Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound
The effect of support on the formation of rhenium carbide in the hydrodeoxygenation (HDO) of guaiacol as a lignin-derived compound was evaluated. Catalysts were prepared by incipient wetness impregnation, carburized at 650 °C under a mixture 25/75 of ethylene/hydrogen, and characterized by XRD, N<...
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MDPI AG
2022-10-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/10/1229 |
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| author | Elodie Blanco Ana Belén Dongil Isaac Tyrone Ghampson Néstor Escalona |
| author_facet | Elodie Blanco Ana Belén Dongil Isaac Tyrone Ghampson Néstor Escalona |
| author_sort | Elodie Blanco |
| collection | DOAJ |
| description | The effect of support on the formation of rhenium carbide in the hydrodeoxygenation (HDO) of guaiacol as a lignin-derived compound was evaluated. Catalysts were prepared by incipient wetness impregnation, carburized at 650 °C under a mixture 25/75 of ethylene/hydrogen, and characterized by XRD, N<sub>2</sub>-physisorption, TPR, TPD of NH<sub>3</sub> or isopropylamine (IPA), and XPS. The results have demonstrated that the support choice affects the carburization of rhenium. Indeed, over non-acidic support (e.g., SiO<sub>2</sub>), limited carburization of the metal was observed, while over ZrO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub>, carburization of rhenium occurred, and different carbidic species were obtained depending on the surface and chemical identity of the support. The rhenium carbide species obtained over ZrO<sub>2</sub> was the most active and selective toward benzene (22% at 98% of conversion). |
| first_indexed | 2024-03-09T20:29:54Z |
| format | Article |
| id | doaj.art-351d0e5c30004fefb3e9c400b7c02064 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T20:29:54Z |
| publishDate | 2022-10-01 |
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| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-351d0e5c30004fefb3e9c400b7c020642023-11-23T23:25:48ZengMDPI AGCatalysts2073-43442022-10-011210122910.3390/catal12101229Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model CompoundElodie Blanco0Ana Belén Dongil1Isaac Tyrone Ghampson2Néstor Escalona3Departamento de Ingeniería y Gestión de la Construcción, Pontificia Universidad Católica de Chile, Santiago 7820436, ChileInstituto de Catálisis y Petroleoquímica, CSIC (Consejo Superior de Investigaciones Científicas), Cantoblanco, 28049 Madrid, SpainDepartment of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, JapanDepartamento de Ingeniería Química y Bioprocesos, Pontificia Universidad Católica de Chile, Santiago 7820436, ChileThe effect of support on the formation of rhenium carbide in the hydrodeoxygenation (HDO) of guaiacol as a lignin-derived compound was evaluated. Catalysts were prepared by incipient wetness impregnation, carburized at 650 °C under a mixture 25/75 of ethylene/hydrogen, and characterized by XRD, N<sub>2</sub>-physisorption, TPR, TPD of NH<sub>3</sub> or isopropylamine (IPA), and XPS. The results have demonstrated that the support choice affects the carburization of rhenium. Indeed, over non-acidic support (e.g., SiO<sub>2</sub>), limited carburization of the metal was observed, while over ZrO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub>, carburization of rhenium occurred, and different carbidic species were obtained depending on the surface and chemical identity of the support. The rhenium carbide species obtained over ZrO<sub>2</sub> was the most active and selective toward benzene (22% at 98% of conversion).https://www.mdpi.com/2073-4344/12/10/1229HDOrhenium carbidesacidity |
| spellingShingle | Elodie Blanco Ana Belén Dongil Isaac Tyrone Ghampson Néstor Escalona Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound Catalysts HDO rhenium carbides acidity |
| title | Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound |
| title_full | Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound |
| title_fullStr | Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound |
| title_full_unstemmed | Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound |
| title_short | Effect of the Support on Rhenium Carbide in the Hydrodeoxygenation of Guaiacol as Lignin-Derived Model Compound |
| title_sort | effect of the support on rhenium carbide in the hydrodeoxygenation of guaiacol as lignin derived model compound |
| topic | HDO rhenium carbides acidity |
| url | https://www.mdpi.com/2073-4344/12/10/1229 |
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