| 超临界CO2萃取柴胡挥发油的工艺及模型 |
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| 引用本文： | 侯彩霞,李淑芬,刘乃汇,马友光.超临界CO2萃取柴胡挥发油的工艺及模型[J].天津大学学报(自然科学与工程技术版),2009,42(2):177-182. |
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| 作者姓名： | 侯彩霞 李淑芬 刘乃汇 马友光 |
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| 作者单位： | 侯彩霞,HOU Cai-xia(天津大学化工学院,绿色合成与转化教育部重点实验室,天津,300072;河北理工大学化工与生物技术学院,唐山,063009;唐山三友集团有限公司,唐山,063305);李淑芬,马友光,LI Shu-fen,MA You-guang(天津大学化工学院,绿色合成与转化教育部重点实验室,天津,300072);刘乃汇,LIU Nai-hui(天津大学化工学院,绿色合成与转化教育部重点实验室,天津,300072;南开大学化学院,天津,300071)
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| 摘 要： | 考察了萃取温度、萃取压力、CO2流量对萃取所得挥发油收率的影响。实验结果表明：挥发油收率随萃取温度和萃取压力的升高而增大，随CO2流量的增大先增大后减小；适宜的萃取条件为萃取温度50℃，压力20MPa，CO2流量1.5L／min。利用经验模型（EM）和两个简化的质量平衡模型（SM）对萃取过程进行了模拟。计算结果表明，经验模型拟合所得实验值和计算值的平均相对误差范围为2.07％-6.72％，简化的质量平衡模型Ⅱ（SMⅡ）拟合所得实验值和计算值的平均相对误差几乎都小于3.40％，表明经验模型和SMⅡ都能很好地描述SC-CO2萃取柴胡挥发油的过程。
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| 关 键 词： | 柴胡 挥发油 超临界CO2 模拟 |
Process and Models for Extraction of Volatile Oils from Radix Bupleuri with Supercritical Carbon Dioxide |
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| HOU Cai-xia,LI Shu-fen,LIU Nai-hui,MA You-guang.Process and Models for Extraction of Volatile Oils from Radix Bupleuri with Supercritical Carbon Dioxide[J].Journal of Tianjin University(Science and Technology),2009,42(2):177-182. |
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| Authors: | HOU Cai-xia LI Shu-fen LIU Nai-hui MA You-guang |
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| Institution: | HOU Cai-xia, LI Shu-fen, LIUNai-hui, MAYou-guang(1. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University,Tianjin 300072 ,China;2.College of Chemical Engineering and Biological Technology,Hebei Polytechnic University, Tangshan 063009,China;3.Tangshan Sanyou Group Company Limited,Tangshan 063305, China;4. College of Chemistry, Nankai University, Tianjin 300071, China) |
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| Abstract: | Effects of extraction temperature and pressure, CO2 flow rate on the yield of volatile oils were investigated. The experimental results show that the yield of the oils increases with increasing temperature and pressure, and the yield increases and then decreases with increasing flow rate of CO2; the optimal extraction conditions are extraction temperature of 50℃, extraction pressure of 20 MPa, and CO2 flow rate of 1.5 L/min. The extraction process was simulated by an empirical model （EM） and two simple mass balance models （SM）. The simulating results show that the average relative deviations （ARD） of the empirical model are ranging from 2.07% to 6.72% and almost all the ARD of the simple mass balance model Ⅱ（SMⅡ） are lower than 3.40%, indicating that both EM and SMⅡ fit the extraction process of volatile oils from Radix Bupleuri with SC-CO2. |
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| Keywords: | Radix Bupleuri volatile oil supercritical carbon dioxide simulation |
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