Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation

doi:10.1016/S1004-9541(13)60540-6

Chin.J.Chem.Eng. ›› 2013, Vol. 21 ›› Issue (7): 770-775.DOI: 10.1016/S1004-9541(13)60540-6

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Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation

ZHANG Zhenzhen¹, QIAN Zhi², XU Lianbin¹, WU Caiyan¹, GUO Kai ¹

1 Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2012-07-21 Revised:2013-04-30 Online:2013-08-24 Published:2013-07-28
Supported by:
Supported by the National Natural Science Foundation of China (21106176), President Fund of GUCAS (Y15101JY00), China Postdoctoral Science Foundation (2012T50155) and National Basic Research Program of China (2009CB219903).

Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation

张珍禛¹, 钱智², 徐联滨¹, 吴彩艳¹, 郭锴¹

1 Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

通讯作者: GUO Kai
基金资助:
Supported by the National Natural Science Foundation of China (21106176), President Fund of GUCAS (Y15101JY00), China Postdoctoral Science Foundation (2012T50155) and National Basic Research Program of China (2009CB219903).

Abstract

Abstract: The carbon dioxide-water system was used to investigate the flowing gas-liquid metastable state. The experiment was carried out in a constant volume vessel with a horizontal circulation pipe and a peristaltic pump forced CO₂ saturated water to flow. The temperature and pressure were recorded. The results showed that some CO₂ escaped from the water in the flow process and the pressure increased, indicating that the gas-liquid equilibrium was broken. The amount of escaped CO₂ varied with flow speed and reached a limit in a few minutes, entitled dynamic equilibrium. Temperature and liquid movement played the same important role in breaking the phase equilibrium. Under the experimental conditions, the ratio of the excessive carbon dioxide in the gas phase to its thermodynamic equilibrium amount in the liquid could achieve 15%.

Key words: carbon dioxide, turbulence, desorption, dynamic gas-liquid phase equilibrium

摘要： The carbon dioxide-water system was used to investigate the flowing gas-liquid metastable state. The experiment was carried out in a constant volume vessel with a horizontal circulation pipe and a peristaltic pump forced CO₂ saturated water to flow. The temperature and pressure were recorded. The results showed that some CO₂ escaped from the water in the flow process and the pressure increased, indicating that the gas-liquid equilibrium was broken. The amount of escaped CO₂ varied with flow speed and reached a limit in a few minutes, entitled dynamic equilibrium. Temperature and liquid movement played the same important role in breaking the phase equilibrium. Under the experimental conditions, the ratio of the excessive carbon dioxide in the gas phase to its thermodynamic equilibrium amount in the liquid could achieve 15%.

关键词: carbon dioxide, turbulence, desorption, dynamic gas-liquid phase equilibrium

ZHANG Zhenzhen, QIAN Zhi, XU Lianbin, WU Caiyan, GUO Kai . Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation[J]. Chin.J.Chem.Eng., 2013, 21(7): 770-775.

张珍禛, 钱智, 徐联滨, 吴彩艳, 郭锴. Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation[J]. Chinese Journal of Chemical Engineering, 2013, 21(7): 770-775.

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Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation

Deviation of Carbon Dioxide-Water Gas-Liquid Balance from Thermodynamic Equilibrium in Turbulence Ⅰ: Experiment and Correlation

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