Isomerization of β-pinene oxide over Sn-modified zeolites

Päivi Mäki-Arvela, Narendra Kumar, Sara Faten Diáz, Atte Aho, Mikko Tenho, Jarno Salonen, Anne-Riikka Leino, Krisztian Kordás, Pekka Laukkanen, Johnny Dahl, Iliya Sinev, Tapio Salmi, Dmitry Yu Murzin*

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

24 Citeringar (Scopus)

Sammanfattning

Four different Sn modified zeolites, namely three Beta zeolites with varying SiO2/Al2O3 ratio along with Sn-Y were synthesized, and characterized by XRD, TEM, SEM, pyridine adsorption desorption, nitrogen adsorption, XPS and EXAFS. Kinetics in β-pinene oxide isomerization into myrtanal was studied at 70°C in toluene as a solvent with different catalysts. The initial isomerization rate increases with increasing acidity. Complete conversion of β-pinene oxide was achieved with the three most acidic catalysts within 30 min, whereas only 72% conversion in 1440 min was obtained with the catalyst exhibiting the lowest acidity, Sn-Beta-300. The catalyst most selective to the formation of myrtanal was Sn-Beta-300 giving 64% selectivity at 72% conversion, which is related to low amounts of acid sites.

OriginalspråkEngelska
Sidor (från-till)228-237
Antal sidor10
TidskriftJournal of Molecular Catalysis A: Chemical
Volym366
DOI
StatusPublicerad - jan 2013
MoE-publikationstypA1 Tidskriftsartikel-refererad

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