FIELD: oil and gas industry.
SUBSTANCE: invention relates to a method of producing hydrotreatment catalysts for hydrocarbon feedstock based on amorphous metallic nanoparticles, pertains to oil refining and can be used for purification of diesel fuel and diesel-oil fractions from sulfur-containing and nitrogen-containing compounds. Structure of the catalysts is formed by laser electrodispersion, for which the surface of a metal target of the composition Mo-(Co,Ni) or W-(Co,Ni) is exposed to radiation from a powerful pulsed laser, emergence of microdroplets of the metal on the surface of the target is generated, charging of the droplets in the plasma of the laser torch and their subsequent division before the formation of nanometer-sized droplets is facilitated, during cooling of which amorphous metallic nanoparticles are formed, then the resulting nanoparticles are applied on a granular support with a deposition density ranging from 0.1 monolayer to 3.0 monolayers of nanoparticles.
EFFECT: technical result consists in increasing the efficiency of catalysis, especially when working with heavy high-sulfur distillates.
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Authors
Dates
2018-02-21—Published
2017-05-22—Filed