New bimetallic hydrotreating catalyst mows2 based on heteropoly acid simo3w9 and mesostructured silicate cok-12 - Université de Lille Accéder directement au contenu
Article Dans Une Revue Neftekhimiya / Petroleum Chemistry Année : 2020

New bimetallic hydrotreating catalyst mows2 based on heteropoly acid simo3w9 and mesostructured silicate cok-12

Résumé

Bimetallic catalysts MoW/СОK-12 are synthesized on the basis of mesostructured silicate COK‑12 prepared from sodium silicate aqueous solution using the Keggin structure hetero polyacid H4Si-Mo3W9O40 as an oxide precursor of the sulfide active phase and with the use of the mechanical mixture of two monometallic hetero polyacids (H4SiMo12O40 and H4SiW12O40) at a molar ratio of Mo/W = 3/9. Alumina-based analogs with the same surface metal content are used as reference samples. The test samples are analyzed by low-temperature nitrogen adsorption and high-resolution transmission electron microscopy. The catalytic activity is studied in the combined hydrotreatment of dibenzothiophene and naphthalene and in the hydrodesulfurization of 4,6-dimethyldibenzothiophene in a flow unit. It is shown that the use of mesostructured silicate COK-12 as a support leads to an increase in catalytic activity in target hydrotreating reactions.
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Dates et versions

hal-04441109 , version 1 (06-02-2024)

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Citer

A. S. Koklyukhin, M. S. Nikul'Shina, A. V. Mozhaev, Pascal Blanchard, Christine Lancelot, et al.. New bimetallic hydrotreating catalyst mows2 based on heteropoly acid simo3w9 and mesostructured silicate cok-12. Neftekhimiya / Petroleum Chemistry, 2020, Neftekhimiya / Petroleum Chemistry, 60, pp.616-621. ⟨10.1134/S0965544120050047⟩. ⟨hal-04441109⟩
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