A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Catalytic conversion of glucose to methyl levulinate over metal-modified Beta zeolites
Tekijät: Aho Atte, Kumar Narendra, Eränen Kari, Mäki-Arvela Päivi, Salmi Tapio, Peurla Markus, Angervo Ilari, Hietala Jukka, Murzin Dmitry Yu
Kustantaja: SPRINGER
Julkaisuvuosi: 2022
Journal: Reaction Kinetics, Mechanisms and Catalysis
Tietokannassa oleva lehden nimi: REACTION KINETICS MECHANISMS AND CATALYSIS
Lehden akronyymi: REACT KINET MECH CAT
Vuosikerta: 135
Numero: 4
Aloitussivu: 1971
Lopetussivu: 1986
Sivujen määrä: 16
ISSN: 1878-5190
eISSN: 1878-5204
DOI: https://doi.org/10.1007/s11144-022-02225-7
Verkko-osoite: https://link.springer.com/article/10.1007/s11144-022-02225-7
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/175951164
Methyl levulinate was selectively formed from glucose and methanol over a copper modified Beta zeolite bifunctional catalyst at 180 degrees C under argon atmosphere. The selectivity to methyl levulinate substantially exceeded previously reported in the open literature results. The copper modification was done through an ion-exchange method using a solution of copper nitrate, followed by drying and calcination of the catalyst. Copper modification changed the distribution of acid sites namely, less Bronsted and more Lewis sites were observed with FTIR using pyridine adsorption. Application of the proton form H-Beta-25 gave the methyl levulinate yield of ca. 89%, which could be elevated with the addition of copper, as the apparent selectivity exceeds 99%, assuming that methyl glucosides are eventually transformed to methyl levulinate. The non-acidic Cu/SiO2 catalyst was completely inactive in methyl levulinate formation. Metal modification of Beta zeolite with Sn and Zn did not perform as well as Cu in the formation of methyl levulinate during glucose transformation.
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