D209 TRANSPORT PROCESS OF CARBON DIOXIDE IN SEAWATER AND SYNTHETIC SEAWATER(Environmental Protection-1)

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概要

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• Carbon dioxide (CO_2) ocean sequestration technologies, such as dissolution into seawater, are important to mitigate global warming. In this study, solution processes of CO_2 gas in seawater and synthetic seawater were experimentally and theoretically studied under various pressures and temperatures to evaluate the transport process of CO_2 in seawater. The solubilities of CO_2 in seawater and synthetic seawater were measured by a change in pressure due to absorption at pressures up to 3 MPa and the temperatures ranged from 276 K to 333 K. It was obtained that the solubilities of CO_2 increase with an increase in pressure, but decrease with an increase in temperature. The solubility of CO_2 in synthetic seawater decreases with an increase in salt concentration. Empirical correlations for solubilities of CO_2 in seawater at various temperatures and pressures were obtained based on the experimental data. In the theoretical analysis for the solution of single CO_2 bubble in seawater, the single CO_2 bubble was assumed to be stationary and surrounded by infinite liquid seawater. The rate of solution of bubble in liquid is affected strongly by various parameters, such as solubility, diffusion coefficient, bubble radius, and temperature.

• 一般社団法人日本機械学会の論文
• 2009-11-16

著者

• Liu Qiusheng

  Dept. Of Marine Eng. Kobe University

• Fukuda Katsuya

  Dept. Of Marine Eng. Kobe University

• YANG Yongwei

  Dept. of Marine Eng., Kobe University

• Yang Yongwei

  Dept. Of Marine Eng. Kobe University

関連論文

• ICONE11-36467 Transient Heat Transfer for Helium Gas Flowing Over a Horizontal Cylinder with Exponentially Increasing Heat Input
• D209 TRANSPORT PROCESS OF CARBON DIOXIDE IN SEAWATER AND SYNTHETIC SEAWATER(Environmental Protection-1)

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