Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process
A series of Mg-Zr composite oxide catalysts prepared by the hydrothermal process were used for the transesterification of glycerol (GL) with dimethyl carbonate (DMC) to produce glycerol carbonate (GC). The effects of the preparation method (co-precipitation, hydrothermal process) and Mg/Zr ratio on...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-06-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/12/12/1972 |
| _version_ | 1797483859647922176 |
|---|---|
| author | Yihao Li Hepan Zhao Wei Xue Fang Li Zhimiao Wang |
| author_facet | Yihao Li Hepan Zhao Wei Xue Fang Li Zhimiao Wang |
| author_sort | Yihao Li |
| collection | DOAJ |
| description | A series of Mg-Zr composite oxide catalysts prepared by the hydrothermal process were used for the transesterification of glycerol (GL) with dimethyl carbonate (DMC) to produce glycerol carbonate (GC). The effects of the preparation method (co-precipitation, hydrothermal process) and Mg/Zr ratio on the catalytic performance were systematically investigated, and the deactivation of the catalyst was also explored. The Mg-Zr composite oxide catalysts were characterized by XRD, TEM, TPD, N<sub>2</sub> adsorption-desorption, and XPS. The characterization results showed that compared with the co-precipitation process, the catalyst prepared by the hydrothermal process has a larger specific surface area, smaller grain size, and higher dispersion. Mg1Zr2-HT catalyst calcined at 600 °C in a nitrogen atmosphere exhibited the best catalytic performance. Under the conditions of reaction time of 90 min, reaction temperature of 90 °C, catalyst dosage of 3 wt% of GL, and GL/DMC molar ratio of 1/5, the GL conversion was 99% with 96.1% GC selectivity, and the yield of GC was 74.5% when it was reused for the fourth time. |
| first_indexed | 2024-03-09T22:53:09Z |
| format | Article |
| id | doaj.art-4db2613962c84f93a29e50d1b315ce3c |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T22:53:09Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4db2613962c84f93a29e50d1b315ce3c2023-11-23T18:15:21ZengMDPI AGNanomaterials2079-49912022-06-011212197210.3390/nano12121972Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal ProcessYihao Li0Hepan Zhao1Wei Xue2Fang Li3Zhimiao Wang4Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, ChinaKey Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, ChinaKey Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, ChinaKey Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, ChinaKey Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, ChinaA series of Mg-Zr composite oxide catalysts prepared by the hydrothermal process were used for the transesterification of glycerol (GL) with dimethyl carbonate (DMC) to produce glycerol carbonate (GC). The effects of the preparation method (co-precipitation, hydrothermal process) and Mg/Zr ratio on the catalytic performance were systematically investigated, and the deactivation of the catalyst was also explored. The Mg-Zr composite oxide catalysts were characterized by XRD, TEM, TPD, N<sub>2</sub> adsorption-desorption, and XPS. The characterization results showed that compared with the co-precipitation process, the catalyst prepared by the hydrothermal process has a larger specific surface area, smaller grain size, and higher dispersion. Mg1Zr2-HT catalyst calcined at 600 °C in a nitrogen atmosphere exhibited the best catalytic performance. Under the conditions of reaction time of 90 min, reaction temperature of 90 °C, catalyst dosage of 3 wt% of GL, and GL/DMC molar ratio of 1/5, the GL conversion was 99% with 96.1% GC selectivity, and the yield of GC was 74.5% when it was reused for the fourth time.https://www.mdpi.com/2079-4991/12/12/1972glycerol carbonatetransesterificationhydrothermal processMg-Zr oxides |
| spellingShingle | Yihao Li Hepan Zhao Wei Xue Fang Li Zhimiao Wang Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process Nanomaterials glycerol carbonate transesterification hydrothermal process Mg-Zr oxides |
| title | Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process |
| title_full | Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process |
| title_fullStr | Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process |
| title_full_unstemmed | Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process |
| title_short | Transesterification of Glycerol to Glycerol Carbonate over Mg-Zr Composite Oxide Prepared by Hydrothermal Process |
| title_sort | transesterification of glycerol to glycerol carbonate over mg zr composite oxide prepared by hydrothermal process |
| topic | glycerol carbonate transesterification hydrothermal process Mg-Zr oxides |
| url | https://www.mdpi.com/2079-4991/12/12/1972 |
| work_keys_str_mv | AT yihaoli transesterificationofglyceroltoglycerolcarbonateovermgzrcompositeoxidepreparedbyhydrothermalprocess AT hepanzhao transesterificationofglyceroltoglycerolcarbonateovermgzrcompositeoxidepreparedbyhydrothermalprocess AT weixue transesterificationofglyceroltoglycerolcarbonateovermgzrcompositeoxidepreparedbyhydrothermalprocess AT fangli transesterificationofglyceroltoglycerolcarbonateovermgzrcompositeoxidepreparedbyhydrothermalprocess AT zhimiaowang transesterificationofglyceroltoglycerolcarbonateovermgzrcompositeoxidepreparedbyhydrothermalprocess |