Transesterification of palm oil using supercritical methanol with co-solvent HCFC-141b |
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| Authors: | Seung Tae Hong Jin-Woo Kim Won-Ho Jang Jong Sung Lim Hyung Sang Park Ki-Pung Yoo Carolin Apfel Wolfgang Arlt |
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| Institution: | (1) Department of Chemical and Biomolecular Engineering, Sogang University, C.P.O. Box 1142, Seoul, 100-611, South Korea;(2) Department of Separation Science and Technology, Friedrich–Alexander University, Egerlandstr. 3, 91058 Erlangen-Nuremberg, Germany |
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| Abstract: | The transesterification of palm oil in supercritical methanol has been investigated without using any catalyst. HCFC-141b
was used as co-solvent to reduce the molar ratio of methanol to palm oil under the milder conditions. The reaction was carried
out in a flow-type tubular reactor. The residence time was fixed at 40 min. When the molar ratio of methanol to palm oil was
set to 20:1 at 325 °C and 35 MPa, the optimum molar ratio of methanol to co-solvent was found to be 20:1. Addition of HCFC-141b
increased FAME production even at the lower molar ratio of methanol to palm oil. In addition, a similar FAME content was obtained
under the milder conditions (5 MPa lower pressure) compared with conditions without co-solvent at higher pressure. The role
of HCFC-141b in the transesterification reaction under supercritical conditions was investigated. |
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| Keywords: | Transesterification Supercritical methanol Co-solvent Biodiesel FAME HCFC-141b |
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