On the application of the NRTL method to ternary (liquid+liquid) equilibria

Juliá, Jorge Álvarez; Barrero, Carmen Raquel; Corso, María E.; Grande, María del Carmen; Marschoff, C.M.

doi:10.1016/j.jct.2004.10.008

Cited by 22 publications

(8 citation statements)

References 10 publications

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“…While a slight deviation exists between the values of the parameters obtained for systems I and IX for the furfural and water binary mixture, most probably due to the different temperatures of the experimental data, the values of one of the parameters in both ternary systems even differ in sign for the systems involving formic acid and water (systems I and IV). These results strengthen the conclusion that the binary parameters of NRTL obtained from direct correlation of experimental equilibrium data cannot have any physical meaning in multicomponent mixtures, and should not be used to predict the behavior of the same pair of compounds in any other multicomponent mixture [13]. In this point, it is also important to remark that many objective functions are available [14] for fitting equilibrium data, which can provide different values of the binary parameters.…”

Section: Calculated Results and Discussionsupporting

confidence: 72%

Correlation of the liquid–liquid equilibrium data for specific ternary systems with one or two partially miscible binary subsystems

Reyes‐Labarta

Velasco

Serrano

2009

Fluid Phase Equilibria

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Section: Calculated Results and Discussionsupporting

confidence: 72%

Correlation of the liquid–liquid equilibrium data for specific ternary systems with one or two partially miscible binary subsystems

Reyes‐Labarta

Velasco

Serrano

2009

Fluid Phase Equilibria

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“…The most significant feature of the NRTL method [45] is its applicability to multicomponent systems, presuming that the local compositions can be depicted by a relationship similar to that acquired for binary systems [46]:…”

Section: Modelling Methodologymentioning

confidence: 99%

Experimental and Process Modelling Investigation of the Hydrogen Generation from Formic Acid Decomposition Using a Pd/Zn Catalyst

et al. 2021

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The use of hydrogen as a renewable fuel has attracted great attention in recent years. The decomposition of formic acid under mild conditions was investigated using a 2%Pd6Zn4 catalyst in a batch reactor. The results showed that the conversion of formic acid increases with reaction temperature and with the formic acid concentration. A process-simulation model was developed to predict the decomposition of formic acid using 2%Pd6Zn4 in a batch reactor. The model demonstrated very good validation with the experimental work. Further comparisons between the 2%Pd6Zn4 catalyst and a commercial Pd/C catalyst were carried out. It was found that the 2%Pd6Zn4 demonstrated significantly higher conversions when compared with the commercial catalyst.

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“…In general, LLE data are accompanied by correlations based on the excess Gibbs energy models, such as Wilson, Non-Random Two-Liquid (NRTL), UNIversal QUAsiChemical (UNIQUAC), electrolyte NRTL, modified NRTL, etc. [10,37,44,49,[54][55][56][57]. The concept of the local composition is based on the fact that the system composition in the neighbourhood of a given molecule is not the same as the "bulk" composition because of the intermolecular forces.…”

Section: Physico-chemical Properties Of Pilsmentioning

confidence: 99%

Polyimide/Ionic Liquid Composite Membranes for Middle and High Temperature Fuel Cell Application: Water Sorption Behavior and Proton Conductivity

Fatyeyeva

Rogalsky²,

Makhno

et al. 2020

Membranes

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Four water insoluble room-temperature protic ionic liquids (PILs) based on the N-alkylimidazolium cation with the alkyl chain length from 1 to 4 and bis(trifluoromethylsulfonyl)imide anion were synthesized and their chemical structure was confirmed by the 1H NMR and 19F NMR analysis. PILs were revealed to be thermally stable up to 360 and 400 °C. At the same time, the proton conductivity of PILs was found to be dependent mostly on the temperature and, to a less extent, on the type of the cation, i.e., the increase of the conductivity from ~3 × 10−4 S/cm at 25 °C to 2 × 10−2 S/cm at 150 °C was observed. The water vapour sorption capacity of PILs was evaluated as a function of relative humidity and the influence of the alkyl chain length on the phase behaviour in the PIL-water system was discussed. The composite polyimide/PILs membranes were prepared by the PIL immobilization in the porous polymer (Matrimid® 5218) film. The composite membranes showed a high level of proton conductivity (~10−3 S/cm) at elevated temperatures (up to 160 °C). The obtained results reveal that the elaborated composite polyimide/PIL membranes are promising candidates for the application as proton exchange membrane at middle and high temperatures.

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On the application of the NRTL method to ternary (liquid+liquid) equilibria

Cited by 22 publications

References 10 publications

Correlation of the liquid–liquid equilibrium data for specific ternary systems with one or two partially miscible binary subsystems

Correlation of the liquid–liquid equilibrium data for specific ternary systems with one or two partially miscible binary subsystems

Experimental and Process Modelling Investigation of the Hydrogen Generation from Formic Acid Decomposition Using a Pd/Zn Catalyst

Polyimide/Ionic Liquid Composite Membranes for Middle and High Temperature Fuel Cell Application: Water Sorption Behavior and Proton Conductivity

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