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题名: Analysis of the operation conditions for supercritical fluid extraction of seed oil
作者: Yin, JZ;  Wang, AQ;  Wei, W;  Liu, Y;  Shi, WH
关键词: supercritical fluid extraction ;  Hippophae rhamnoides L. ;  operation conditions
刊名: SEPARATION AND PURIFICATION TECHNOLOGY
发表日期: 2005-05-01
DOI: 10.1016/j.seppur.2004.10.016
卷: 43, 期:2, 页:163-167
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: In this paper, a SCFE set-up with an extraction volume of I L was established, with which Hippophae rhamnoides L. seed oil was extracted using supercritical CO2. The experiments show that many factors have impacts on the oil yield, such as extraction pressure, temperature, and fluid flow rate, as well as seed particle size and filling quantity. For the extraction process of Hippophae rhamnoides L. seed oil, the optimum conditions were as follows: extraction pressure of 20-30 MPa, extraction temperature of 35-40 degrees C, supercritical CO2 flow rate of 0.15-0.3 m(3)/h, and extraction time of 4-5 h. Under such a condition, the oil obtained is very lucid and good quality, and the yield is as high as above 90%. GC analysis shows that the oil contains 11.44% of saturated fatty acid and 88.56% of unsaturated fatty acid. From the changes of oil yield with the extraction time, it can be concluded that the extraction process contains three stages: fast extraction stage (approximate a linear style), transitional stage (very short period of time) and the slow extraction stage Oust a little amount of oil can be extracted in this stage). At the first stage, 75-80% of the oil has been extracted out. (C) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: CO2 EXTRACTION ;  MASS-TRANSFER ;  PACKED-BEDS ;  SIMULATION
语种: 英语
WOS记录号: WOS:000229342200008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139886
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Yin, JZ,Wang, AQ,Wei, W,et al. Analysis of the operation conditions for supercritical fluid extraction of seed oil[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2005,43(2):163-167.
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