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Low temperature methanol synthesis in alcohol solvent over copper-based catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
52699 46881 2009 5 PDF Available
Title
Low temperature methanol synthesis in alcohol solvent over copper-based catalyst
Abstract

Alkali formate was a promising replacement for conventional alkoxide to catalyze the concurrent methanol synthesis over copper magnesium (Cu/MgO) catalyst from syngas (CO/H2) in ethanol solvent. The results exhibited that the catalytic activity of the combined alkali metal (X) formate/(Cu/MgO–X) catalyst system was in the order: Na > K > Rb > Li, at the reaction conditions of 433 K and 5.0 MPa. The doping of alkali increased the crystal size of metallic copper in copper magnesium catalyst. An obvious induction period of catalytic activity appeared in the Cu/MgO differently from the Cu/MgO–Na in the presence of HCOONa. Consequently, some reversible interaction was found to exist between alkali formate and copper magnesium surface for the formation of active complex and the production of methanol. Under suitable conditions, the syngas conversion and methanol STY reached to 90% and 46 mol/kg-cat./h. A new solid catalyzed reaction mechanism was also proposed.

Keywords
Methanol synthesis; Alkali formate; Cu/MgO–Na; Induction period; Active species
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 12, 25 June 2009, Pages 1620–1624
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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