FIELD: chemistry.
SUBSTANCE: method of producing a catalyst for the hydrodeoxygenation of aliphatic oxygen-containing compounds to n-alkanes containing, as an active component, nickel phosphide on the surface γ-Al2O3, includes the impregnation of the carrier granules with a nickel compound, followed by reduction of the catalyst precursor, and treatment with a phosphorus-containing compound in the liquid phase by the method of temperature-programmed reducing phosphidation, characterized in that, in preparing the catalyst, an aqueous solution of nickel citrate and citric acid molar ratio of citric acid: Ni equal to 2, the resulting sample of the nickel-containing precursor catalyst prec preliminarily reduced in a hydrogen flow at a temperature not higher than 400°C, and treatment with the phosphorus-containing compound is carried out in the liquid phase by the method of temperature-programmed phosphidation with a phosphorus-organic compound solution, preferably with a solution of triphenylphosphine in n-decane, in a stream of hydrogen at a temperature of 250-380°C for 1-4 hours.
EFFECT: high activity and selectivity of the catalyst in the hydrodeoxygenation reaction of methyl palmitate to form n-hexadecane and n-pentadecane.
2 tbl, 4 ex
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Authors
Dates
2017-11-30—Published
2016-11-03—Filed