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首页> 外文期刊>日本マリンエンジニアリング学会誌 >Study of Solution Process of Carbon Dioxide in Seawater
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Study of Solution Process of Carbon Dioxide in Seawater

机译：二氧化碳在海水中的溶解过程研究

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摘要

Carbon dioxide (CO{sub}2) ocean sequestration technologies, such as dissolution into seawater, are important to mitigate global warming. In this study, solution processes of CO{sub}2 gas in seawater and pure water were experimentally studied under various pressures and temperatures to evaluate the solubilities of CO{sub}2 in seawater, The solubilities of CO{sub}2 in seawater and pure water were measured by a change in pressure due to absorption at pressures up to 30 MPa and the temperatures ranged from 4℃ to 60℃" It was obtained that the solubilities of CO{sub}2 were between 0.27×10{sup}(-3) and 1.26×10{sup}(-3) in seawater, and between 0.26×10{sup}(-3) and 0.6×10{sup}(-3) in pure water near atmospheric pressure. The values increase with an increase in pressure, but decrease with an increase in temperature. The Henry's law constant of CO{sub}2 was about 105 MPa at a temperature of 4℃ in seawater under atmospheric pressure, and increased with an increase in temperature. The solubility of CO{sub}2 in seawater was lower than that in pure water. Empirical correlations for solubilities of CO{sub}2 in seawater and pure water at various temperatures under atmospheric pressure were obtained based on the experimental data.
机译：二氧化碳（CO {sub} 2）的海洋固存技术，例如溶解到海水中，对于缓解全球变暖至关重要。在这项研究中，实验研究了在各种压力和温度下海水和纯水中CO {sub} 2气体的溶解过程，以评估CO {sub} 2在海水中的溶解度，CO {sub} 2在海水中的溶解度和通过在高达30 MPa的压力和4℃至60℃的温度范围内吸收引起的压力变化来测量纯净水。”结果表明，CO {sub} 2的溶解度在0.27×10 {sup}（ -3）和1.26×10 {sup}（-3）在海水中，而纯水在接近大气压的0.26×10 {sup}（-3）和0.6×10 {sup}（-3）之间。在大气压力下，海水中4℃下，CO {sub} 2的亨利定律常数约为105 MPa，随温度的升高而降低，随温度的升高而增加。海水中CO {sub} 2的溶解度低于纯净水中CO {sub} 2的溶解度的经验相关性根据实验数据获得在大气压下各种温度下的温度。

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