Results 101 to 110 of about 183 (127)
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UREA-NH3-CO2-H2O: VLE Calculations using an extended uniquac equation
Fluid Phase Equilibria, 1989Abstract A modified UNIQUAC equation is applied to calculate Liquid phase non ideality of the quaternary system UREA-NH3-CO2-H2O. Some equilibrium equipments operating in different and strict conditions were successfully simulated using such an equation for VLE calculations.
M. Bernardis, G. Carvoli, M. Santini
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Energy Procedia, 2009 AbstractThe extended UNIQUAC model as proposed by Thomsen and Rasmussen [K. Thomsen, P. Rasmussen, Chem. Eng. Sci. 54 (1999) 1787-1802] was applied to the thermodynamic representation of carbon dioxide absorption in aqueous monoethanolamine (MEA) and methyldiethanolamine (MDEA) solutions.
Georgios M Kontogeorgis +2 more
exaly +2 more sources
Modeling the binary system Mn(NO3)2–H2O with the extended universal quasichemical (UNIQUAC) model
Fluid Phase Equilibria, 2015Abstract In this study, new experimental data for the binary system of Mn(NO3)2–H2O are presented in the temperature range from −29 °C to 35 °C at atmospheric pressure using the conductometric method, this synthetic method is an accurate experimental procedure in the determination of the solubility of salts in aqueous solutions.
Mouad Arrad +2 more
exaly +2 more sources
Main Group Chemistry, 2022
In this study, a thermodynamic model has been used to determine the solubility of carbon dioxide in an aqueous solution which is the combination of methyldiethanolamine (MDEA) and aminoethylethanolamine (AEEA). The physical equilibriums have been considered between the liquid and vapor phases and chemical equilibrium in the liquid phase.
Najafloo, Azam, Sakhaeinia, Hossein
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In this study, a thermodynamic model has been used to determine the solubility of carbon dioxide in an aqueous solution which is the combination of methyldiethanolamine (MDEA) and aminoethylethanolamine (AEEA). The physical equilibriums have been considered between the liquid and vapor phases and chemical equilibrium in the liquid phase.
Najafloo, Azam, Sakhaeinia, Hossein
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Modeling of Carbon Dioxide Absorption by Aqueous Ammonia Solutions Using the Extended UNIQUAC Model
Industrial & Engineering Chemistry Research, 2010An upgraded version of the extended UNIQUAC thermodynamic model for the carbon dioxide−ammonia−water system has been developed, on the basis of the original version proposed by Thomsen and Rasmussen (Chem. Eng. Sci. 1999, 54, 1787). The original model was valid in the temperature range 0−110 °C, the pressure range 0−10 MPa, and the concentration range ...
Victor Darde +3 more
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Journal of Chemical & Engineering Data, 2019
The inhibition of gas hydrate (clathrate hydrate) formation plays an important role in petroleum industries.
Fatemeh Sharifi +4 more
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The inhibition of gas hydrate (clathrate hydrate) formation plays an important role in petroleum industries.
Fatemeh Sharifi +4 more
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Chemical Engineering Science, 1986
Abstract A new method for the correlation and prediction of salt effects on VLE is proposed. The model combines a term of the Debye-Huckel type with a modified UNIQUAC equation with concentration-dependent parameters. The model parameters are ion-specific, and no ternary parameters are required.
Bo Sander +2 more
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Abstract A new method for the correlation and prediction of salt effects on VLE is proposed. The model combines a term of the Debye-Huckel type with a modified UNIQUAC equation with concentration-dependent parameters. The model parameters are ion-specific, and no ternary parameters are required.
Bo Sander +2 more
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Chemical Engineering Science, 2011
Abstract New experimental data for vapor–liquid equilibrium of CO 2 in aqueous monoethanolamine solutions are presented for 15, 30, 45 and 60 mass% MEA and from 40 to 120 °C. CO 2 partial pressures over loaded MEA solutions were measured using a low temperature equilibrium apparatus while total pressures were measured with a high temperature ...
Ugochukwu E Aronu +2 more
exaly +2 more sources
Abstract New experimental data for vapor–liquid equilibrium of CO 2 in aqueous monoethanolamine solutions are presented for 15, 30, 45 and 60 mass% MEA and from 40 to 120 °C. CO 2 partial pressures over loaded MEA solutions were measured using a low temperature equilibrium apparatus while total pressures were measured with a high temperature ...
Ugochukwu E Aronu +2 more
exaly +2 more sources
Chemical Engineering Science, 1986
Abstract An extended UNIQUAC-Debye-Huckel model is used to predict solid-liquid equilibria for aqueous solutions of nitrate salts with the cations K + , Mg 2+ and Ca 2+ . In addition to a model for activity coefficients in mixed electrolyte solutions, the method requires knowledge of the solubility products of all possible solid phases. Furthermore,
Bo Sander +2 more
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Abstract An extended UNIQUAC-Debye-Huckel model is used to predict solid-liquid equilibria for aqueous solutions of nitrate salts with the cations K + , Mg 2+ and Ca 2+ . In addition to a model for activity coefficients in mixed electrolyte solutions, the method requires knowledge of the solubility products of all possible solid phases. Furthermore,
Bo Sander +2 more
openaire +1 more source