Nickel catalysts for the hydrodeoxygenation of biodiesel

A number of nickel and nickel-copper catalysts for the hydrodeoxygenation of fatty acid esters (biodiesel) were studied. The CeO 2 and ZrO 2 oxides and the CeO 2 -ZrO 2 binary system were used as supports. The Ni-Cu/CeO 2 -ZrO 2 catalyst exhibited the highest activity; it allowed us to quantitativel...

Full description

Saved in:
Bibliographic Details
Published in:Kinetics and catalysis 2010-10, Vol.51 (5), p.704-709
Main Authors: Dundich, V. O., Khromova, S. A., Ermakov, D. Yu, Lebedev, M. Yu, Novopashina, V. M., Sister, V. G., Yakimchuk, A. I., Yakovlev, V. A.
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Physical Chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A number of nickel and nickel-copper catalysts for the hydrodeoxygenation of fatty acid esters (biodiesel) were studied. The CeO 2 and ZrO 2 oxides and the CeO 2 -ZrO 2 binary system were used as supports. The Ni-Cu/CeO 2 -ZrO 2 catalyst exhibited the highest activity; it allowed us to quantitatively convert biodiesel into linear alkanes under mild conditions (290–320°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/CeO 2 -ZrO 2 in the test reaction can be explained by the presence of a Ni 1 − x Cu x ( x = 0.2–0.3) solid solution as a constituent of the active component of the catalyst.
ISSN:0023-1584
1608-3210
DOI:10.1134/S0023158410050113