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The influence of the support on the properties of nickel catalysts for edible oil hydrogenation

Paper ID Volume ID Publish Year Pages File Format Full-Text
44183 46007 2006 11 PDF Available
Title
The influence of the support on the properties of nickel catalysts for edible oil hydrogenation
Abstract

Two silica-containing materials, diatomite and waterglass, have been used as supports of nickel catalysts for edible oil hydrogenation. The active phase has been deposited following the precipitation–deposition method. The textural and structural characteristics of the supports and precursors have been studied by nitrogen sorption, scanning electron microscopy (SEM), infrared (IR) spectroscopy and X-ray powder diffraction (XRD). The thermogravimetric (TG) analyses have been carried out under hydrogen flow at different heating rates. Chemisorption of hydrogen has also been applied for precursor characterization and the metal particle size has been calculated from hydrogen adsorption isotherms at 25 °C. The catalysts have been tested in the soybean oil hydrogenation reaction. The differences in the textural and structural properties of the catalysts under study have not been found to reflect on their activity and selectivity. However, the use of water glass as the support is considered to be preferable, because of the lower economic cost of the catalyst, related to the elimination of the mechanical, chemical and thermal treatment of the crude diatomite.

Keywords
Water glass; Diatomite; Precipitation–deposition; Textural and structural characterization; Reduction; Edible oil hydrogenation; Selectivity
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The influence of the support on the properties of nickel catalysts for edible oil hydrogenation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 299, 17 January 2006, Pages 73–83
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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