|
authors |
Carvalho, PJ; Alvarez, VH; Machado, JJB; Pauly, J; Daridon, JL; Marrucho, IM; Aznar, M; Coutinho, JAP |
|
nationality |
International |
|
journal |
JOURNAL OF SUPERCRITICAL FLUIDS |
|
author keywords |
1-Ethyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide 1-Methyl-3-pentyl-imidazolium bis(trifluoromethylsulfonyl)imide; Carbon dioxide; Phase behavior; Supercritical; Experimental; High pressure |
|
keywords |
GAS SOLUBILITY; THERMODYNAMIC PROPERTIES; MUTUAL SOLUBILITIES; ELEVATED PRESSURES; SURFACE TENSIONS; MOLTEN-SALTS; CO2; SYSTEMS; TEMPERATURE; WATER |
|
abstract |
New standards concerning environmental and safety issues are creating an increasing interest on ionic liquids as alternative solvents for a wide range of industrial applications. In this work, a new apparatus developed to measure vapor-liquid phase equilibrium in a wide range of pressures and temperatures was used to measure the phase behavior of the binary systems of carbon dioxide (CO(2))+1-ethyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide ([C(2) mim][Tf(2)N]) and CO(2)+1-methyl-3-pentyl-imidazolium bis(trifluoromethylsulfonyl)imide ([C(5) mim][Tf(2)N]) at temperatures up to 363 K and pressures up to 50 MPa. A thermodynamic consistency test, developed for systems with incomplete PTxy data and based on the Gibbs-Duhem equation, was applied to the experimental data measured in this work and the Peng-Robinson EoS using the Wong-Sandler mixing rule was used to describe the experimental data with excellent results. (C) 2008 Elsevier B.V. All rights reserved. |
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publisher |
ELSEVIER SCIENCE BV |
|
issn |
0896-8446 |
|
year published |
2009 |
|
volume |
48 |
|
issue |
2 |
|
beginning page |
99 |
|
ending page |
107 |
|
digital object identifier (doi) |
10.1016/j.supflu.2008.10.012 |
|
web of science category |
Chemistry, Physical; Engineering, Chemical |
|
subject category |
Chemistry; Engineering |
|
unique article identifier |
WOS:000264250800001
|
