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Purification of Waste Cooking Oils via Supercritical Carbon Dioxide Extraction

Authors
Hong, Seung-AhKim, JaehoonKim, Jae-DuckKang, Jeong WonLee, Youn-Woo
Issue Date
2010
Publisher
TAYLOR & FRANCIS INC
Keywords
extraction; supercritical carbon dioxide; waste cooking oil
Citation
SEPARATION SCIENCE AND TECHNOLOGY, v.45, no.8, pp.1139 - 1146
Indexed
SCIE
SCOPUS
Journal Title
SEPARATION SCIENCE AND TECHNOLOGY
Volume
45
Number
8
Start Page
1139
End Page
1146
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/118700
DOI
10.1080/01496391003688480
ISSN
0149-6395
Abstract
Purification of waste cooking oils (palm oil and soybean oil) using supercritical carbon dioxide (scCO2) extraction has been investigated. The purified oils were characterized by their acid value, conjugated diene value, total polar compound measurements, and high-performance size exclusion chromatography. Using optimal extractions conditions of 353.15K, 20MPa, and CO2 flow rate of 40g/min, 80% of the oil was recovered and the purified oil compositions and properties were very close to those of the fresh oils. At higher pressures or lower temperatures, the separation efficiency of the scCO2 extraction was significantly reduced.
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Graduate School of Energy and Environment (KU-KIST GREEN SCHOOL) > Department of Energy and Environment > 1. Journal Articles

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