Mass Transfer of Palm Kernel Oil under Supercritical Conditions
The purpose of the study was to determine the amount of Palm Kernel Oil (PKO) extracted from a packed bed of palm kernels in a supercritical fluid extractor using supercritical carbon dioxide (SC-CO2) as an environmental friendly solvent. Further, the study sought to ascertain the values of the overall mass transfer coefficient (K) of PKO evaluation through a mass transfer model, at constant temperature of 50 °C, 60 °C, and 70 °C and pressures range from 27.6 MPa, 34.5 MPa, 41.4 MPa and 48.3 MPa respectively. Finally, the study also seeks to demonstrate the application of the overall mass transfer coefficient values in relation to temperature and pressure. The overall mass transfer coefficient was found to be dependent pressure at each constant temperature of 50 °C, 60 °C and 70 °C. The overall mass transfer coefficient for PKO in a packed bed of palm kernels was found to be in the range of 1.21X 10-4 m min-1 to 1.72 X 10-4 m min-1 for a constant temperature of 50 °C and in the range of 2.02 X 10-4 m min-1 to 2.43 X 10-4 m min-1 for a constant temperature of 60 °C. Similar increasing trend of the overall mass transfer coefficient from 1.77 X 10-4 m min-1 to 3.64 X 10-4 m min-1 was also observed at constant temperature of 70 °C within the same pressure range from 27.6 MPa to 48.3 MPa.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1075495Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1409
 Sreedhara, N., C.Arumughan and C.S.Narayanan, Dehulling of Palm Kernel of Oil Palm to Obtain Superior - Grade Palm Kernel Flour and Oil, Chem Soc. (1992)., 69, 10, 1015-1018.
 Zaida Zainal and Mohd Suria Affandi Yusoff, Enzymatic Interesterification of Palm Stearin and Palm Kernel Olein, J.Am.Oil.Soc. (1999), 76, 9, 1003-1008.
 Tang, T.S., and Teoh, P.K., Palm Kernel Oil Extraction-The Malaysian Experience. JAOCS (1985), 62 (2), 254-258.
 Treybal R.E., Mass Transfer Operations, third ed. (Mc.Graw Hill, 1981).
 Udaya Sankar, K., and Manohar, B., Supercritical Fluid Carbon Dioxide Technology for Extraction of Spices and other High Value Bio-active Compounds, Supercritical Fluids Processing and Biomaterials (1994), 155-166.
 Brunner, G., Mass Transfer from Solid Material in Gas Extraction. Phys. Chem. (1994), 88, 887.
 Lee, H., Chung, B.H., and Park, Y.H., Concentration of Tocopherols from Soybean Sludge by Supercritical Carbon Dioxide. JAOCS (1991), 8, (8), 571-573.
 List, G.R., King J.W., Johnson, J.H., Warner, K., Mounts, T.L., Supercritical CO2 Degumming and Physical Refining of Soybean Oil," J.Am.Oil.Chem.Soc. (1993), 70, 473.
 Goncalves, M., Vasconcelos, M.P., GomesdeAzevedo, E.J.S., Chaves H.J., das Neves, Nunes M., da Ponte, Application of Supercritical Fluid Extraction to the Acidification of Olive Oils, J.Am.Oil Chem. Soc.(1991), 68, 474.
 Friedrich, J.P., Supercritical CO2 Extraction of Lipids from Lipidscontaining Materials. U.S. Patent 4 (1984), 466,923.
 Majewski, W., P.Mengal, M.Perrut, J.P.Ecalard, Supercritical Fluid Fractionation of Butter Oil, Proceedings: Supercritical Fluid Processing of Biomaterials: Basics of Process Design and Applications Symposium, Toronto, 123 (1991).
 Lee B-C, Kim, J.D., Hwang, K-H and Lee, Y.Y., Extraction of oil from Evening Primrose seed with Supercritical Carbon Dioxide, Supercritical Fluid Processing of Food and Biomaterials, Glasgow, N.Z. (1994), 168- 180.
 PORIM Test Methods, (1995). Palm Oil Research Institute of Malaysia