Dehydration of glucose to 5-Hydroxymethlyfurfural on bifunctional carbon catalysts
| Autor: | José Antonio Odriozola, Miguel Ángel Centeno, Svetlana Ivanova, Antonio Monzón, Fatima Ammari, Cristina Megías-Sayago, Charf Eddine Bounoukta |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Universidad de Sevilla, Ministry of Higher Education and Scientific Research (Algeria) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Process Chemistry and Technology
chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology medicine.disease 01 natural sciences Catalysis 0104 chemical sciences Bifunctional catalyst chemistry.chemical_compound Dehydration reaction chemistry medicine Organic chemistry Dehydration 0210 nano-technology Bifunctional Brønsted–Lowry acid–base theory Carbon Isomerization General Environmental Science |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | The proposed study tries to reply on one important question concerning glucose dehydration: What is the role of bare or tandem Lewis/Brønsted acid sites in the reaction and which are better? A series of mono and bifunctional catalyst are designed and screened for the glucose dehydration reaction. The results clearly reveal that catalyst activity is a function of catalyst composition. The presence of Lewis sites the reaction toward first step isomerization, while the Brønsted acid dehydrate directly glucose to HMF via levoglucosane intermediate. This study proposed also a kinetic modelling of the included reactions and their contrast with the empirical observations. Financial support for this work was obtained from the Spanish Ministerio de Economía y Competitividad (MINECO) (Grant: ENE2017-82451-C3-3-R, RTI2018-096294-B-C33) co-financed by FEDER funds from the European Union. C. Bounoukta acknowledges Universidad de Sevilla and the Directorate General for Scientific Research and Technological Development (DGRSTD) of Algerian Ministry of Higher Education (MESRS) for his PhD scholarship. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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