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Influence of Alumina Precursor on Silicon Capacity of NiMo/γ-Al2O3 Guard Bed Catalysts for Gas Oil Hydrotreating Full article

Conference International Symposium on Advances in Hydroprocessing of Oil Fractions
09-12 Jun 2019 , Mazatlán
Journal Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308
Output data Year: 2020, Volume: 353, Pages: 53-62 Pages count : 10 DOI: 10.1016/j.cattod.2019.10.028
Tags hydrotreating, guard bed, silicon, alumina
Authors Nadeina K.A. 1 , Kazakov M.O. 1 , Kovalskaya A.A. 1 , Danilova I.G. 1 , Cherepanova S.V. 1 , Danilevich V.V. 1 , Gerasimov E.Yu. 1 , Prosvirin I.P. 1 , Kondrashev D.O. 2 , Kleimenov A.V. 2 , Klimov O.V. 1 , Noskov A.S. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS
2 PJSC «Gazprom Neft»

Funding (1)

1 Federal Agency for Scientific Organizations 0303-2016-0010

Abstract: The influence of alumina precursors on NiMo/γ-Al2O3 catalysts for silicon removal from gas oil have been studied. Alumina precursors were prepared by hydrothermal treatment of gibbsite, precipitation of aluminum nitrate by ammonia and precipitation of aluminum nitrate in autoclave. Alumina precursors, supports and catalysts were studied by XRD, nitrogen adsorption-desorption, IR spectroscopy, UV–vis, XPS, SEM, HRTEM. Series of NiMo/γ-Al2O3 catalysts differed in preparation method of alumina precursors was tested in hydrotreating of diesel fraction contaminated with decamethylcyclopentasiloxane as a model silicon compound. It was shown that prepared alumina precursors were boehmites and dawsonite, which had different particle size. The supports prepared from these alumina precursors were γ-Al2O3 with different particles size. It was shown that there was a dependence of the surface area of the support on the size of primary particles measured by XRD. The higher surface area results in the higher content of OH groups and silicon sorption capacity. Morphology of the sulfide active component also depends on the size of primary particles. The higher length of the particles, the higher slab length of NiMoS phase. The catalyst with the lowest particle size of alumina and highest length of active component had the highest HDS activity.
Cite: Nadeina K.A. , Kazakov M.O. , Kovalskaya A.A. , Danilova I.G. , Cherepanova S.V. , Danilevich V.V. , Gerasimov E.Y. , Prosvirin I.P. , Kondrashev D.O. , Kleimenov A.V. , Klimov O.V. , Noskov A.S.
Influence of Alumina Precursor on Silicon Capacity of NiMo/γ-Al2O3 Guard Bed Catalysts for Gas Oil Hydrotreating
Catalysis Today. 2020. V.353. P.53-62. DOI: 10.1016/j.cattod.2019.10.028 WOS Scopus РИНЦ AN OpenAlex
Dates:
Submitted: Apr 9, 2019
Accepted: Oct 18, 2019
Published online: Oct 23, 2019
Published print: Aug 15, 2020
Identifiers:
Web of science: WOS:000564577300007
Scopus: 2-s2.0-85075366421
Elibrary: 41812333
Chemical Abstracts: 2019:2124758
OpenAlex: W2981710171
Citing:
DB Citing
Scopus 12
Elibrary 17
Web of science 9
OpenAlex 17
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