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。
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 con- centration 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
出处
《林产化学与工业》
EI
CAS
CSCD
2008年第1期108-112,共5页
Chemistry and Industry of Forest Products
关键词
超临界CO2萃取
模拟
鸦胆子油
supercritical CO2 extraction
simulation
Brucea javanica （ Linn. ） Merr. oil
