SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2019, Vol. 27 ›› Issue (10): 2407-2417.DOI: 10.1016/j.cjche.2019.03.004

• Separation Science and Engineering • 上一篇    下一篇

Experimental optimization and mathematical modeling of supercritical carbon dioxide extraction of essential oil from Pogostemon cablin

Kangning Xiong, Yun Chen, Shuai Shen   

  1. Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
  • 收稿日期:2018-08-18 修回日期:2019-03-08 出版日期:2019-10-28 发布日期:2020-01-17
  • 通讯作者: Yun Chen

Experimental optimization and mathematical modeling of supercritical carbon dioxide extraction of essential oil from Pogostemon cablin

Kangning Xiong, Yun Chen, Shuai Shen   

  1. Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
  • Received:2018-08-18 Revised:2019-03-08 Online:2019-10-28 Published:2020-01-17
  • Contact: Yun Chen

摘要: The supercritical carbon dioxide extraction was applied to obtain essential oil from Pogostemon cablin in this work. Effect of extraction parameters including temperature, pressure, extraction time and particle size on extraction yield was investigated, and the response surface methodology with a Box-Behnken Design was used to achieve the optimized extraction conditions. The maximum yield of essential oil was 2.4356% under the conditions of extraction temperature 47℃, pressure 24.5 MPa and extraction time 119 min. Moreover, based on the Brunauer-Emmett-Teller theory of adsorption, a mathematical modeling was performed to correlate the measured data. The model shows a function relationship between extraction yield and time by a simple equation with three significantly adjustable parameters. These model parameters have been optimized through simulated annealing algorithm. The predicted data from the mathematical model show a good agreement with the experimental data of the different extraction parameters.

关键词: Supercritical carbon dioxide extraction, Pogostemon cablin, Response surface methodology, Mathematical modeling, Simulated annealing algorithm

Abstract: The supercritical carbon dioxide extraction was applied to obtain essential oil from Pogostemon cablin in this work. Effect of extraction parameters including temperature, pressure, extraction time and particle size on extraction yield was investigated, and the response surface methodology with a Box-Behnken Design was used to achieve the optimized extraction conditions. The maximum yield of essential oil was 2.4356% under the conditions of extraction temperature 47℃, pressure 24.5 MPa and extraction time 119 min. Moreover, based on the Brunauer-Emmett-Teller theory of adsorption, a mathematical modeling was performed to correlate the measured data. The model shows a function relationship between extraction yield and time by a simple equation with three significantly adjustable parameters. These model parameters have been optimized through simulated annealing algorithm. The predicted data from the mathematical model show a good agreement with the experimental data of the different extraction parameters.

Key words: Supercritical carbon dioxide extraction, Pogostemon cablin, Response surface methodology, Mathematical modeling, Simulated annealing algorithm