期刊
KINETICS AND CATALYSIS
卷 51, 期 5, 页码 704-709出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S0023158410050113
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资金
- Federal Goal-Oriented Program [02.526.11.6007, NK-150P]
A number of nickel and nickel-copper catalysts for the hydrodeoxygenation of fatty acid esters (biodiesel) were studied. The CeO2 and ZrO2 oxides and the CeO2-ZrO2 binary system were used as supports. The Ni-Cu/CeO2-ZrO2 catalyst exhibited the highest activity; it allowed us to quantitatively convert biodiesel into linear alkanes under mild conditions (290-320A degrees C, 1.0 MPa). It was found that the selectivity of the formation of the main product (heptadecane) was 70-80%. The main correlations between the nature of catalysts and their activity under conditions of the target reaction were determined using temperature-programmed reduction, X-ray diffraction analysis, and electron microscopy. It was hypothesized that the high activity of Ni-Cu/CeO2-ZrO2 in the test reaction can be explained by the presence of a Ni1 - x Cu (x) (x = 0.2-0.3) solid solution as a constituent of the active component of the catalyst.
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