| 利用溶液理论计算饱和甲烷中二氧化碳溶解度 |
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| 引用本文： | 沈淘淘,林文胜. 利用溶液理论计算饱和甲烷中二氧化碳溶解度[J]. 低温与超导, 2010, 38(9) |
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| 作者姓名： | 沈淘淘 林文胜 |
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| 作者单位： | 上海交通大学制冷与低温研究所,上海,200240;上海交通大学制冷与低温研究所,上海,200240 |
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| 摘 要： | 求取二氧化碳在饱和液态甲烷中的溶解度,对于在较高温度下实现液化天然气至关重要。文中在理想溶液基础上,采用正规溶液关系式和改进的Scatchard-H ildebrand关系式进行二氧化碳的溶解度计算,并且在临界点附近采用经验公式对其进行修正。将上述计算结果与Davis实验数据进行比较后表明,改进的正规溶液理论计算方法在低于140K温区时可推荐用于此项溶解度计算,经验公式可用于接近临界温度区域的溶解度计算。
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| 关 键 词： | 二氧化碳 液体甲烷 溶解度 正规溶液理论 |
Calculation of carbon dioxide solubility in saturated liquid methane with solution theory |
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| Shen Taotao,Lin Wensheng. Calculation of carbon dioxide solubility in saturated liquid methane with solution theory[J]. Cryogenics and Superconductivity, 2010, 38(9) |
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| Authors: | Shen Taotao Lin Wensheng |
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| Affiliation: | Shen Taotao,Lin Wensheng(Institute of Refrigeration and Cryogenics,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | It is important to evaluate the solubility of solid carbon dioxide in saturated liquid methane for natural gas liquefaction at relatively high temperature.The regular solution theory and the modified Scatchard-Hildebrand equation were adopted on the basis of the ideal solution hypothesis,and an empirical equation was applied to amend the results near the critical temperature in this paper.The calculation results were compared with the experiment data from Davis,and it certifies that the modified S-H equatio... |
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| Keywords: | Carbon dioxide Liquid methane Solubility Regular solution theory |
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