FIELD: hydration catalysts.
SUBSTANCE: invention relates to methods for preparing catalysts and their use. Described is a method for producing a hydrogenation catalyst, which includes the steps of: (1) contacting a first active metal component and a first organic complexing agent with a carrier to obtain a composite carrier; (2) calcining the composite carrier to obtain a calcined composite carrier in which the total carbon content, based on dry calcined composite carrier, is 1 wt% or less, and (3) contacting the second organic complexing agent with the calcined composite carrier to form a catalyst hydrogenation, wherein the process lacks any calcining step or any step for introducing a metal element active in the hydrogenation reaction during or after step (3). Described are methods of hydrotreating in the presence of a catalyst obtained and a composition containing the obtained catalyst I and a hydrogenation catalyst II other than catalyst I, the catalyst I being present in a volumetric amount from 5 to 95% with respect to the total volume of the catalyst composition.
EFFECT: increased catalyst activity.
17 cl, 17 tbl, 96 ex
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