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Deoxygenation of model biofuel compounds over CsNaX zeolite catalyst
Author(s)
Danuthai, Tanate
Peralta, Maria A.
Osuwan, Somchai
Lobban, Lance L.
Mallinson, Richard G.
Resasco, Daniel E.
Date Issued
December 1, 2008
Type
Conference Paper
Abstract
The deoxygenation of methyl octanoate and benzaldehyde over CsNaX zeolite catalyst has been investigated as a model for reactions for production of hydrocarbon fuels from bio-oxygenates. The CsNaX zeolite used in the study was prepared by ion exchange of NaX with a CsNO3/CsOH solution to a 50% exchange level. The decarbonylation activity, selectivity, and stability of the CsNaX catalyst were enhanced when methanol was co-fed for the reaction of methyl octanoate. TPD studies suggest that methyl octanoate first decomposes to an octanoate-like species. The decomposition of such species leads to the formation of heptenes and hexenes as major products. Octenes and hydrogenated products are formed in lesser amounts via hydrogenation / hydrogenolysis using hydrogen produced on the surface from methanol decomposition, but not from gas phase H2.
Citation
Aiche Annual Meeting Conference Proceedings, 2008