本文主要研究内容
作者（2019）在《Thermodynamics of NaHCO3 decomposition during Na2CO3-based CO2capture》一文中研究指出：Amine-basedcarbon-capture technologies have been shown to be energetically expensive and to cause significant environmental and epidemiological impacts due to their volatility.Bicarbonate formation from carbon dioxide’s reaction with water has been suggested as an effective alternative for capturing CO2;however,the thermodynamics of this reaction are not well understood.This study experimentally determined the equilibrium constant of sodium bicarbonate（Na HCO3）decomposition to sodium,water,and carbon dioxide;the study also compared the equilibrium constant to theoretical calculations.Using a combination of experimentation and thermodynamic relationships,the unitless equilibrium constants of the forward and reverse reactions were calculated accurately（error<±9%and<±4%,respectively）.Equilibrium data were calculated using enthalpy and entropy values of each component of Na HCO3decomposition at temperatures ranging from 25 to 155°C respectively.These results offer more data essential to optimizing Na HCO3use in environmentally friendly nextgeneration CO2-capture technologies.
Abstract
Amine-basedcarbon-capture technologies have been shown to be energetically expensive and to cause significant environmental and epidemiological impacts due to their volatility.Bicarbonate formation from carbon dioxide’s reaction with water has been suggested as an effective alternative for capturing CO2;however,the thermodynamics of this reaction are not well understood.This study experimentally determined the equilibrium constant of sodium bicarbonate（Na HCO3）decomposition to sodium,water,and carbon dioxide;the study also compared the equilibrium constant to theoretical calculations.Using a combination of experimentation and thermodynamic relationships,the unitless equilibrium constants of the forward and reverse reactions were calculated accurately（error<±9%and<±4%,respectively）.Equilibrium data were calculated using enthalpy and entropy values of each component of Na HCO3decomposition at temperatures ranging from 25 to 155°C respectively.These results offer more data essential to optimizing Na HCO3use in environmentally friendly nextgeneration CO2-capture technologies.
论文参考文献
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：Thermodynamics of NaHCO3 decomposition during Na2CO3-based CO2capture论文
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