| 地质封存中CO_2盐水溶液的表观摩尔体积模型 |
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| 引用本文： | 张毅,宋永臣,建伟伟,詹扬春,刘瑜,林伟豪,沈勇.地质封存中CO_2盐水溶液的表观摩尔体积模型[J].环境科学与技术,2012,35(1):25-27. |
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| 作者姓名： | 张毅 宋永臣 建伟伟 詹扬春 刘瑜 林伟豪 沈勇 |
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| 作者单位： | 大连理工大学能源与动力学院,海洋能源利用与节能教育部重点实验室,辽宁大连116024 |
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| 基金项目： | 国家自然科学基金重点项目，青年科学基金，中央高校基本科研业务费专项资金 |
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| 摘 要： | 在现有CO2盐水溶液密度模型的基础上,根据CO2地下盐水溶液密度实验数据,考虑了温度、压力和CO2质量分数三个参数的影响,建立了CO2盐水溶液的表观摩尔体积模型。模型结果表明该模型能在30~50℃、10~20 MPa温压范围内准确预测CO2在盐水溶液中的表观摩尔体积,将预测结果与实验数据进行对比发现最大相对误差为0.25%,平均相对误差为0.1%,模型预测精度明显高于现有的CO2盐水溶液表观摩尔体积模型,为CO2地下盐水层封存提供了必要的基础。
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| 关 键 词： | CO2封存 地下盐水层 密度 表观摩尔体积模型 |
Apparent Molar Volume Model of CO2 Saline Solution for Geological Sequestration |
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| ZHANG Yi
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SONG Yong-chen
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JIAN Wei-wei
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ZHAN Yang-chun
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LIU Yu
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LIN Wei-hao
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SHEN Yong.Apparent Molar Volume Model of CO2 Saline Solution for Geological Sequestration[J].Environmental Science and Technology,2012,35(1):25-27. |
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| Authors: | ZHANG Yi SONG Yong-chen JIAN Wei-wei ZHAN Yang-chun LIU Yu LIN Wei-hao SHEN Yong |
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| Institution: | (Key Laboratory of Ministry of Education of Ocean Energy Utilization and Energy Conservation,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | Based on existing CO2 saline solution density model and experimental data of CO2 subsurface brine solution density,considering the effect of temperature,pressure and CO2 mass fraction,apparent molar volume model for CO2 saline solution was established.Results showed that the model can predict the apparent molar volume of CO2 brine solution in the temperature range 30~50℃ from 10 to 20 MPa.The maximum relative error was 0.25% and average relative error was 0.1% compared with the experimental data.The model prediction accuracy was obviously higher than the existing CO2 saline solution apparent molar volume model for CO2 geological sequestration. |
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| Keywords: | CO2 geological sequestration saline aquifer density apparent molar volume model |
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