학술논문
An experimental and simulating study of supercritical CO.sub.2 extraction for pepper oil
Document Type
Report
Source
Chemical Engineering & Processing. April, 2006, Vol. 45 Issue 4, p264, 4 p.
Subject
Language
English
ISSN
0255-2701
Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.cep.2005.08.005 Byline: Li Zhiyi (a), Liu Xuewu (a), Chen Shuhua (b), Zhang Xiaodong (a), Xia Yuanjing (a), Wei Yong (a), Xiao Feng (a) Keywords: Supercritical CO.sub.2 extraction; Pepper oil; Optimum process condition Abstract: The experimental equipment for separating pepper oil by supercritical fluid extraction was established. The effects of the extraction pressure, extraction temperature, CO.sub.2 flow rate and the particle size of the row material on the extraction rate were investigated, and the optimum process condition of the supercritical fluid extraction for pepper oil was determined. Based on the mass conservation principle for differential units of extraction bed, the numerical simulation model was established. The total of mass transfer driving force and the equilibrium absorption constant were fitted by the linear driving force approximate theory. The simulation results agreed pretty well with the experimental ones. Author Affiliation: (a) R&D Institute of Fluid and Powder Engineering, Dalian University of Technology, 158 Zhongshan Road, Xigang District, Dalian 116012, PR China (b) Environment and Chemical Engineering Institute, Dalian University, Kaifa District, Dalian 116622, PR China Article History: Received 6 February 2004; Revised 26 July 2005; Accepted 5 August 2005