Catalytic conversion of glucose to methyl levulinate over metal-modified Beta zeolites

Atte Aho, Narendra Kumar, Kari Eränen, Päivi Mäki-Arvela, Tapio Salmi, Markus Peurla, Ilari Angervo, Jukka Hietala, Dmitry Yu Murzin*

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

3 Citeringar (Scopus)
40 Nedladdningar (Pure)

Sammanfattning

Methyl levulinate was selectively formed from glucose and methanol over a copper modified Beta zeolite bifunctional catalyst at 180 °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 Brønsted 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.

OriginalspråkEngelska
Sidor (från-till)1971-1986
Antal sidor16
TidskriftReaction Kinetics, Mechanisms and Catalysis
Volym135
Nummer4
DOI
StatusPublicerad - aug. 2022
MoE-publikationstypA1 Tidskriftsartikel-refererad

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