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Won Hi Hong - One of the best experts on this subject based on the ideXlab platform.
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antisolvent precipitation of potassium biCarbonate from khco3 h2o ethanol 2 propanol systems in the co2 capture process
Industrial & Engineering Chemistry Research, 2015Co-Authors: Taesung Jung, Won Hi HongAbstract:For the energy-saving Hot Carbonate process, which contains a crystallization step, the antisolvent precipitation of potassium biCarbonate was investigated by adding ethanol and 2-propanol in a simulated effluent solution of CO2 absorption column. The feasibility of using the antisolvent was verified with the equilibrium data of ternary systems and a KHCO3 recovery. The ternary systems of KHCO3 + H2O + ethanol/2-propanol were equilibrated with varying amounts of alcohols at a preset temperature, and the equilibrium concentrations were determined using the cloud point method. In the ethanol system, a homogeneous and a solid–liquid phase were observed, whereas in the 2-propanol system, a liquid–liquid phase as well as the homogeneous and solid–liquid phases were observed. The equilibrium data were correlated with a local concentration parameter in the range of the antisolvent. From the correlation, the amount of antisolvent that has an effect equivalent to a cooling-only method and the optimum concentration...
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Antisolvent Precipitation of Potassium BiCarbonate from KHCO3 + H2O + Ethanol/2-Propanol Systems in the CO2 Capture Process
Industrial & Engineering Chemistry Research, 2015Co-Authors: Taesung Jung, Won Hi HongAbstract:For the energy-saving Hot Carbonate process, which contains a crystallization step, the antisolvent precipitation of potassium biCarbonate was investigated by adding ethanol and 2-propanol in a simulated effluent solution of CO2 absorption column. The feasibility of using the antisolvent was verified with the equilibrium data of ternary systems and a KHCO3 recovery. The ternary systems of KHCO3 + H2O + ethanol/2-propanol were equilibrated with varying amounts of alcohols at a preset temperature, and the equilibrium concentrations were determined using the cloud point method. In the ethanol system, a homogeneous and a solid–liquid phase were observed, whereas in the 2-propanol system, a liquid–liquid phase as well as the homogeneous and solid–liquid phases were observed. The equilibrium data were correlated with a local concentration parameter in the range of the antisolvent. From the correlation, the amount of antisolvent that has an effect equivalent to a cooling-only method and the optimum concentration...
Taesung Jung - One of the best experts on this subject based on the ideXlab platform.
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antisolvent precipitation of potassium biCarbonate from khco3 h2o ethanol 2 propanol systems in the co2 capture process
Industrial & Engineering Chemistry Research, 2015Co-Authors: Taesung Jung, Won Hi HongAbstract:For the energy-saving Hot Carbonate process, which contains a crystallization step, the antisolvent precipitation of potassium biCarbonate was investigated by adding ethanol and 2-propanol in a simulated effluent solution of CO2 absorption column. The feasibility of using the antisolvent was verified with the equilibrium data of ternary systems and a KHCO3 recovery. The ternary systems of KHCO3 + H2O + ethanol/2-propanol were equilibrated with varying amounts of alcohols at a preset temperature, and the equilibrium concentrations were determined using the cloud point method. In the ethanol system, a homogeneous and a solid–liquid phase were observed, whereas in the 2-propanol system, a liquid–liquid phase as well as the homogeneous and solid–liquid phases were observed. The equilibrium data were correlated with a local concentration parameter in the range of the antisolvent. From the correlation, the amount of antisolvent that has an effect equivalent to a cooling-only method and the optimum concentration...
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Antisolvent Precipitation of Potassium BiCarbonate from KHCO3 + H2O + Ethanol/2-Propanol Systems in the CO2 Capture Process
Industrial & Engineering Chemistry Research, 2015Co-Authors: Taesung Jung, Won Hi HongAbstract:For the energy-saving Hot Carbonate process, which contains a crystallization step, the antisolvent precipitation of potassium biCarbonate was investigated by adding ethanol and 2-propanol in a simulated effluent solution of CO2 absorption column. The feasibility of using the antisolvent was verified with the equilibrium data of ternary systems and a KHCO3 recovery. The ternary systems of KHCO3 + H2O + ethanol/2-propanol were equilibrated with varying amounts of alcohols at a preset temperature, and the equilibrium concentrations were determined using the cloud point method. In the ethanol system, a homogeneous and a solid–liquid phase were observed, whereas in the 2-propanol system, a liquid–liquid phase as well as the homogeneous and solid–liquid phases were observed. The equilibrium data were correlated with a local concentration parameter in the range of the antisolvent. From the correlation, the amount of antisolvent that has an effect equivalent to a cooling-only method and the optimum concentration...
Michael Jerry Antal - One of the best experts on this subject based on the ideXlab platform.
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aqueous potassium biCarbonate Carbonate ionic equilibria at elevated pressures and temperatures
Industrial & Engineering Chemistry Research, 2013Co-Authors: Maider Legarra, Ashley Blitz, Zsuzsanna Czegeny, Michael Jerry AntalAbstract:Aqueous biCarbonate/Carbonate ionic equilibria play an important role in determining the practicality of various aqueous-alkaline fuel cells and the Hot Carbonate process for removing carbon dioxide from synthesis gas streams. These equilibria are also of interest to scientists concerned with climate change. In this article, we report measurements of aqueous biCarbonate/Carbonate ionic equilibria between 150 and 320 °C at the solutions’ respective saturation pressures. The aqueous biCarbonate ions are not stable at temperatures above 150 °C: the biCarbonate decomposes into Carbonate and aqueous CO2. The dissolved CO2 is released from the solution when the reaction vessel is quickly cooled and depressurized, leaving behind stable Carbonate ions in a solution with increased pH. A thermodynamic analysis of these findings indicates that the spontaneous and endothermic biCarbonate decomposition reaction proceeds with a positive change in entropy.
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Aqueous Potassium BiCarbonate/Carbonate Ionic Equilibria at Elevated Pressures and Temperatures
Industrial & Engineering Chemistry Research, 2013Co-Authors: Maider Legarra, Ashley Blitz, Zsuzsanna Czegeny, Michael Jerry AntalAbstract:Aqueous biCarbonate/Carbonate ionic equilibria play an important role in determining the practicality of various aqueous-alkaline fuel cells and the Hot Carbonate process for removing carbon dioxide from synthesis gas streams. These equilibria are also of interest to scientists concerned with climate change. In this article, we report measurements of aqueous biCarbonate/Carbonate ionic equilibria between 150 and 320 °C at the solutions’ respective saturation pressures. The aqueous biCarbonate ions are not stable at temperatures above 150 °C: the biCarbonate decomposes into Carbonate and aqueous CO2. The dissolved CO2 is released from the solution when the reaction vessel is quickly cooled and depressurized, leaving behind stable Carbonate ions in a solution with increased pH. A thermodynamic analysis of these findings indicates that the spontaneous and endothermic biCarbonate decomposition reaction proceeds with a positive change in entropy.
Maider Legarra - One of the best experts on this subject based on the ideXlab platform.
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aqueous potassium biCarbonate Carbonate ionic equilibria at elevated pressures and temperatures
Industrial & Engineering Chemistry Research, 2013Co-Authors: Maider Legarra, Ashley Blitz, Zsuzsanna Czegeny, Michael Jerry AntalAbstract:Aqueous biCarbonate/Carbonate ionic equilibria play an important role in determining the practicality of various aqueous-alkaline fuel cells and the Hot Carbonate process for removing carbon dioxide from synthesis gas streams. These equilibria are also of interest to scientists concerned with climate change. In this article, we report measurements of aqueous biCarbonate/Carbonate ionic equilibria between 150 and 320 °C at the solutions’ respective saturation pressures. The aqueous biCarbonate ions are not stable at temperatures above 150 °C: the biCarbonate decomposes into Carbonate and aqueous CO2. The dissolved CO2 is released from the solution when the reaction vessel is quickly cooled and depressurized, leaving behind stable Carbonate ions in a solution with increased pH. A thermodynamic analysis of these findings indicates that the spontaneous and endothermic biCarbonate decomposition reaction proceeds with a positive change in entropy.
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Aqueous Potassium BiCarbonate/Carbonate Ionic Equilibria at Elevated Pressures and Temperatures
Industrial & Engineering Chemistry Research, 2013Co-Authors: Maider Legarra, Ashley Blitz, Zsuzsanna Czegeny, Michael Jerry AntalAbstract:Aqueous biCarbonate/Carbonate ionic equilibria play an important role in determining the practicality of various aqueous-alkaline fuel cells and the Hot Carbonate process for removing carbon dioxide from synthesis gas streams. These equilibria are also of interest to scientists concerned with climate change. In this article, we report measurements of aqueous biCarbonate/Carbonate ionic equilibria between 150 and 320 °C at the solutions’ respective saturation pressures. The aqueous biCarbonate ions are not stable at temperatures above 150 °C: the biCarbonate decomposes into Carbonate and aqueous CO2. The dissolved CO2 is released from the solution when the reaction vessel is quickly cooled and depressurized, leaving behind stable Carbonate ions in a solution with increased pH. A thermodynamic analysis of these findings indicates that the spontaneous and endothermic biCarbonate decomposition reaction proceeds with a positive change in entropy.
Zsuzsanna Czegeny - One of the best experts on this subject based on the ideXlab platform.
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aqueous potassium biCarbonate Carbonate ionic equilibria at elevated pressures and temperatures
Industrial & Engineering Chemistry Research, 2013Co-Authors: Maider Legarra, Ashley Blitz, Zsuzsanna Czegeny, Michael Jerry AntalAbstract:Aqueous biCarbonate/Carbonate ionic equilibria play an important role in determining the practicality of various aqueous-alkaline fuel cells and the Hot Carbonate process for removing carbon dioxide from synthesis gas streams. These equilibria are also of interest to scientists concerned with climate change. In this article, we report measurements of aqueous biCarbonate/Carbonate ionic equilibria between 150 and 320 °C at the solutions’ respective saturation pressures. The aqueous biCarbonate ions are not stable at temperatures above 150 °C: the biCarbonate decomposes into Carbonate and aqueous CO2. The dissolved CO2 is released from the solution when the reaction vessel is quickly cooled and depressurized, leaving behind stable Carbonate ions in a solution with increased pH. A thermodynamic analysis of these findings indicates that the spontaneous and endothermic biCarbonate decomposition reaction proceeds with a positive change in entropy.
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Aqueous Potassium BiCarbonate/Carbonate Ionic Equilibria at Elevated Pressures and Temperatures
Industrial & Engineering Chemistry Research, 2013Co-Authors: Maider Legarra, Ashley Blitz, Zsuzsanna Czegeny, Michael Jerry AntalAbstract:Aqueous biCarbonate/Carbonate ionic equilibria play an important role in determining the practicality of various aqueous-alkaline fuel cells and the Hot Carbonate process for removing carbon dioxide from synthesis gas streams. These equilibria are also of interest to scientists concerned with climate change. In this article, we report measurements of aqueous biCarbonate/Carbonate ionic equilibria between 150 and 320 °C at the solutions’ respective saturation pressures. The aqueous biCarbonate ions are not stable at temperatures above 150 °C: the biCarbonate decomposes into Carbonate and aqueous CO2. The dissolved CO2 is released from the solution when the reaction vessel is quickly cooled and depressurized, leaving behind stable Carbonate ions in a solution with increased pH. A thermodynamic analysis of these findings indicates that the spontaneous and endothermic biCarbonate decomposition reaction proceeds with a positive change in entropy.