Journal
JOURNAL OF CHEMICAL THERMODYNAMICS
Volume 120, Issue -, Pages 72-78Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jct.2018.01.003
Keywords
Activity coefficient at infinite dilution Ionic liquid; Trihexyl-tetradecyl-phosphonium tricyanomethanide; Selectivity; Biobutanol extraction; LFER
Categories
Ask authors/readers for more resources
The activity coefficients at infinite dilution, gamma(infinity)(13) and gas-liquid partition coefficients, KL for 62 solutes: alkanes, alkenes, alkynes, cycloalkanes, aromatic hydrocarbons, alcohols, thiophene, ethers, ketones, esters, butanal, nitrogen compounds and water in the ionic liquid trihexyl-tetradecyl-phosphonium tricyanamide were determined by gas-liquid chromatography at the temperatures from 328.15 K to 368.15 K. The partial molar excess Gibbs energies Delta G(1)(E,infinity), enthalpies Delta H-1(E,infinity) and entropies Delta S-1(E,infinity) at infinite dilution were calculated from the experimental gamma(infinity)(13) values obtained over the temperature range. The selectivities and capacities at infinite dilution for water/ butan-1-ol separation problem were calculated from the gamma(infinity)(13) and compared to the literature values for other ionic liquids. High selectivity was obtained in comparison to other ionic liquids. Butanol is considered as possible biofuel. This alcohol is produced by fermentation and it must be separated from the aqueous fermentation broth. The values of K-L were used to determine the linear free energy relationship ( LFER) system constants as a function of temperature. The density of the investigated ionic liquid was also measured at temperatures from 298.15 K to 368.15 K(C) 2018 Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available