Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate
Ethyl ester from palm fatty acid distillate is of interest as biodiesel. However, the standard biodiesel quality free fatty acid (FFA) content is hard to achieve due to reversible reactions at low FFA content. The post-treatment of ethyl ester (1.5 wt% FFA) by esterification was investigated using...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Prince of Songkla University
2021-12-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | https://rdo.psu.ac.th/sjst/journal/43-6/34.pdf |
| _version_ | 1818208196977754112 |
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| author | Waritorn Kanjaikaew Chakrit Tongurai Sininart Chongkhong |
| author_facet | Waritorn Kanjaikaew Chakrit Tongurai Sininart Chongkhong |
| author_sort | Waritorn Kanjaikaew |
| collection | DOAJ |
| description | Ethyl ester from palm fatty acid distillate is of interest as biodiesel. However, the standard biodiesel quality free fatty
acid (FFA) content is hard to achieve due to reversible reactions at low FFA content. The post-treatment of ethyl ester (1.5 wt%
FFA) by esterification was investigated using homogeneous catalysts or heterogeneous catalysts, and comparing the short-chain
alcohols ethanol and methanol. An approximate equilibrium was attained more easily when using methanol or the heterogeneous
catalysts, and the goal of 0.25 wt% FFA content was achieved. First-order reaction kinetics were postulated, and three alternative
kinetic models were formulated for cases with large excess in some reactants. The simplest such model gave the forward rate
constant as 13.32 which was higher than that of the reverse reaction. The water generated during esterification contributed with
total initial water, which also was a key factor affecting the water balance.
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| first_indexed | 2024-12-12T04:40:59Z |
| format | Article |
| id | doaj.art-9a63665128a5461e8b4e348b5f811b71 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-12-12T04:40:59Z |
| publishDate | 2021-12-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-9a63665128a5461e8b4e348b5f811b712022-12-22T00:37:49ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952021-12-014361786179210.14456/sjst-psu.2021.234Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillateWaritorn Kanjaikaew0Chakrit Tongurai1Sininart Chongkhong2Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90112 ThailandDepartment of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90112 ThailandDepartment of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla, 90112 ThailandEthyl ester from palm fatty acid distillate is of interest as biodiesel. However, the standard biodiesel quality free fatty acid (FFA) content is hard to achieve due to reversible reactions at low FFA content. The post-treatment of ethyl ester (1.5 wt% FFA) by esterification was investigated using homogeneous catalysts or heterogeneous catalysts, and comparing the short-chain alcohols ethanol and methanol. An approximate equilibrium was attained more easily when using methanol or the heterogeneous catalysts, and the goal of 0.25 wt% FFA content was achieved. First-order reaction kinetics were postulated, and three alternative kinetic models were formulated for cases with large excess in some reactants. The simplest such model gave the forward rate constant as 13.32 which was higher than that of the reverse reaction. The water generated during esterification contributed with total initial water, which also was a key factor affecting the water balance. https://rdo.psu.ac.th/sjst/journal/43-6/34.pdfpost-treatmentpalm fatty acid distillateesterificationethyl esterkinetics |
| spellingShingle | Waritorn Kanjaikaew Chakrit Tongurai Sininart Chongkhong Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate Songklanakarin Journal of Science and Technology (SJST) post-treatment palm fatty acid distillate esterification ethyl ester kinetics |
| title | Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate |
| title_full | Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate |
| title_fullStr | Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate |
| title_full_unstemmed | Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate |
| title_short | Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate |
| title_sort | post treatment for high content of ethyl ester from esterification of palm fatty acid distillate |
| topic | post-treatment palm fatty acid distillate esterification ethyl ester kinetics |
| url | https://rdo.psu.ac.th/sjst/journal/43-6/34.pdf |
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