Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash
The use of low-cost or priceless feedstocks such as byproducts in biodiesel production results in a reduced overall process costs. The present paper reports the use of corn germs and corn cobs as byproducts from corn-based starch production in the biodiesel production by the methanolysis of the oil...
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University of Belgrade, Technical Faculty in Bor
2018-01-01
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| Series: | Reciklaža i Održivi Razvoj |
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| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/1820-7480/2018/1820-74801801053K.pdf |
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| author | Kostić Milan D. Tasić Marija B. Đalović Ivica G. Biberdžić Milan O. Mitrović Petar M. Stamenković Olivera S. Veljković Vlada B. |
| author_facet | Kostić Milan D. Tasić Marija B. Đalović Ivica G. Biberdžić Milan O. Mitrović Petar M. Stamenković Olivera S. Veljković Vlada B. |
| author_sort | Kostić Milan D. |
| collection | DOAJ |
| description | The use of low-cost or priceless feedstocks such as byproducts in biodiesel production results in a reduced overall process costs. The present paper reports the use of corn germs and corn cobs as byproducts from corn-based starch production in the biodiesel production by the methanolysis of the oil extracted from corn germs, catalyzed by the ash produced by combustion of corn cobs. The major aim was to optimize the methanol-to-oil molar ratio, catalyst loading, and reaction time in a batch stirred reactor with respect to the content of methyl ester fatty acids (FAME). The statistical modeling and optimization were carried out using a second-order polynomial (quadratic) model developed by the response surface methodology combined with a 33 factorial design with 3 central points. The FAME content was determined by a high-pressure liquid chromatography method. The analysis of variance showed that only the catalyst amount, the reaction time, the catalyst amount interaction with reaction time and all three quadratic terms were the significant model terms with the confidence level of 95 %. The optimum reaction conditions (the catalyst amounts of 19.8 %, the methanol-to-oil molar ratio of 9.4 mol/mol and the reaction time of 31 min) provided the FAME content of 98.1 %, which was in an excellent agreement with the predicted FAME content (98.4 %). Thus, both corn germs and corn cobs may be suitable feedstocks for biodiesel production. |
| first_indexed | 2024-12-17T13:06:52Z |
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| id | doaj.art-317c78d242904c2bb7242e780557d891 |
| institution | Directory Open Access Journal |
| issn | 1820-7480 2560-3132 |
| language | English |
| last_indexed | 2024-12-17T13:06:52Z |
| publishDate | 2018-01-01 |
| publisher | University of Belgrade, Technical Faculty in Bor |
| record_format | Article |
| series | Reciklaža i Održivi Razvoj |
| spelling | doaj.art-317c78d242904c2bb7242e780557d8912022-12-21T21:47:14ZengUniversity of Belgrade, Technical Faculty in BorReciklaža i Održivi Razvoj1820-74802560-31322018-01-0111153621820-74801801053KOptimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ashKostić Milan D.0Tasić Marija B.1Đalović Ivica G.2Biberdžić Milan O.3Mitrović Petar M.4Stamenković Olivera S.5Veljković Vlada B.6University of Nis, Faculty of Technology, LeskovacUniversity of Nis, Faculty of Technology, LeskovacInstitute of Field and Vegetable Crops, Novi SadUniversity of Pristina, Faculty of Agriculture, LesakInstitute of Field and Vegetable Crops, Novi SadUniversity of Nis, Faculty of Technology, LeskovacUniversity of Nis, Faculty of Technology, LeskovacThe use of low-cost or priceless feedstocks such as byproducts in biodiesel production results in a reduced overall process costs. The present paper reports the use of corn germs and corn cobs as byproducts from corn-based starch production in the biodiesel production by the methanolysis of the oil extracted from corn germs, catalyzed by the ash produced by combustion of corn cobs. The major aim was to optimize the methanol-to-oil molar ratio, catalyst loading, and reaction time in a batch stirred reactor with respect to the content of methyl ester fatty acids (FAME). The statistical modeling and optimization were carried out using a second-order polynomial (quadratic) model developed by the response surface methodology combined with a 33 factorial design with 3 central points. The FAME content was determined by a high-pressure liquid chromatography method. The analysis of variance showed that only the catalyst amount, the reaction time, the catalyst amount interaction with reaction time and all three quadratic terms were the significant model terms with the confidence level of 95 %. The optimum reaction conditions (the catalyst amounts of 19.8 %, the methanol-to-oil molar ratio of 9.4 mol/mol and the reaction time of 31 min) provided the FAME content of 98.1 %, which was in an excellent agreement with the predicted FAME content (98.4 %). Thus, both corn germs and corn cobs may be suitable feedstocks for biodiesel production.https://scindeks-clanci.ceon.rs/data/pdf/1820-7480/2018/1820-74801801053K.pdfBiodieselCorn cob ashCorn germsOptimizationResponse surface methodologyTransesterification |
| spellingShingle | Kostić Milan D. Tasić Marija B. Đalović Ivica G. Biberdžić Milan O. Mitrović Petar M. Stamenković Olivera S. Veljković Vlada B. Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash Reciklaža i Održivi Razvoj Biodiesel Corn cob ash Corn germs Optimization Response surface methodology Transesterification |
| title | Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash |
| title_full | Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash |
| title_fullStr | Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash |
| title_full_unstemmed | Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash |
| title_short | Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash |
| title_sort | optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash |
| topic | Biodiesel Corn cob ash Corn germs Optimization Response surface methodology Transesterification |
| url | https://scindeks-clanci.ceon.rs/data/pdf/1820-7480/2018/1820-74801801053K.pdf |
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