Purification of waste cooking oils via supercritical carbon dioxide extraction

Seung Ah Hong; Jaehoon Kim; Jae Duck Kim; Jeong Won Kang; Youn Woo Lee

doi:10.1080/01496391003688480

Purification of waste cooking oils via supercritical carbon dioxide extraction

Seung Ah Hong, Jaehoon Kim, Jae Duck Kim, Jeong Won Kang, Youn Woo Lee

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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 353.15 K, 20 MPa, and CO₂ flow rate of 40 g/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.

Original language	English
Pages (from-to)	1139-1146
Number of pages	8
Journal	Separation Science and Technology
Volume	45
Issue number	8
DOIs	https://doi.org/10.1080/01496391003688480
Publication status	Published - 2010 Jan

Keywords

Extraction
Supercritical carbon dioxide
Waste cooking oil

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Process Chemistry and Technology
Filtration and Separation

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10.1080/01496391003688480

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title = "Purification of waste cooking oils via supercritical carbon dioxide extraction",

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 353.15 K, 20 MPa, and CO2 flow rate of 40 g/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.",

keywords = "Extraction, Supercritical carbon dioxide, Waste cooking oil",

author = "Hong, {Seung Ah} and Jaehoon Kim and Kim, {Jae Duck} and Kang, {Jeong Won} and Lee, {Youn Woo}",

note = "Funding Information: This research was supported by Korea Environmental Industry & Technology Institute (Project No. 202-091-003). Partial support by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) (NRF-2009-C1AAA001-2009-0092935) is appreciated.",

year = "2010",

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doi = "10.1080/01496391003688480",

language = "English",

volume = "45",

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AU - Hong, Seung Ah

AU - Kim, Jaehoon

AU - Kim, Jae Duck

AU - Kang, Jeong Won

AU - Lee, Youn Woo

N1 - Funding Information: This research was supported by Korea Environmental Industry & Technology Institute (Project No. 202-091-003). Partial support by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) (NRF-2009-C1AAA001-2009-0092935) is appreciated.

PY - 2010/1

Y1 - 2010/1

N2 - 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 353.15 K, 20 MPa, and CO2 flow rate of 40 g/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.

AB - 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 353.15 K, 20 MPa, and CO2 flow rate of 40 g/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.

KW - Extraction

KW - Supercritical carbon dioxide

KW - Waste cooking oil

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Purification of waste cooking oils via supercritical carbon dioxide extraction

Abstract

Keywords

ASJC Scopus subject areas

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