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| 萃取鸦胆子油过程模拟 | |
| 引用本文： | 雷华平,葛发欢,胡巧怡,卜晓英.萃取鸦胆子油过程模拟[J].林产化学与工业,2008,28(1):108-112. |
| 作者姓名： | 雷华平 葛发欢 胡巧怡 卜晓英 |
| 作者单位： | 1. 吉首大学湖南省林产化工工程重点实验室,湖南,张家界,427000 2. 中药提取分离过程现代化国家工程研究中心,广东,广州,510240 3. 华南农业大学理学院,广东,广州,510642 |
| 摘 要： | 研究超临界CO2萃取(SCDE)鸦胆子油的动力学.建立了超临界CO2萃取鸦胆子油的质量守恒微分方程动力学模型,对萃取过程进行模拟.该模型直观地模拟出了萃取过程中萃取床内CO2流体中溶质质量分数在萃取时间和萃取床高度上的分布,并且模拟出了萃取釜出口处CO2流体中溶质质量分数随萃取时间的变化.该模型能较好地模拟实际萃取过程,模拟值与实验值之间的误差在10%以内,能较好地反映萃取压力和萃取温度等工艺参数对萃取收率和萃取过程的影响. |
| 关 键 词： | 超临界CO2萃取 模拟 鸦胆子油 |
| 文章编号： | 0253-2417（2008）01-0108-05 |
| 收稿时间： | 2007-01-18 |
| 修稿时间： | 2007年1月18日 |
Modeling of the Extraction Process of Brucea javanica(Linn.) Merr.Oil with Supercritical Carbon Dioxide |
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| LEI Hua-ping,GE Fa-huan,HU Qiao-yi,BU Xiao-ying.Modeling of the Extraction Process of Brucea javanica(Linn.) Merr.Oil with Supercritical Carbon Dioxide[J].Chemistry & Industry of Forest Products,2008,28(1):108-112. | |
| Authors: | LEI Hua-ping GE Fa-huan HU Qiao-yi BU Xiao-ying |
| Abstract: | The kinetics of extraction of Brucea javanica(Linn.)Merr.oil with supercritical CO2 was studied through simulation of the process.A kinetic model of extraction of B.javanica oil using supercritical CO2 was developed on the basis of the differential mass balance to simulate the extraction process.The model could simulate the distribution of the solute concentration in CO2 inside extraction bed as a function of extraction time and height of extraction bed.The model could also simulate the solute concentration in CO2 in the outlet of the extractor as a function of time.This model could simulate satisfactorily the process of extraction with the error between simulation data and experimental data less than 10 %,and the effects of the parameters such as pressure and temperature on extraction yield were investigated through the model. |
| Keywords: | supercritical CO_2 extraction simulation Brucea javanica(Linn )Merr oil |
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