Methanol to long-chain oxygenates over Mg/Al mixed oxides supported Cu catalysts

The synthesis of long-chain oxygenates (C2+) from methanol is examined at atmospheric pressure and 523–673 K. The Cu–ZnO/d-HT (decomposed hydrotalcite) catalyst shows ca. 10% yield of C2+ at 573 K and a weight hourly space velocity of 0.2 h−1; whereas, no C2+ is formed over Cu/d-HY, Cu–MgO/Al2O3, Cu...

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Bibliographic Details
Published in:Catalysis letters 2007-11, Vol.119 (1-2), p.72-78
Main Authors: HSIAO, Ting C, LIN, Shawn D
Format: Article
Language:English
Subjects:
Aluminum oxide
Basicity
Catalysis
Catalysts
Chains
Chemical synthesis
Chemistry
Copper
Exact sciences and technology
General and physical chemistry
Magnesium
Methanol
Mixed oxides
Reaction intermediates
Synergistic effect
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zinc oxide
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Summary:The synthesis of long-chain oxygenates (C2+) from methanol is examined at atmospheric pressure and 523–673 K. The Cu–ZnO/d-HT (decomposed hydrotalcite) catalyst shows ca. 10% yield of C2+ at 573 K and a weight hourly space velocity of 0.2 h−1; whereas, no C2+ is formed over Cu/d-HY, Cu–MgO/Al2O3, Cu–ZnO/Al2O3, or a commercial Cu/ZnO methanol synthesis catalyst. The role of the synergistic effect of Cu, ZnO and the basicity of d-HT and the possible reaction intermediates for the C2+ synthesis are discussed.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-007-9191-9