LAPSE:2019.1601
Published Article
LAPSE:2019.1601
Oil Recovery from Palm Kernel Meal Using Subcritical Water Extraction in a Stirred Tank Reactor
Johnnys Bustillo Maury, Andrés Aldana Rico, Cindy García Pinto, Ingrid Hernández Medina, Juan Urueta Urueta, Jerry W. King, Antonio Bula Silvera
December 16, 2019
Palm kernel meal (PKM) is one of the main byproducts of the oil palm industry. PKM can be obtained as the result of solvent or mechanical extraction of palm kernel oil; in both cases, meal has a remaining oil content that could be recovered. In this work, PKM coming from a mechanical pressing extraction system with an initial oil content between 7 to 8% (wt.) was treated with subcritical water in a batch stirred reactor. To find the proper operational conditions, a three-step experimental process was performed. Extraction temperature, reaction time, particle size and alkaline catalyst usage were selected as process factors. After subcritical extraction, the system was cooled down and depressurized; then oil phase was separated by centrifugation. After extraction, meal was oven-dried at 80 °C. A maximum recovery of 0.034 kg-oil/kg-meal was obtained at 423 K, 720 s and particles smaller than 0.001 m. The experimental procedure showed consistent extraction yields of 40% without modifying the quality of the obtained oil.
Keywords
clean separation, oil recovery, palm kernel meal, subcritical water extraction
Suggested Citation
Bustillo Maury J, Aldana Rico A, García Pinto C, Hernández Medina I, Urueta Urueta J, King JW, Bula Silvera A. Oil Recovery from Palm Kernel Meal Using Subcritical Water Extraction in a Stirred Tank Reactor. (2019). LAPSE:2019.1601
Author Affiliations
Bustillo Maury J: Departamento de Ingeniería Mecánica, Universidad del Norte, Km 5 vía Puerto Colombia, Barranquilla C.P. 080001, Colombia [ORCID]
Aldana Rico A: Departamento de Ingeniería Mecánica, Universidad del Norte, Km 5 vía Puerto Colombia, Barranquilla C.P. 080001, Colombia
García Pinto C: Departamento de Ingeniería Mecánica, Universidad del Norte, Km 5 vía Puerto Colombia, Barranquilla C.P. 080001, Colombia
Hernández Medina I: Departamento de Ingeniería Industrial, Universidad del Norte, Km 5 vía Puerto Colombia, Barranquilla C.P. 080001, Colombia
Urueta Urueta J: Departamento de Innovación, Aceites S.A., Santa Marta C.P. 470001, Colombia
King JW: Critical Fluid Symposia, Fayetteville, AR 72071, USA
Bula Silvera A: Departamento de Ingeniería Mecánica, Universidad del Norte, Km 5 vía Puerto Colombia, Barranquilla C.P. 080001, Colombia [ORCID]
Journal Name
Processes
Volume
7
Issue
11
Article Number
E797
Year
2019
Publication Date
2019-11-02
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr7110797, Publication Type: Journal Article
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LAPSE:2019.1601
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doi:10.3390/pr7110797
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Dec 16, 2019
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Dec 16, 2019
 
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Original Submitter
Calvin Tsay
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