Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects
Bio-based solvents menthene and menthane were obtained through limonene’s partial and total hydrogenation under various catalytic conditions. Heterogeneous catalysts based on different active metals and supports (carbon, alumina, and silica) were systematically tested for solvent-free total and part...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2020/5946345 |
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| author | Fanta J. Ndongou Moutombi Anne-Sylvie Fabiano-Tixier Olivier Clarisse Farid Chemat Mohamed Touaibia |
| author_facet | Fanta J. Ndongou Moutombi Anne-Sylvie Fabiano-Tixier Olivier Clarisse Farid Chemat Mohamed Touaibia |
| author_sort | Fanta J. Ndongou Moutombi |
| collection | DOAJ |
| description | Bio-based solvents menthene and menthane were obtained through limonene’s partial and total hydrogenation under various catalytic conditions. Heterogeneous catalysts based on different active metals and supports (carbon, alumina, and silica) were systematically tested for solvent-free total and partial hydrogenation of limonene under high and low hydrogen pressure. Influences of these catalysts on the formation of menthene, menthane, and cymene, a dehydrogenated product, were determined. The impact of water addition on the conversion and selectivity of the catalysts was also investigated. Amongst all tested catalysts, Rh/Alumina which was never tested for total and partial hydrogenation of limonene was the most effective as 1-menthene was quantitatively produced at low pressure (0.275 MPa) while menthane was mostly obtained at a higher pressure (2.75 MPa). Water addition on Rh/Alumina favoured menthene production even at high pressure. To propose menthane, menthene, and menthane/menthene mixture as an alternative to fossil-based solvents such as n-hexane for the extraction of natural products, β-carotene, vanillin, and rosmarinic acid solubilizations have been investigated. If a modeling approach using COSMO-RS software predicted a comparable solubilization of these 3 compounds for the 3 solvents, experimental assays revealed that menthene solubilizes β-carotene, vanillin, and rosmarinic acid three to five times better than n-hexane. |
| format | Article |
| id | doaj-art-e0ee83fe15924e46a69918faef7551e8 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-e0ee83fe15924e46a69918faef7551e82025-08-20T03:25:59ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/59463455946345Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water EffectsFanta J. Ndongou Moutombi0Anne-Sylvie Fabiano-Tixier1Olivier Clarisse2Farid Chemat3Mohamed Touaibia4Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, CanadaUniversité d’Avignon, INRA, UMR408, GREEN Extraction Team, F-84000 Avignon, FranceDepartment of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, CanadaUniversité d’Avignon, INRA, UMR408, GREEN Extraction Team, F-84000 Avignon, FranceDepartment of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, CanadaBio-based solvents menthene and menthane were obtained through limonene’s partial and total hydrogenation under various catalytic conditions. Heterogeneous catalysts based on different active metals and supports (carbon, alumina, and silica) were systematically tested for solvent-free total and partial hydrogenation of limonene under high and low hydrogen pressure. Influences of these catalysts on the formation of menthene, menthane, and cymene, a dehydrogenated product, were determined. The impact of water addition on the conversion and selectivity of the catalysts was also investigated. Amongst all tested catalysts, Rh/Alumina which was never tested for total and partial hydrogenation of limonene was the most effective as 1-menthene was quantitatively produced at low pressure (0.275 MPa) while menthane was mostly obtained at a higher pressure (2.75 MPa). Water addition on Rh/Alumina favoured menthene production even at high pressure. To propose menthane, menthene, and menthane/menthene mixture as an alternative to fossil-based solvents such as n-hexane for the extraction of natural products, β-carotene, vanillin, and rosmarinic acid solubilizations have been investigated. If a modeling approach using COSMO-RS software predicted a comparable solubilization of these 3 compounds for the 3 solvents, experimental assays revealed that menthene solubilizes β-carotene, vanillin, and rosmarinic acid three to five times better than n-hexane.http://dx.doi.org/10.1155/2020/5946345 |
| spellingShingle | Fanta J. Ndongou Moutombi Anne-Sylvie Fabiano-Tixier Olivier Clarisse Farid Chemat Mohamed Touaibia Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects Journal of Chemistry |
| title | Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects |
| title_full | Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects |
| title_fullStr | Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects |
| title_full_unstemmed | Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects |
| title_short | Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects |
| title_sort | partial and total solvent free limonene s hydrogenation metals supports pressure and water effects |
| url | http://dx.doi.org/10.1155/2020/5946345 |
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