Dispelling some myths about the CO2 solubility in ionic liquids

2016 ◽  
Vol 18 (22) ◽  
pp. 14757-14771 ◽  
Author(s):  
P. J. Carvalho ◽  
K. A. Kurnia ◽  
J. A. P. Coutinho
Keyword(s):  
Ionic Liquids ◽  
Co2 Solubility ◽  
High Solubility

ILs are not very good solvents for CO2. The apparent high solubility results from their high Mw and not from any special capability to dissolve CO2.

Long-Chain Carboxylate Ionic Liquids Combining High Solubility and Low Viscosity for Light Hydrocarbon Separations

2017 ◽  
Vol 56 (25) ◽  
pp. 7336-7344 ◽  
Author(s):  
Yi Zhang ◽  
Xu Zhao ◽  
Qiwei Yang ◽  
Zhiguo Zhang ◽  
Qilong Ren ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Light Hydrocarbon ◽  
High Solubility ◽  
Low Viscosity ◽  
Long Chain

Eutectic ionic liquid mixtures and their effect on CO2 solubility and conductivity

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 51407-51412 ◽  
Author(s):  
Anna S. Ivanova ◽  
Thomas Brinzer ◽  
Elliot A. Roth ◽  
Victor A. Kusuma ◽  
John D. Watkins ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Binary System ◽  
Liquid Mixtures ◽  
Short Chain ◽  
Co2 Solubility

A simple binary system of compounds resembling short-chain versions of popular ionic liquids has been shown to have alloying properties.

Synthesis of organophosphorus compounds using ionic liquids

2018 ◽  
Vol 34 (5) ◽  
pp. 727-740 ◽  
Author(s):  
Lavinia Macarie ◽  
Nicoleta Plesu ◽  
Smaranda Iliescu ◽  
Gheorghe Ilia
Keyword(s):  
Ionic Liquids ◽  
Organophosphorus Compounds ◽  
Inorganic Compounds ◽  
Green Solvents ◽  
High Solubility ◽  
Chemical Reagents ◽  
Reaction Media ◽  
Organophosphorus Chemistry ◽  
Synthesis Reactions ◽  
Toxic Organic Solvents

Abstract Organophosphorus chemistry was developed in the last decade by promoting the synthesis reactions using ionic liquids either as solvent or catalyst. Ionic liquids (ILs), the so-called “green solvents”, have gained interest in the synthesis of organophosphorus compounds as alternatives to flammable and toxic organic solvents and catalysts. ILs have beneficial properties because they provide high solubility for many organic and inorganic compounds or metal complexes, have no vapor pressure, and are reusable. Also, in some cases, they can enhance the reactivity of chemical reagents. In this review, we aimed at showing the synthesis of different organophosphorus compounds under green and mild conditions using ILs as reaction media or catalysts, according to a trend developed in the last years. A novel trend is to perform these syntheses under microwave irradiation conditions together with ILs as solvents and catalysts.

scholarly journals Prediction of CO2 Solubility in Ionic Liquids Based on Multi-Model Fusion Method

Processes ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 258 ◽  
Author(s):  
Luyue Xia ◽  
Jiachen Wang ◽  
Shanshan Liu ◽  
Zhuo Li ◽  
Haitian Pan
Keyword(s):  
Ionic Liquids ◽  
Information Entropy ◽  
Research Work ◽  
Entropy Method ◽  
Modeling Method ◽  
Least Square ◽  
Fusion Model ◽  
Co2 Solubility ◽  
Model Fusion ◽  
Better Than

Reducing the emissions of greenhouse gas is a worldwide problem that needs to be solved urgently for sustainable development in the future. The solubility of CO2 in ionic liquids is one of the important basic data for capturing CO2. Considering the disadvantages of experimental measurements, e.g., time-consuming and expensive, the complex parameters of mechanism modeling and the poor stability of single data-driven modeling, a multi-model fusion modeling method is proposed in order to predict the solubility of CO2 in ionic liquids. The multiple sub-models are built by the training set. The sub-models with better performance are selected through the validation set. Then, linear fusion models are established by minimizing the sum of squares of the error and information entropy method respectively. Finally, the performance of the fusion model is verified by the test set. The results showed that the prediction effect of the linear fusion models is better than that of the other three optimal sub-models. The prediction effect of the linear fusion model based on information entropy method is better than that of the least square error method. Through the research work, an effective and feasible modeling method is provided for accurately predicting the solubility of CO2 in ionic liquids. It can provide important basic conditions for evaluating and screening higher selective ionic liquids.

The Use of Ionic Liquids in Refrigeration

2006 ◽  
Author(s):  
Mihir Sen ◽  
Samuel Paolucci
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
High Heat ◽  
The Other ◽  
Refrigeration Cycle ◽  
Absorption Refrigeration ◽  
Transfer Coefficients ◽  
High Solubility ◽  
High Heat Capacity ◽  
Thermal And Chemical Stability

Ionic liquids are salts, usually with organic cations and inorganic anions, that are liquid at room temperature. There are a wide variety of ionic liquids that can be synthesized with different properties for different applications. They are generally non-volatile, non-toxic, and non-flammable with high heat capacity, high density, high thermal and chemical stability. We propose its use as an absorbent in an absorption refrigeration cycle. The refrigerant in this case would be a gas such as carbon dioxide. The present work deals with the desirable properties of ionic liquids for this application. For example, the absorbent must have a high solubility, and the heat and mass transfer coefficients of the absorbent-refrigerant solution must be large. The viscosity of the mixture, on the other hand, should not be so large as to make its pumping difficult.

Prediction of CO2 solubility in ionic liquids with QM and UNIQUAC models

2016 ◽  
Vol 222 ◽  
pp. 195-200 ◽  
Author(s):  
Amin Kamgar ◽  
Mohammad Reza Rahimpour
Keyword(s):  
Ionic Liquids ◽  
Co2 Solubility
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