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Conversion of Vegetable Oils into Hydrocarbons over CoMo/MCM-41 Catalysts

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Abstract

Deoxygenation of triglycerides over Co and Mo sulfides supported on a series of mesoporous molecular sieves (MCM-41) with varying Si/Al ratio has been investigated in this contribution. The catalysts were tested in a flow reactor at reaction temperatures 300 and 320 °C, hydrogen pressures 2–11 MPa and space velocities 1–4 h−1 using refined rapeseed oil as a feedstock. Incorporation of Al into the framework of MCM-41 led to an increase of both conversion of triglycerides and selectivity to hydrocarbons, namely n-heptadecane and n-octadecane. However, the conversion of triglycerides was lower than that achieved over alumina supported CoMo. Moreover, the rather high selectivity to oxygenated products, as compared with alumina supports, has made possible a detailed description of the reaction intermediates and their dependence on the reaction conditions.

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Acknowledgements

The financial support by the Ministry of Industry and Trade of the Czech Republic (project FT-TA3/074) is gratefully acknowledged. The authors thank to Mr. Josef Chudoba (Institute of Chemical Technology Prague) for the GC/MS analyses of deoxygenation products.

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Authors and Affiliations

  1. Department of Refinery and Petrochemical Research, Research Institute of Inorganic Chemistry, Záluží 1, D.S. 458, 436 70, Litvínov, Czech Republic

    David Kubička

  2. J. Heyrovský Institute of Physical Chemistry, v.v.i, Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23, Prague, Czech Republic

    Martina Bejblová & Josef Vlk

Authors
  1. David Kubička
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  2. Martina Bejblová
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  3. Josef Vlk
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Correspondence to David Kubička.

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Kubička, D., Bejblová, M. & Vlk, J. Conversion of Vegetable Oils into Hydrocarbons over CoMo/MCM-41 Catalysts. Top Catal 53, 168–178 (2010). https://doi.org/10.1007/s11244-009-9421-z

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