Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts
Solid base CaO–CeO2 mixed oxide catalysts have been synthesized via wet impregnation method and characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area analysis, temperature-programmed desorption of CO2 (TPD-CO2) and scanning electron microscopy (SEM). The catalytic activ...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/36655/1/Biodiesel%20production%20via%20transesterification%20of%20palm%20oil%20by%20using%20CaO%E2%80%93CeO2%20mixed%20oxide%20catalysts.pdf |
| _version_ | 1796972956505604096 |
|---|---|
| author | Wong, Yong Chen Tan, Yen Ping Yap, Taufiq Yun Hin Ramli, Irmawati Tee, Han Song |
| author_facet | Wong, Yong Chen Tan, Yen Ping Yap, Taufiq Yun Hin Ramli, Irmawati Tee, Han Song |
| author_sort | Wong, Yong Chen |
| collection | UPM |
| description | Solid base CaO–CeO2 mixed oxide catalysts have been synthesized via wet impregnation method and characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area analysis, temperature-programmed desorption of CO2 (TPD-CO2) and scanning electron microscopy (SEM). The catalytic activity was determined by transesterification of palm oil. Optimum biodiesel yield, 95%, was achieved by 50Ca–Ce catalyst under the reaction conditions of 5 wt.% of catalyst, methanol to oil molar ratio of 12:1, reaction temperature of 65 °C and reaction time of 4 h. The high catalytic activity (95%) of 50Ca–Ce catalyst may be due to strong basicity and high BET surface area, which indicate more number of active sites on the catalyst surface for transesterification process. Besides, 50Ca–Ce catalyst showed better reusability than the bulk CaO where it can be reused up to 6 times without a significant loss of catalytic activity (>80%). The lixiviation of CaO active phase was greatly reduced with the presence of strong synergic interaction between CaO and CeO2. Deactivation of the catalyst was mainly due to the leaching of CaO active phase into the methanolic solution and pore-filling by fatty acid or glycerol. |
| first_indexed | 2024-03-06T08:35:58Z |
| format | Article |
| id | upm.eprints-36655 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:35:58Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-366552020-07-06T03:12:15Z http://psasir.upm.edu.my/id/eprint/36655/ Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts Wong, Yong Chen Tan, Yen Ping Yap, Taufiq Yun Hin Ramli, Irmawati Tee, Han Song Solid base CaO–CeO2 mixed oxide catalysts have been synthesized via wet impregnation method and characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area analysis, temperature-programmed desorption of CO2 (TPD-CO2) and scanning electron microscopy (SEM). The catalytic activity was determined by transesterification of palm oil. Optimum biodiesel yield, 95%, was achieved by 50Ca–Ce catalyst under the reaction conditions of 5 wt.% of catalyst, methanol to oil molar ratio of 12:1, reaction temperature of 65 °C and reaction time of 4 h. The high catalytic activity (95%) of 50Ca–Ce catalyst may be due to strong basicity and high BET surface area, which indicate more number of active sites on the catalyst surface for transesterification process. Besides, 50Ca–Ce catalyst showed better reusability than the bulk CaO where it can be reused up to 6 times without a significant loss of catalytic activity (>80%). The lixiviation of CaO active phase was greatly reduced with the presence of strong synergic interaction between CaO and CeO2. Deactivation of the catalyst was mainly due to the leaching of CaO active phase into the methanolic solution and pore-filling by fatty acid or glycerol. Elsevier 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/36655/1/Biodiesel%20production%20via%20transesterification%20of%20palm%20oil%20by%20using%20CaO%E2%80%93CeO2%20mixed%20oxide%20catalysts.pdf Wong, Yong Chen and Tan, Yen Ping and Yap, Taufiq Yun Hin and Ramli, Irmawati and Tee, Han Song (2015) Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts. Fuel, 162. pp. 288-293. ISSN 0016-2361; ESSN: 1873-7153 https://www.sciencedirect.com/science/article/pii/S0016236115009023#! 10.1016/j.fuel.2015.09.012 |
| spellingShingle | Wong, Yong Chen Tan, Yen Ping Yap, Taufiq Yun Hin Ramli, Irmawati Tee, Han Song Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts |
| title | Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts |
| title_full | Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts |
| title_fullStr | Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts |
| title_full_unstemmed | Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts |
| title_short | Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts |
| title_sort | biodiesel production via transesterification of palm oil by using cao ceo2 mixed oxide catalysts |
| url | http://psasir.upm.edu.my/id/eprint/36655/1/Biodiesel%20production%20via%20transesterification%20of%20palm%20oil%20by%20using%20CaO%E2%80%93CeO2%20mixed%20oxide%20catalysts.pdf |
| work_keys_str_mv | AT wongyongchen biodieselproductionviatransesterificationofpalmoilbyusingcaoceo2mixedoxidecatalysts AT tanyenping biodieselproductionviatransesterificationofpalmoilbyusingcaoceo2mixedoxidecatalysts AT yaptaufiqyunhin biodieselproductionviatransesterificationofpalmoilbyusingcaoceo2mixedoxidecatalysts AT ramliirmawati biodieselproductionviatransesterificationofpalmoilbyusingcaoceo2mixedoxidecatalysts AT teehansong biodieselproductionviatransesterificationofpalmoilbyusingcaoceo2mixedoxidecatalysts |