamide, thiocyanate, tosylate, and dimethylphosphate. Imidazolium-based HA were chosen since these are the most studied ionic fluids in biomass dissolution approaches, while a large array of anions was investigated because it was already demonstrated that it is the IL anion that mainly governs the dissolution.

引用

页码：4813 / 4822

页数：10

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