Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica
In this study, CaO/SiO2 composites were prepared from rice husk silica (RH-SiO2) and limestone from a local company. The composites with different mass ratios of CaO to SiO2 (1:1, 1:2, 1:3, 1:5, and 1:10) were synthesized using the sol-gel technique and characterized using XRF, XRD, and SEM. The com...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Pandawa Institute
2023-07-01
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| Series: | Journal of Multidisciplinary Applied Natural Science |
| Subjects: | |
| Online Access: | https://journal.pandawainstitute.com/index.php/jmans/article/view/185 |
| _version_ | 1797356280178802688 |
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| author | Sri Elfina Kamisah Delilawati Pandiangan Novesar Jamarun Fejri Subriadi Hafnimardiyanti Hafnimardiyanti Roswita Roswita |
| author_facet | Sri Elfina Kamisah Delilawati Pandiangan Novesar Jamarun Fejri Subriadi Hafnimardiyanti Hafnimardiyanti Roswita Roswita |
| author_sort | Sri Elfina |
| collection | DOAJ |
| description | In this study, CaO/SiO2 composites were prepared from rice husk silica (RH-SiO2) and limestone from a local company. The composites with different mass ratios of CaO to SiO2 (1:1, 1:2, 1:3, 1:5, and 1:10) were synthesized using the sol-gel technique and characterized using XRF, XRD, and SEM. The composites were then used as catalysts for the transesterification of palm oil, with the main purpose to investigate the effect of catalyst compositions on the percentage of conversion of the oil. The results of XRD and SEM confirm the existence of RH-SiO2 as an amorphous material, and CaO as crystalline material, while the composites are a mixture of amorphous and crystalline phases. The catalysts were then used in transesterification experiments and the percentage of oil conversion was calculated. To confirm the successful conversion of palm oil into fatty acid methyl esters, the products of the reactions were analyzed using GC-MS. The experimental results demonstrated that the composites prepared exhibit catalytic activity, with the highest conversion (60%) achieved using the catalyst with the CaO to SiO2 ratio of 1:3. |
| first_indexed | 2024-03-08T14:24:20Z |
| format | Article |
| id | doaj.art-95ee27c0d1414d71a3d7874cd2859f09 |
| institution | Directory Open Access Journal |
| issn | 2774-3047 |
| language | English |
| last_indexed | 2024-03-08T14:24:20Z |
| publishDate | 2023-07-01 |
| publisher | Pandawa Institute |
| record_format | Article |
| series | Journal of Multidisciplinary Applied Natural Science |
| spelling | doaj.art-95ee27c0d1414d71a3d7874cd2859f092024-01-13T10:55:36ZengPandawa InstituteJournal of Multidisciplinary Applied Natural Science2774-30472023-07-0141495710.47352/jmans.2774-3047.185186Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk SilicaSri Elfina0https://orcid.org/0009-0003-0788-3010Kamisah Delilawati Pandiangan1https://orcid.org/0000-0001-6347-2361Novesar Jamarun2https://orcid.org/0000-0001-8284-145XFejri Subriadi3https://orcid.org/0009-0005-1485-3252Hafnimardiyanti Hafnimardiyanti4https://orcid.org/0009-0000-2706-3296Roswita Roswita5https://orcid.org/0009-0005-5905-7946Chemical Analysis Study Program, Politeknik ATI Padang, Padang-25771 (Indonesia)Department Chemistry, Lampung University, Bandar Lampung-35145 (Indonesia)Department Chemistry, Andalas University, Padang-26163 (Indonesia)Chemical Analysis Study Program, Politeknik ATI Padang, Padang-25771 (Indonesia)Chemical Analysis Study Program, Politeknik ATI Padang, Padang-25771 (Indonesia)Chemical Analysis Study Program, Politeknik ATI Padang, Padang-25771 (Indonesia)In this study, CaO/SiO2 composites were prepared from rice husk silica (RH-SiO2) and limestone from a local company. The composites with different mass ratios of CaO to SiO2 (1:1, 1:2, 1:3, 1:5, and 1:10) were synthesized using the sol-gel technique and characterized using XRF, XRD, and SEM. The composites were then used as catalysts for the transesterification of palm oil, with the main purpose to investigate the effect of catalyst compositions on the percentage of conversion of the oil. The results of XRD and SEM confirm the existence of RH-SiO2 as an amorphous material, and CaO as crystalline material, while the composites are a mixture of amorphous and crystalline phases. The catalysts were then used in transesterification experiments and the percentage of oil conversion was calculated. To confirm the successful conversion of palm oil into fatty acid methyl esters, the products of the reactions were analyzed using GC-MS. The experimental results demonstrated that the composites prepared exhibit catalytic activity, with the highest conversion (60%) achieved using the catalyst with the CaO to SiO2 ratio of 1:3.https://journal.pandawainstitute.com/index.php/jmans/article/view/185compositecatalystlimestonerice husk silicapalm oilbiodiesel |
| spellingShingle | Sri Elfina Kamisah Delilawati Pandiangan Novesar Jamarun Fejri Subriadi Hafnimardiyanti Hafnimardiyanti Roswita Roswita Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica Journal of Multidisciplinary Applied Natural Science composite catalyst limestone rice husk silica palm oil biodiesel |
| title | Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica |
| title_full | Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica |
| title_fullStr | Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica |
| title_full_unstemmed | Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica |
| title_short | Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica |
| title_sort | transesterification of palm oil catalyzed by cao sio2 prepared from limestone and rice husk silica |
| topic | composite catalyst limestone rice husk silica palm oil biodiesel |
| url | https://journal.pandawainstitute.com/index.php/jmans/article/view/185 |
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