The Experts below are selected from a list of 186 Experts worldwide ranked by ideXlab platform
Huiling Que - One of the best experts on this subject based on the ideXlab platform.
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Thermodynamic Modeling of the Sulfuric Acid−Water−Sulfur Trioxide System with the Symmetric Electrolyte NRTL Model
Journal of Chemical & Engineering Data, 2011Co-Authors: Huiling Que, Yuhua Song, Chau-chyun ChenAbstract:Thermodynamic modeling of the Sulfuric acid−water−Sulfur Trioxide system is of great interest to the industry. The recently developed symmetric electrolyte NRTL activity coefficient model is applied to develop a comprehensive thermodynamic model for the Sulfuric acid system over the whole concentration range from pure water to pure Sulfuric acid to pure Sulfur Trioxide with temperature up to 773 K. The model takes into account partial dissociations of Sulfuric acid and bisulfate ion, hydration of hydronium ion, decomposition of Sulfuric acid to water and Sulfur Trioxide, and formation of diSulfuric acid from Sulfuric acid and Sulfur Trioxide in the concentrated Sulfur Trioxide region. Excellent matches between model correlations and available literature data are achieved for vapor−liquid equilibrium, osmotic coefficient, liquid phase speciation, heat of dilution, heat of mixing, heat of solution, and liquid heat capacity of the Sulfuric acid−water−Sulfur Trioxide system.
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thermodynamic modeling of the Sulfuric acid water Sulfur Trioxide system with the symmetric electrolyte nrtl model
Journal of Chemical & Engineering Data, 2011Co-Authors: Huiling Que, Yuhua Song, Chauchyu CheAbstract:Thermodynamic modeling of the Sulfuric acid−water−Sulfur Trioxide system is of great interest to the industry. The recently developed symmetric electrolyte NRTL activity coefficient model is applied to develop a comprehensive thermodynamic model for the Sulfuric acid system over the whole concentration range from pure water to pure Sulfuric acid to pure Sulfur Trioxide with temperature up to 773 K. The model takes into account partial dissociations of Sulfuric acid and bisulfate ion, hydration of hydronium ion, decomposition of Sulfuric acid to water and Sulfur Trioxide, and formation of diSulfuric acid from Sulfuric acid and Sulfur Trioxide in the concentrated Sulfur Trioxide region. Excellent matches between model correlations and available literature data are achieved for vapor−liquid equilibrium, osmotic coefficient, liquid phase speciation, heat of dilution, heat of mixing, heat of solution, and liquid heat capacity of the Sulfuric acid−water−Sulfur Trioxide system.
Chauchyu Che - One of the best experts on this subject based on the ideXlab platform.
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thermodynamic modeling of the Sulfuric acid water Sulfur Trioxide system with the symmetric electrolyte nrtl model
Journal of Chemical & Engineering Data, 2011Co-Authors: Huiling Que, Yuhua Song, Chauchyu CheAbstract:Thermodynamic modeling of the Sulfuric acid−water−Sulfur Trioxide system is of great interest to the industry. The recently developed symmetric electrolyte NRTL activity coefficient model is applied to develop a comprehensive thermodynamic model for the Sulfuric acid system over the whole concentration range from pure water to pure Sulfuric acid to pure Sulfur Trioxide with temperature up to 773 K. The model takes into account partial dissociations of Sulfuric acid and bisulfate ion, hydration of hydronium ion, decomposition of Sulfuric acid to water and Sulfur Trioxide, and formation of diSulfuric acid from Sulfuric acid and Sulfur Trioxide in the concentrated Sulfur Trioxide region. Excellent matches between model correlations and available literature data are achieved for vapor−liquid equilibrium, osmotic coefficient, liquid phase speciation, heat of dilution, heat of mixing, heat of solution, and liquid heat capacity of the Sulfuric acid−water−Sulfur Trioxide system.
Chau-chyun Chen - One of the best experts on this subject based on the ideXlab platform.
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Thermodynamic Modeling of the Sulfuric Acid−Water−Sulfur Trioxide System with the Symmetric Electrolyte NRTL Model
Journal of Chemical & Engineering Data, 2011Co-Authors: Huiling Que, Yuhua Song, Chau-chyun ChenAbstract:Thermodynamic modeling of the Sulfuric acid−water−Sulfur Trioxide system is of great interest to the industry. The recently developed symmetric electrolyte NRTL activity coefficient model is applied to develop a comprehensive thermodynamic model for the Sulfuric acid system over the whole concentration range from pure water to pure Sulfuric acid to pure Sulfur Trioxide with temperature up to 773 K. The model takes into account partial dissociations of Sulfuric acid and bisulfate ion, hydration of hydronium ion, decomposition of Sulfuric acid to water and Sulfur Trioxide, and formation of diSulfuric acid from Sulfuric acid and Sulfur Trioxide in the concentrated Sulfur Trioxide region. Excellent matches between model correlations and available literature data are achieved for vapor−liquid equilibrium, osmotic coefficient, liquid phase speciation, heat of dilution, heat of mixing, heat of solution, and liquid heat capacity of the Sulfuric acid−water−Sulfur Trioxide system.
Yuhua Song - One of the best experts on this subject based on the ideXlab platform.
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Thermodynamic Modeling of the Sulfuric Acid−Water−Sulfur Trioxide System with the Symmetric Electrolyte NRTL Model
Journal of Chemical & Engineering Data, 2011Co-Authors: Huiling Que, Yuhua Song, Chau-chyun ChenAbstract:Thermodynamic modeling of the Sulfuric acid−water−Sulfur Trioxide system is of great interest to the industry. The recently developed symmetric electrolyte NRTL activity coefficient model is applied to develop a comprehensive thermodynamic model for the Sulfuric acid system over the whole concentration range from pure water to pure Sulfuric acid to pure Sulfur Trioxide with temperature up to 773 K. The model takes into account partial dissociations of Sulfuric acid and bisulfate ion, hydration of hydronium ion, decomposition of Sulfuric acid to water and Sulfur Trioxide, and formation of diSulfuric acid from Sulfuric acid and Sulfur Trioxide in the concentrated Sulfur Trioxide region. Excellent matches between model correlations and available literature data are achieved for vapor−liquid equilibrium, osmotic coefficient, liquid phase speciation, heat of dilution, heat of mixing, heat of solution, and liquid heat capacity of the Sulfuric acid−water−Sulfur Trioxide system.
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thermodynamic modeling of the Sulfuric acid water Sulfur Trioxide system with the symmetric electrolyte nrtl model
Journal of Chemical & Engineering Data, 2011Co-Authors: Huiling Que, Yuhua Song, Chauchyu CheAbstract:Thermodynamic modeling of the Sulfuric acid−water−Sulfur Trioxide system is of great interest to the industry. The recently developed symmetric electrolyte NRTL activity coefficient model is applied to develop a comprehensive thermodynamic model for the Sulfuric acid system over the whole concentration range from pure water to pure Sulfuric acid to pure Sulfur Trioxide with temperature up to 773 K. The model takes into account partial dissociations of Sulfuric acid and bisulfate ion, hydration of hydronium ion, decomposition of Sulfuric acid to water and Sulfur Trioxide, and formation of diSulfuric acid from Sulfuric acid and Sulfur Trioxide in the concentrated Sulfur Trioxide region. Excellent matches between model correlations and available literature data are achieved for vapor−liquid equilibrium, osmotic coefficient, liquid phase speciation, heat of dilution, heat of mixing, heat of solution, and liquid heat capacity of the Sulfuric acid−water−Sulfur Trioxide system.
Robert Pitz-paal - One of the best experts on this subject based on the ideXlab platform.
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Experimental Study on Sulfur Trioxide Decomposition in a Volumetric Solar Receiver-Reactor
International Journal of Energy Research, 2009Co-Authors: Adam Noglik, Martin Roeb, Christian Sattler, Robert Pitz-paalAbstract:Process conditions for the direct solar decomposition of Sulfur Trioxide have been investigated and optimized by using a receiver–reactor in a solar furnace. This decomposition reaction is a key step to couple concentrated solar radiation or solar high-temperature heat into promising Sulfur-based thermochemical cycles for solar production of hydrogen from water. After proof-of-principle a modified design of the reactor was applied. A separated chamber for the evaporation of the Sulfuric acid, which is the precursor of Sulfur Trioxide in the mentioned thermochemical cycles, a higher mass flow of reactants, an independent control and optimization of the decomposition reactor were possible. Higher mass flows of the reactants improve the reactor efficiency because energy losses are almost independent of the mass flow due to the predominant contribution of re-radiation losses. The influence of absorber temperature, mass flow, reactant initial concentration, acid concentration, and residence time on Sulfur Trioxide conversion and reactor efficiency has been investigated systematically. The experimental investigation was accompanied by energy balancing of the reactor for typical operational points. The absorber temperature turned out to be the most important parameter with respect to both conversion and efficiency. When the reactor was applied for solar Sulfur Trioxide decomposition only, reactor efficiencies of up to 40% were achieved at average absorber temperature well below 1000°C. High conversions almost up to the maximum achievable conversion determined by thermodynamic equilibrium were achieved. As the reradiation of the absorber is the main contribution to energy losses of the reactor, a cavity design is predicted to be the preferable way to further raise the efficiency.
