Oil removal from spent bleaching earth of vegetable oil refinery plant using supercritical carbon dioxide

Siti Machmudah; Nabil Apta Maulana; Andhika Shafian Maindo Norman; Valencia Marchilia Nyoto; Irji Amrullah; Wahyudiono; Sugeng Winardi; I. Gede Wenten; Motonobu Goto

doi:10.1016/j.heliyon.2022.e10826

Oil removal from spent bleaching earth of vegetable oil refinery plant using supercritical carbon dioxide

Siti Machmudah^*, Nabil Apta Maulana, Andhika Shafian Maindo Norman, Valencia Marchilia Nyoto, Irji Amrullah, Wahyudiono, Sugeng Winardi, I. Gede Wenten, Motonobu Goto

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

The oil in the spent bleaching earth (SBE) matrix was successfully removed by applying the supercritical carbon dioxide (SCCO₂) extraction technique in a semi-continuous flow–type system. The SCCO₂ extraction process was conducted at 40–80 °C and 20–30 MPa with extraction time of ∼180 min. The color of SBE matrix changes from the dark to dark-pale color after the SCCO₂ extraction treatment exhibiting the substances including oil in the SBE matrix were successfully removed. The extracted oil yield was around 95% when the SCCO₂ extraction process was performed at 40 °C and 30 MPa with 10% ethanol addition as a co–solvent. The GC analysis showed that the prominent fatty acid constituents in the extracted oil are palmitic and oleic acids, furthermore it can be fed as a feedstock to produce biodiesel fuel. Next, it can be proposed that SCCO₂ extraction system is a viable way to extract oil from the SBE matrix.

Original language	English
Article number	e10826
Journal	Heliyon
Volume	8
Issue number	10
DOIs	https://doi.org/10.1016/j.heliyon.2022.e10826
Publication status	Published - Oct 2022

Keywords

Extraction
Oil recovery
Spent bleaching earth
Supercritical CO
Vegetable oil

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10.1016/j.heliyon.2022.e10826

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title = "Oil removal from spent bleaching earth of vegetable oil refinery plant using supercritical carbon dioxide",

abstract = "The oil in the spent bleaching earth (SBE) matrix was successfully removed by applying the supercritical carbon dioxide (SCCO2) extraction technique in a semi-continuous flow–type system. The SCCO2 extraction process was conducted at 40–80 °C and 20–30 MPa with extraction time of ∼180 min. The color of SBE matrix changes from the dark to dark-pale color after the SCCO2 extraction treatment exhibiting the substances including oil in the SBE matrix were successfully removed. The extracted oil yield was around 95% when the SCCO2 extraction process was performed at 40 °C and 30 MPa with 10% ethanol addition as a co–solvent. The GC analysis showed that the prominent fatty acid constituents in the extracted oil are palmitic and oleic acids, furthermore it can be fed as a feedstock to produce biodiesel fuel. Next, it can be proposed that SCCO2 extraction system is a viable way to extract oil from the SBE matrix.",

keywords = "Extraction, Oil recovery, Spent bleaching earth, Supercritical CO, Vegetable oil",

author = "Siti Machmudah and Maulana, {Nabil Apta} and Norman, {Andhika Shafian Maindo} and Nyoto, {Valencia Marchilia} and Irji Amrullah and Wahyudiono and Sugeng Winardi and Wenten, {I. Gede} and Motonobu Goto",

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year = "2022",

month = oct,

doi = "10.1016/j.heliyon.2022.e10826",

language = "English",

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AU - Machmudah, Siti

AU - Maulana, Nabil Apta

AU - Norman, Andhika Shafian Maindo

AU - Nyoto, Valencia Marchilia

AU - Amrullah, Irji

AU - Wahyudiono,

AU - Winardi, Sugeng

AU - Wenten, I. Gede

AU - Goto, Motonobu

PY - 2022/10

Y1 - 2022/10

N2 - The oil in the spent bleaching earth (SBE) matrix was successfully removed by applying the supercritical carbon dioxide (SCCO2) extraction technique in a semi-continuous flow–type system. The SCCO2 extraction process was conducted at 40–80 °C and 20–30 MPa with extraction time of ∼180 min. The color of SBE matrix changes from the dark to dark-pale color after the SCCO2 extraction treatment exhibiting the substances including oil in the SBE matrix were successfully removed. The extracted oil yield was around 95% when the SCCO2 extraction process was performed at 40 °C and 30 MPa with 10% ethanol addition as a co–solvent. The GC analysis showed that the prominent fatty acid constituents in the extracted oil are palmitic and oleic acids, furthermore it can be fed as a feedstock to produce biodiesel fuel. Next, it can be proposed that SCCO2 extraction system is a viable way to extract oil from the SBE matrix.

AB - The oil in the spent bleaching earth (SBE) matrix was successfully removed by applying the supercritical carbon dioxide (SCCO2) extraction technique in a semi-continuous flow–type system. The SCCO2 extraction process was conducted at 40–80 °C and 20–30 MPa with extraction time of ∼180 min. The color of SBE matrix changes from the dark to dark-pale color after the SCCO2 extraction treatment exhibiting the substances including oil in the SBE matrix were successfully removed. The extracted oil yield was around 95% when the SCCO2 extraction process was performed at 40 °C and 30 MPa with 10% ethanol addition as a co–solvent. The GC analysis showed that the prominent fatty acid constituents in the extracted oil are palmitic and oleic acids, furthermore it can be fed as a feedstock to produce biodiesel fuel. Next, it can be proposed that SCCO2 extraction system is a viable way to extract oil from the SBE matrix.

KW - Extraction

KW - Oil recovery

KW - Spent bleaching earth

KW - Supercritical CO

KW - Vegetable oil

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DO - 10.1016/j.heliyon.2022.e10826

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SN - 2405-8440

VL - 8

JO - Heliyon

JF - Heliyon

IS - 10

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ER -

Oil removal from spent bleaching earth of vegetable oil refinery plant using supercritical carbon dioxide

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Keywords

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