| 超临界CO2萃取生姜油实验研究与数值模拟 |
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| 引用本文： | 刘学武,李志义,张晓冬,夏远景,苑塔亮.超临界CO2萃取生姜油实验研究与数值模拟[J].过滤与分离,2004,14(2):18-21. |
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| 作者姓名： | 刘学武 李志义 张晓冬 夏远景 苑塔亮 |
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| 作者单位： | 大连理工大学,流体与粉体工程研究设计所,辽宁,大连,116012;大连理工大学,流体与粉体工程研究设计所,辽宁,大连,116012;大连理工大学,流体与粉体工程研究设计所,辽宁,大连,116012;大连理工大学,流体与粉体工程研究设计所,辽宁,大连,116012;大连理工大学,流体与粉体工程研究设计所,辽宁,大连,116012 |
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| 摘 要： | 利用自建的超临界流体萃取实验装置,以CO2为萃取剂,考察了萃取压力、温度、流体流量及原料颗粒度等因素对生姜油累积萃取率的影响,由此确定了较佳的萃取工艺条件。基于萃取器微分单元质量守恒原理,建立了数学模型,并利用直线推动力近似理论拟合了总传质推动力及平衡吸收常数,对实验结果进行了数值模拟。
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| 关 键 词： | 超临界CO2萃取 生姜油 数值模拟 |
| 文章编号： | 1005-8265(2004)02-0018-04 |
| 修稿时间： | 2004年4月10日 |
Experimental Research and Numerical Simulation of the Supercritical CO2 Extraction of Ginger Oils |
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| LIU Xue-wu,LI Zhi-yi,ZHANG Xiao-dong,XIA Yuan-jing,YUAN Ta-liang.Experimental Research and Numerical Simulation of the Supercritical CO2 Extraction of Ginger Oils[J].China Filtration & Separation,2004,14(2):18-21. |
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| Authors: | LIU Xue-wu LI Zhi-yi ZHANG Xiao-dong XIA Yuan-jing YUAN Ta-liang |
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| Abstract: | The effects of the extraction pressure and temperature,the flow rate of supercritical CO2 and the partical size distribution of the material to be extractecd on the extraction rate of ginger essential oil are experimentally investigated.The optimum operation condition for the extraction of ginger essential oil with supercritical CO2 are determined.A material model is proposed based on the mass conservation of the differential units along extraction bed.The total driving force of mass transfer and the equilibrium absorbing constant are obtained by fitting experiment data with the linear driving force theroy.The simulationg calculations are conductecd and the results are compared with experimental ones. |
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| Keywords: | supercitical CO2 extraction ginger essential oils simulation |
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