| 超临界二氧化碳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,陈淑花,詹世平,夏远景,魏勇.超临界二氧化碳萃取生姜油实验研究与数值模拟[J].中国化学工程学报,2005,13(4):572-576. |
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| 作者姓名： | 刘学武 李志义 陈淑花 詹世平 夏远景 魏勇 |
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| 作者单位： | [1]R＆D Institute of Fluid and Powder Engineering, Dalian University of Technology, Dalian 116012, China [2]Department of Chemisty and Chemical Engineering, Dalian University, Dalian 116012, China |
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| 摘 要： | 1 INTRODUCTION Supercritical fluid extraction (SFE) as an alter- native to conventional processes, such as solvent ex- traction and steam distillation for obtaining essential oils, is a novel technique especially attractive to the food, cosmetics and Pharmaceuticals industries. The extracts from SFE are free of solvent residues. In ad- dition, the process can be conducted at low tempera- ture, which is very important to preserve the quality of heat-sensitive products1,2]. Ginger (Zing…
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| 关 键 词： | 生姜油 超临界二氧化碳 萃取工艺 数值模拟 SFE工艺 |
| 收稿时间： | 2004-08-09 |
| 修稿时间： | 2004-08-092005-05-03 |
Experimental and Simulating Study of Supercritical CO2 Extraction of Ginger Essential Oil |
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| LIU Xuewu,LI Zhiyi,Chen Shuhua,ZHAN Shiping,XIA Yuanjing,WEI Yong.Experimental and Simulating Study of Supercritical CO2 Extraction of Ginger Essential Oil[J].Chinese Journal of Chemical Engineering,2005,13(4):572-576. |
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| Authors: | LIU Xuewu LI Zhiyi Chen Shuhua ZHAN Shiping XIA Yuanjing WEI Yong |
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| Affiliation: | R&D Institute of Fluid and Powder Engineering, Dalian University of Technology, Dalian 116012, China;Department of Chemisty and Chemical Engineering, Dalian University, Dalian 116012, China |
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| Abstract: | An experimental setup for separating ginger essential oil by supercritical fluid extraction is established. The effects of the extraction pressure, temperature, CO2 flow rate and particle size of raw material on the extraction rate are investigated, and the optimum process conditions of supercritical CO2 extraction are determined. A mathematical simulation model is established based on the mass conservation in differential units of extraction bed. The total mass transfer driving force and the equilibrium absorption constant are evaluated by the linear driving force theory. The results from numerical simulation agree well with the experimental data. |
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| Keywords: | supercritical CO2 extraction ginger essential oil simulation |
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