| 超临界流体萃取塔流体力学特性的研究 |
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| 引用本文： | 石冰洁,张泽廷,于恩平.超临界流体萃取塔流体力学特性的研究[J].北京化工大学学报(自然科学版),2000,27(4):15-18. |
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| 作者姓名： | 石冰洁 张泽廷 于恩平 |
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| 作者单位： | 北京化工大学化学工程学院，北京 100029 |
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| 基金项目： | 国家自然科学基金，国家科技攻关项目 |
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| 摘 要： | 推导和建立了描述超临界流体萃取塔两相流体力学特性的数学模型。在Φ25mm连续逆流操作的超临界填料萃取塔、筛板萃取塔和喷淋萃取塔中,应用超临界二氧化碳-异丙醇-水、超临界二氧化碳-乙醇-水两种实验体系对流体力学模型进行了实验验证,计算结果与实验数据吻合较好。
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| 关 键 词： | 超临界流体萃取 填料塔 喷淋塔 筛板塔 流体力学 超临界流体萃取 填料塔 喷淋塔 筛板塔 流体力学 |
| 收稿时间： | 2000-03-15 |
Study on hydrodynamics characteristics in supercritical fluid extraction column |
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| SHI Bing-jie,ZHANG Ze-ting,YU En-ping.Study on hydrodynamics characteristics in supercritical fluid extraction column[J].Journal of Beijing University of Chemical Technology,2000,27(4):15-18. |
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| Authors: | SHI Bing-jie ZHANG Ze-ting YU En-ping |
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| Institution: | College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | A new model for describing two phase flow in a supercritical fluid extraction column was derived. The model was tested by two phase flow experiments carried out in packed column, spray column and sieve column all with 25 mm in diameter, respectively, with two supercritical fluid extraction systems, which are carbon dioxide isopropanol water and carbon dioxide ethanol water by means of anti continuous current. It showed that the results of the model agreed well with the experimental data for predicting hydrodynamic performance. |
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| Keywords: | supercritical fluid extraction packed column spray column sieve column hydrodynamics |
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