The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production
Dolomite as a heterogeneous catalyst can be used in biodiesel synthesis. Process material costs can be reduced by regenerating and reusing the catalyst. Two methods of regeneration of dolomite were studied: (1) washing for 30 min with methanol, filtration, and washing for 30 min with hexane and (2)...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-02-01
|
| Series: | Catalysts |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4344/14/2/139 |
| _version_ | 1797298601440837632 |
|---|---|
| author | Rasa Šlinkšienė Rasa Paleckienė Ieva Gaidė Violeta Makarevičienė Eglė Sendžikienė |
| author_facet | Rasa Šlinkšienė Rasa Paleckienė Ieva Gaidė Violeta Makarevičienė Eglė Sendžikienė |
| author_sort | Rasa Šlinkšienė |
| collection | DOAJ |
| description | Dolomite as a heterogeneous catalyst can be used in biodiesel synthesis. Process material costs can be reduced by regenerating and reusing the catalyst. Two methods of regeneration of dolomite were studied: (1) washing for 30 min with methanol, filtration, and washing for 30 min with hexane and (2) calcination at high temperature. Catalytic efficiency and catalyst changes after 1–6 cycles were evaluated. X-ray, FTIR, and SEM studies were performed. Calcination has been found to be a more effective method of catalyst regeneration than washing with solvents. The catalytic effectiveness of dolomite only slightly decreased over six application cycles. The results of the instrumental analysis showed that the structure and composition of the dolomite do not change during calcination after three cycles, while obvious changes in the structure of dolomite during catalyst washing were observed. |
| first_indexed | 2024-03-07T22:38:24Z |
| format | Article |
| id | doaj.art-21829d38c3924daca0c5426ae682cd95 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-07T22:38:24Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-21829d38c3924daca0c5426ae682cd952024-02-23T15:11:33ZengMDPI AGCatalysts2073-43442024-02-0114213910.3390/catal14020139The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel ProductionRasa Šlinkšienė0Rasa Paleckienė1Ieva Gaidė2Violeta Makarevičienė3Eglė Sendžikienė4Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu Str.19, LT-50254 Kaunas, LithuaniaFaculty of Chemical Technology, Kaunas University of Technology, Radvilenu Str.19, LT-50254 Kaunas, LithuaniaAgriculture Academy, Vytautas Magnus University, K. Donelaicio Str. 58, LT-44248 Kaunas, LithuaniaAgriculture Academy, Vytautas Magnus University, K. Donelaicio Str. 58, LT-44248 Kaunas, LithuaniaAgriculture Academy, Vytautas Magnus University, K. Donelaicio Str. 58, LT-44248 Kaunas, LithuaniaDolomite as a heterogeneous catalyst can be used in biodiesel synthesis. Process material costs can be reduced by regenerating and reusing the catalyst. Two methods of regeneration of dolomite were studied: (1) washing for 30 min with methanol, filtration, and washing for 30 min with hexane and (2) calcination at high temperature. Catalytic efficiency and catalyst changes after 1–6 cycles were evaluated. X-ray, FTIR, and SEM studies were performed. Calcination has been found to be a more effective method of catalyst regeneration than washing with solvents. The catalytic effectiveness of dolomite only slightly decreased over six application cycles. The results of the instrumental analysis showed that the structure and composition of the dolomite do not change during calcination after three cycles, while obvious changes in the structure of dolomite during catalyst washing were observed.https://www.mdpi.com/2073-4344/14/2/139biodieseldolomiteregeneration |
| spellingShingle | Rasa Šlinkšienė Rasa Paleckienė Ieva Gaidė Violeta Makarevičienė Eglė Sendžikienė The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production Catalysts biodiesel dolomite regeneration |
| title | The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production |
| title_full | The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production |
| title_fullStr | The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production |
| title_full_unstemmed | The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production |
| title_short | The Regeneration of Dolomite as a Heterogeneous Catalyst for Biodiesel Production |
| title_sort | regeneration of dolomite as a heterogeneous catalyst for biodiesel production |
| topic | biodiesel dolomite regeneration |
| url | https://www.mdpi.com/2073-4344/14/2/139 |
| work_keys_str_mv | AT rasaslinksiene theregenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT rasapaleckiene theregenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT ievagaide theregenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT violetamakareviciene theregenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT eglesendzikiene theregenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT rasaslinksiene regenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT rasapaleckiene regenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT ievagaide regenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT violetamakareviciene regenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction AT eglesendzikiene regenerationofdolomiteasaheterogeneouscatalystforbiodieselproduction |