Hygrometric determination of water activities, osmotic and activity coefficients of (NaCl+ KCl)(aq) at T= 298.15 K

Dinane, Abderrahim; Guendouzi, Mohamed El; Mounir, Abdelfetah

doi:10.1006/jcht.2001.0845

Cited by 51 publications

(32 citation statements)

References 29 publications

(20 reference statements)

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“…is fundamentally a virial expansion of the Debye-Hückel theory, aiming to capture the solution's excess Gibbs free energy with higher order terms. The Pitzer-Kim interaction parameters are obtained from Kim et al [26,27] and validated against osmotic coefficient measurements of ternary multi-electrolyte mixtures from [28,29].…”

Section: Solution Properties 221 Activity and Osmotic Pressurementioning

confidence: 99%

“…Figure D.15: Prediction of the osmotic coefficients of multi-electrolyte solutions at 298.15 K as a function of the root of the total ionic molality. In this figure, the predicted osmotic coefficients from the Pitzer-Kim model for (A) NaCl-KCl, and (B)NaCl-Na 2 SO 4 solutions are juxtaposed against experimental measurements from[28,29]. The ionic molalities range from 0.6 to 5.0 mol kg −1 .…”

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confidence: 99%

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Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Foo

Rehman

Coombs

et al. 2021

Journal of Membrane Science

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Section: Solution Properties 221 Activity and Osmotic Pressurementioning

confidence: 99%

mentioning

confidence: 99%

Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Foo

Rehman

Coombs

et al. 2021

Journal of Membrane Science

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“…The osmotic and activity coefficients of NaCl(aq) and KCl(aq) in ternary system {NaCl + KCl}(aq) are calculated using our ionic mixing parameters of Pitzer's equations [12,13] and listed in Table 1. These coefficients were presented as a function of salinity and shown in Figures 1, and 2.…”

Section: Osmotic and Activity Coefficientsmentioning

confidence: 99%

“…Table 1. Ionic interaction parameters for NaCl, KCl, and their mixtures at 298.15 K System β (0) β (1) C  Ref NaCl(aq) 0.0738 0.2712 0.00167 [12] KCl(aq) 0.04631 0.2157 0.00003 [12] {NaCl + KCl}(aq) NaK NaKCl −0.015 0.0035 [13] Table 2 According to the figures 1 and 2, the activity coefficients decrease when the salinity of the solution rises. This behaviour is mainly due to the interactions involved between the molecules (water) and ions in aqueous solutions.…”

Section: Osmotic and Activity Coefficientsmentioning

confidence: 99%

Evaluation of energy consumption during the seawater desalination process simulated to the aqueous ternary system {NaCl + KCl}(_aq)

Errougui¹,

Benbiyi

Guendouzi

2021

E3S Web Conf.

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Energy consumption is a purely thermodynamic concept very useful in several scientific fields such as desalination, oceanography, biology, geochemistry and environmental processes, as well as in industrial applications. In this investigation, based on a thermodynamic approach, the calculation of energy consumption was evaluated during the desalination of seawater simulated to the aqueous ternary system {NaCl + KCl}(aq). The mixing ionic parameters, obtained in our previous work, are used to predict the osmotic and activity coefficients in the aqueous solutions at different salinities ranging from 3.6 up to 72 g.L-1 at T = 298.15 K using the ion interaction model. The theoretical energy consumption of desalination was calculated at various salinities and recovery ratios.

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“…Since both sodium and potassium chloride are being treated as completely dissociated in our our parameterization of the Pitzer model, the temperature-dependent correlation for the mixing parameters were taken from Greenberg & Moller (1989), applicable to 0-250û C and I ≤ 18 m. The osmotic coefficient data of Dinane et al (2002) @25û C and the multi-temperature solubility data of Linke & Seidell (1965, pp. 146-148), Conceicao et al(1983), and Sterner et al (1988), covering the ionic strength range 0.2-9.4 m, were used to assess the reliability of these Pitzer mixing parameters for KCl-NaCl, and the predictions compare favorably with the data.…”

Section: Chloride Mixtures (Hmentioning

confidence: 99%

Thermodynamic Phase And Chemical Equilibrium At 0-110 C For The H+-K+-Na+-Cl--H2O System Up To 16 Molal And The HNO3-H2O System Up To 20 Molal Using An Association-Based Pitzer Model Compatible With ASPEN Plus

Nichols¹,

Taylor²

2003

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A status is presented of the parameterization during FY2003 of an association-based Pitzer model to simulate chemical and phase equilibria of acid-chloride-nitrate-mercury aqueous electrolyte systems at 0-100û C within the industry-standard process simulator, ASPEN Plus. Compatibility with ASPEN Plus requires that the Pitzer model used be limited to the third virial coefficient and have the values of b and α 1 as originally proposed by Pitzer. Two aqueous models for 0-110û C at atmospheric pressure were parameterized in FY03. The model for the aqueous H + -K + -Na + -Cl -system is applicable for 0-16 molal, and the HNO 3 -H2O for 0-20 molal. An association-based Pitzer activity coefficient model is combined with Henry's law to predict activity/osmotic coefficient and VLE. The chloride model also predicts KCl and NaCl solubility, while the nitric acid model has the unique capability of predicting extent of dissociation with an average absolute deviation of 1.43%. The association-based approach presented here extends the utility of the molality-based Pitzer model past 6 molal to predict activity/osmotic coefficients up to 16-20 molal. The association-based approach offers the additional benefits of predicting extent of dissociation and of allowing the Pitzer model to be fully utilized in commercial simulators, such as ASPEN Plus, that require accounting for association to implement Henry's law. The Pitzer models presented here provide the chemical process simulation engineer with a superior alternative to the Electrolyte NRTL model that can easily be used in ASPEN Plus. iv EXECUTIVE SUMMARYA status is presented of the parameterization during FY2003 of an association-based Pitzer model to simulate chemical and phase equilibria of acid-chloride-nitrate-mercury aqueous electrolyte systems. This work was funded by the Laboratory Directed Research and Development (LDRD) program at the Idaho National Engineering and Environmental Laboratory (INEEL). The Pitzer model was originally developed for the 0-6 molal range, so many of the Pitzer parameter values in the literature are not applicable to high ionic-strength, complex mixtures, such as 10 molal SBW. The objective of this project is to obtain association-based parameters for the Pitzer model that will allow practitioners to perform process design involving liquid speciation, vapor-liquid, and solid-liquid equilibria of high ionic-strength, complex, electrolyte mixtures at 0-100û C within any process simulator where Pitzer's model has been implemented (in particular, ASPEN Plus, which has been selected for process modeling at INEEL).The parameterization of two aqueous models for 0-110û C at atmospheric pressure were performed in FY03. An association-based Pitzer activity coefficient model is combined with Henry's law to predict activity/osmotic coefficient and vapor-liquid equilibrium. The bulk of the work of parameterization involved the qualification of different data types from different researchers, at similar and different temperatures. The model for the a...

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Hygrometric determination of water activities, osmotic and activity coefficients of (NaCl+ KCl)(aq) at T= 298.15 K

Cited by 51 publications

References 29 publications

Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Evaluation of energy consumption during the seawater desalination process simulated to the aqueous ternary system {NaCl + KCl}(_aq)

Thermodynamic Phase And Chemical Equilibrium At 0-110 C For The H+-K+-Na+-Cl--H2O System Up To 16 Molal And The HNO3-H2O System Up To 20 Molal Using An Association-Based Pitzer Model Compatible With ASPEN Plus

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Hygrometric determination of water activities, osmotic and activity coefficients of (NaCl+ KCl)(aq) at T= 298.15 K

Cited by 51 publications

References 29 publications

Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Multicomponent Fickian solution-diffusion model for osmotic transport through membranes

Evaluation of energy consumption during the seawater desalination process simulated to the aqueous ternary system {NaCl + KCl}(aq)

Thermodynamic Phase And Chemical Equilibrium At 0-110 C For The H+-K+-Na+-Cl--H2O System Up To 16 Molal And The HNO3-H2O System Up To 20 Molal Using An Association-Based Pitzer Model Compatible With ASPEN Plus

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Evaluation of energy consumption during the seawater desalination process simulated to the aqueous ternary system {NaCl + KCl}(_aq)