Results 11 to 20 of about 183 (127)
Extended UNIQUAC Thermodynamic Modeling of Aqueous Two-Phase Systems, Water + Salt + Short-Chain Alcohol [PDF]
Industrial & Engineering Chemistry Research, 2022 The extended UNIQUAC activity coefficient model for electrolyte solutions was used for simulating the water + short-chain alcohol (1-propanol, 2-propanol, and tert-butanol) + salt (NaCl, KCl, NH4Cl, Na2SO4, and K2SO4) systems in a wide temperature range (0–100 °C).
Alejandro Gomis +2 more
openaire +2 more sources
Correlation and Prediction of Thermodynamic Properties for Quaternary Ammonium Salt Types by Applying the Modified Nonelectrolyte UNIQUAC-NRF Model [PDF]
Iranian Journal of Chemistry & Chemical EngineeringThe osmotic and activity coefficients of quaternary ammonium salt types are correlated and predicted by applying a modified nonelectrolyte UNIQUAC-NRF equation.
Ali Hosseini Eghbal +1 more
doaj +1 more source
Biofuels, Bioproducts and Biorefining, Volume 17, Issue 6, Page 1515-1527, November/December 2023., 2023 Abstract We present a multi‐objective optimization framework for the design of an algal biorefinery with multiple target products. Four environmental endpoint indicators and the economic performance are used as objective functions following the life cycle assessment (LCA) methodology.
Johannes Kopton +3 more
wiley +1 more source
Journal of Chemical Technology &Biotechnology, Volume 98, Issue 9, Page 2295-2304, September 2023., 2023 Abstract BACKGROUND As a result of the ban on whaling, there has been a shortage of spermaceti, a natural product with applications in cosmetics and pharmaceuticals. A green and sustainable process for the biocatalytic synthesis of a wax ester mixture analogue to natural spermaceti is presented in this paper.
M. Claudia Montiel +5 more
wiley +1 more source
The Use of the Multiobjective Function-De Algorithm in the Application of Extended UNIQUAC for CO2-MEA-H2O System [PDF]
Journal of Thermodynamics & Catalysis, 2012 The extended UNIQUAC model has been used to simulate the absorption of carbon dioxide (CO 2 ) absorption by methylethylamine (MEA), using differential evolution algorithm method to regress UNIQUAC parameters. The model was successfully applied to correlate simultaneously total pressure versus CO 2 concentration and MEA more fraction, water activity ...
Saeid Kamalpour, Amine Mehablia
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Estimation of UNIQUAC-NRF Model Parameters for NH3-CO2-H2O System [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2005 Vapor-liquid equilibrium in NH3-CO2-H2O system at high pressures has been studied. The UNIQUAC-NRF model for this system was extended by using the Goppert 4 maurer reported datas.
Hassan Pahlevanzadeh +1 more
doaj
Design and test of urea hydrolysis reactor for vehicle
MATEC Web of Conferences, 2017 Ammonia production technology of urea-SCR system for vehicle is mainly used in pyrolysis. The reaction is complex, and there are some side effects. So a kind of urea hydrolysis device for vehicle is designed.
Qi Zhanfeng, Li Shusen, Guo Xiuli
doaj +1 more source
Thermodynamic Modelling of Mdea(Aq)-Nh3(Aq)-K2co3(Aq)-Co2(Aq) Using the Extended Uniquac Model
SSRN Electronic Journal, 2022 The development of advanced processes for carbon dioxide capture requires reliable thermodynamic models to ensure accurate process design. This work presents an optimized parameter set of the Extended UNIQUAC model for advanced mixed solvent solutions containing CO2-MDEA-NH3-K2CO3 in water.
Lucas Farias Falcchi Corrêa +2 more
openaire +2 more sources
Fluid Phase Equilibria, 2023 A comparison of two thermodynamic models is presented using the water-cesium nitrate system as case study. Both models were able to model the thermodynamic properties such as the osmotic coefficient, vapor pressure, mean activity coefficient and solubility with good accuracy.
Mouad Arrad +3 more
openaire +2 more sources
Techno‐Economic Analysis of Low‐Grade Barite Beneficiation Using Aspen Simulation
Engineering Reports, Volume 8, Issue 7, July 2026.The beneficiation of barite is essential, being one of the commercially available minerals available in Nigeria. The techno‐economic analysis of its beneficiation is imperative to assist in reforming the economic policy that helps in socio‐economic advancement.
Oluwafemi Fadayini +5 more
wiley +1 more source