High pressure solubility of methane in the ionic liquid 1-hexyl-3-methylimidazolium tricyanomethanide

2017 ◽  
Vol 128 ◽  
pp. 145-148 ◽  
Author(s):  
Mamoun Althuluth ◽  
Maaike C. Kroon ◽  
Cor J. Peters
Keyword(s):  
High Pressure ◽  
Ionic Liquid

Pretreatment of Fir Powder and Its Dissolution in Ionic Liquid of 1-(2-Hydroxylethyl)-3-Ethylene Imidazolium Chloride

2011 ◽  
Vol 236-238 ◽  
pp. 87-90
Author(s):  
Li Ying Guo
Keyword(s):  
High Pressure ◽  
Ionic Liquid ◽  
Dissolution Rate ◽  
Mass Fraction ◽  
Wood Powder ◽  
Imidazolium Chloride ◽  
Chemical Structures ◽  
Good Solubility ◽  
Temperature And Pressure ◽  
Pressure Dissolution

Ionic liquid, 1-(2-hydroxylethyl)-3-ethylene imidazolium chloride ([HeVIM]Cl) was synthesized and its chemical structures was examined by FTIR and 1HNMR. Fir powder was extracted with a mixture of benzene/ethanol or activated with 25% (mass fraction) NaOH under normal temperature and pressure, microwave and high pressure. Dissolution of the pretreated wood powder in [HeVIM]Cl by microwave (90°C, 400w) was studied. The results showed that the ionic liquid [HeVIM]Cl exhibited a good solubility. Wood powder pretreated with 25% NaOH under high pressure had the lowest crystallinity (2.4%) and the highest dissolution rate (21.6%).

High-Pressure Phase Equilibrium Studies of Multicomponent (Alcohol-Water-Ionic Liquid-CO2) Systems

2020 ◽  
Vol 6 (1) ◽  
pp. 9
Author(s):  
Małgorzata E. Zakrzewska ◽  
Ana B. Paninho ◽  
M. Fátima C. Guedes da Silva ◽  
Ana V. M. Nunes
Keyword(s):  
High Pressure ◽  
Ionic Liquid ◽  
Phase Equilibrium ◽  
Process Intensification ◽  
High Pressure Phase ◽  
Equilibrium Studies ◽  
Water Separation ◽  
Alcohol Water ◽  
Product Separation ◽  
Pressure Phase

Selective water (by-product) separation from reaction mixtures stands as an important process intensification strategy for equilibrium-limited reactions. In this work, the possibility of using a high-pressure biphasic reaction media composed of a hydrophobic ionic liquid, 1-hexy-3-methylimidazolium tetracyanoborate, and carbon dioxide was explored for levulinic acid production from 1,4-butanediol. Vapour-liquid equilibrium measurements were performed for the binary (diol+CO2), ternary (diol+CO2+IL), and quaternary systems (diol+CO2+IL+water), at 313.2 K and pressures up to 18 MPa. The static analytical method was used in a high-pressure phase equilibrium apparatus equipped with a visual sapphire cell. The capability of the quaternary system to perform physical water separation is discussed in this paper.

High pressure vapor-liquid equilibria for binary carbon dioxide and protic ionic liquid based on ethanolamines + butanoic acid

2018 ◽  
Vol 460 ◽  
pp. 162-174 ◽  
Author(s):  
Murilo L. Alcantara ◽  
Marlon L. de Carvalho ◽  
Victor H. Álvarez ◽  
Pedro I.S. Ferreira ◽  
Márcio L.L. Paredes ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Ionic Liquid ◽  
Butanoic Acid ◽  
Protic Ionic Liquid ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

Self-diffusion, velocity cross-correlation, distinct diffusion and resistance coefficients of the ionic liquid [BMIM][Tf2N] at high pressure

2015 ◽  
Vol 17 (37) ◽  
pp. 23977-23993 ◽  
Author(s):  
Kenneth R. Harris ◽  
Mitsuhiro Kanakubo
Keyword(s):  
High Pressure ◽  
Ionic Liquid ◽  
Transport Properties ◽  
Diffusion Coefficients ◽  
Cross Correlation ◽  
Diffusion Velocity ◽  
Self Diffusion ◽  
Scaling Parameters ◽  
Resistance Coefficients ◽  
Viscosity Dependence

Distinct diffusion coefficients for 1-alkyl-3-imidazolium [Tf2N] salts show very similar viscosity dependence; thermodynamic scaling parameters for the reduced transport properties are equal.

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