Hydrotreatment of petroluem on Ni6-PMonW(12–n)(S)/Al2O3 catalysts View Full Text


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Article Info

DATE

2015-10

AUTHORS

N. N. Tomina, P. C. Solmanov, N. M. Maksimov, A. A. Pimerzin

ABSTRACT

The dependence of the catalytic activity of nickel–molybdenum–tungsten sulfide catalysts on the Mo/W molar ratio is studied in order to develop an effective catalytic composition for the hydrorefining of petroleum. Threemetallic catalysts of Ni6-PMonW12–n/Al2O3 composition, where n = 0–12 (Ni6-PMonW12–n(S)/Al2O3 after sulfurizing), are synthesized. The morphology of the active-phase particles of sulfide samples is investigated using high-resolution transmission electron microscopy. The average length of NiMo(W)S phase layers, the average number of layers in a crystallite, the number of Mo(W) atoms in a layer, and the fraction of Mo(W) atoms in the rib and angular positions are calculated. The effect of the Mo/W molar ratio on the catalytic activity of the prepared samples is studied during the dibenzothiophene hydrogenolysis, hydrodesulfurization (HDS), and hydrogenation of olephins and aromatic compounds when hydrotreating diesel fractions and vacuum gas oil. A sample with molar ratio Mo: W = 1: 1 was found to be the one most active in the reactions of HDS and hydrogenation. More... »

PAGES

307-313

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Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s2070050415040157

DOI

http://dx.doi.org/10.1134/s2070050415040157

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1049713546


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