| 超临界流体萃取塔传质性能的研究 |
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| 引用本文： | 石冰洁,张泽廷,于恩平.超临界流体萃取塔传质性能的研究[J].北京化工大学学报(自然科学版),2001,28(3):1-4. |
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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;29976001; |
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| 摘 要： | 建立了描述连续逆流超临界流体萃取塔传质性能的数学模型。在直径为25mm连续逆流操作的超临界填料塔、筛板塔、喷淋塔中,应用超临界二氧化碳-异丙醇-水、超临界二氧化碳-乙醇-水两种实验体系对传质模型进行了实验验证,计算结果与本文实验数据符合较好。
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| 关 键 词： | 超临界流体萃取 填料塔 喷淋塔 筛板塔 传质性质 数学模型 |
| 收稿时间： | 2000-10-28 |
| 修稿时间： | 2000年10月28日 |
Mass transfer performance of supercritical fluid extraction columns |
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| SHI Bing,jie,ZHANG Ze,ting,YU En,ping.Mass transfer performance of supercritical fluid extraction columns[J].Journal of Beijing University of Chemical Technology,2001,28(3):1-4. |
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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 mass transfer performance in the supercritical fluid extraction columns by continuous counter current flow was derived. The model was tested by the experimented data in a supercritical fluid extraction packed column, sieve tray column and spray column of 25mm in diameter respectively for the systems of supercritical carbon dioxide isopropanol water and supercritical carbon dioxide ethanol water by continuous counter current flow. It showed that the results predicted by the model agreed well with the experimental data. |
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| Keywords: | supercritical fluid extraction packed column sieve tray column spray column mass transfer |
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