Isomerization of Glucose-to-Fructose in Water over a Continuous Flow Reactor using Ca−Al Mixed Oxide as Heterogeneous Catalyst
This work reports the continuous isomerization of glucose to fructose in aqueous media under mild conditions using a mixed oxide hydrotalcite-derived catalyst based on Ca and Al. Different operational parameters of the continuous flow fix-bed catalytic reactor system were studied. At the optimal con...
| Authors: | , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2021 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/272977 |
| Online Access: | http://hdl.handle.net/10261/272977 |
| Access Level: | Open access |
| Keyword: | Glucose isomerization Monosaccharides Biomass valorization Continuous process Heterogeneous catalysis |
| Summary: | This work reports the continuous isomerization of glucose to fructose in aqueous media under mild conditions using a mixed oxide hydrotalcite-derived catalyst based on Ca and Al. Different operational parameters of the continuous flow fix-bed catalytic reactor system were studied. At the optimal conditions, the Ca−Al-based catalyst achieved a very high conversion and almost quantitative selectivity towards fructose, this being one of the few successful examples of a heterogeneous catalyst capable of carrying out this reaction in a continuous process. Importantly, catalytic activity held steady during four hours on stream, and slight deactivation occurring could be practically overcome by thermal regeneration of the catalyst. |
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