Effect of Method of Boron Introduction into NiMo/Al2O3 Protective-Layer Catalysts on the Removal of Silicon from Diesel Fractions

NiMo/γ-Al 2 O 3 protective-layer catalysts for removing silicon from diesel fractions were examined. The catalysts differ in the way in which boron is introduced into the support. The supports and catalysts were examined by X-ray diffraction analysis, transmission electron microscopy, IR spectroscop...

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Bibliographic Details
Published in:Russian journal of applied chemistry 2018-12, Vol.91 (12), p.2022-2029
Main Authors: Koval’skaya, A. A., Nadeina, K. A., Kazakov, M. O., Danilevich, V. V., Danilova, I. G., Gerasimov, E. Yu, Klimov, O. V., Noskov, A. S.
Format: Article
Language:English
Subjects:
Aluminum oxide
Boron
Boron compounds
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared spectroscopy
Molybdenum
Nickel
Silicon compounds
Transitional aluminas
Transmission electron microscopy
X-ray diffraction
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Summary:NiMo/γ-Al 2 O 3 protective-layer catalysts for removing silicon from diesel fractions were examined. The catalysts differ in the way in which boron is introduced into the support. The supports and catalysts were examined by X-ray diffraction analysis, transmission electron microscopy, IR spectroscopy, and adsorption–desorption of nitrogen. The catalysts were tested in hydropurification of the diesel fraction to which decamethylcyclopentanesiloxane was added as a model silicon compound. It was shown that introduction of boron into the support results in that the surface area of the supports and catalysts increases. If boron is introduced into pseudoboehmite, massive particles of the Ni–Mo–S phase are formed. It was found that the highest capacity for silicon is observed for the catalyst into which boron is introduced in the stage of pseudoboehmite preparation.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427218120145