| 固态物料超临界CO2萃取的传质模型 |
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| 引用本文： | 廖传华,黄振仁,顾国亮. 固态物料超临界CO2萃取的传质模型[J]. 精细化工, 2004, 21(7): 502-506 |
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| 作者姓名： | 廖传华 黄振仁 顾国亮 |
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| 作者单位： | 南京工业大学,机械与动力工程学院,江苏,南京,210009;南京工业大学,理学院,江苏,南京,210009 |
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| 基金项目： | 江苏省教委自然科学基金(99KJD530003) |
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| 摘 要： | 对超临界CO2萃取固体物料的过程进行了机理分析,在分子缔合理论的基础上建立了描述超临界CO2流体萃取固态物料传质特性的数学模型,确立了用于估算超临界CO2流体萃取固态物料颗粒所需时间的方法,并提出了宏观萃取速率表达式,实现了超临界萃取过程研究的计算机化,既可从过程的静态和动态特征寻求适当的操作和控制,实现过程的数学模拟放大,有助于投资前的经济预算,有效减小投资风险,也可作为超临界CO2萃取过程的研究手段,减少实验探索的工作量。
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| 关 键 词： | 超临界CO2萃取 传质 数学模型 |
| 文章编号： | 1003-5214(2004)07-0502-05 |
Mass Transfer Model for Supercritical CO2 Extraction of Solid Raw Material |
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| LIAO Chuan-hua,HUANG Zhen-ren,GU Guo-liang. Mass Transfer Model for Supercritical CO2 Extraction of Solid Raw Material[J]. Fine Chemicals, 2004, 21(7): 502-506 |
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| Authors: | LIAO Chuan-hua HUANG Zhen-ren GU Guo-liang |
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| Affiliation: | LIAO Chuan-hua~1,HUANG Zhen-ren~1,GU Guo-liang~2 |
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| Abstract: | The mechanism of extraction of solid raw material with supercritical CO_2 was analyzed,a model describing its mass transfer characteristic was established,a method to estimate extraction time was formed,and a calculation formula for mass transfer rate was derived.Thus,the computerized research for supercritical CO_2 extraction was achieved.All of these are contributive to realize the simulated scale-up of extraction process so as to reduce the investment risk according to economic budget before investment,and also to reduce the exploring experiments of research on supercritical CO_2 extraction. |
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| Keywords: | supercritical CO_2 extraction mass transfer model |
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