FIELD: chemistry.
SUBSTANCE: invention relates to a catalyst for heterogeneous catalysis that contains, at least, a mixed oxide of nickel and magnesium and magnesium spinel, where the mixed oxide of nickel and magnesium has an average crystallite size of ≤100 nm, the magnesium spinel phase has an average crystallite size of ≤100 nm. The nickel content is in the range of 7-28 mol %, the magnesium content is in the range of 8-38 mol %, and the aluminium content is in the range of 50-70 mol %. The BET surface area is in the range of 10-200 m2/g and the intensity of the diffraction catalyst reflection at 43.15°±0.15°2θ is less than or equal to the diffraction reflection intensity at 44.83±0.20°2θ, as measured at a wavelength of 0.154 nm. The invention also relates to the method of producing a catalyst for hydrocarbon reforming in the presence of water and CO2 producing a synthesis gas by impregnating the starting material with a fusible metal salt, comprising the following steps: (i) contacting the fusible metal salt and the fine-divided hydrotalcite-containing starting material, (ii) thoroughly mixing the fusible metal salt and the hydrotalcite-containing starting material, (iii) heat treating the fusible metal salt and hydrotalcite-containing starting material and heating the mixture under conditions, where the metal salt is in the form of a molten metal salt, (iv) low-temperature mixture calcination at the temperature of <500°C, (v) pressing or moulding, (vi) high-temperature mixture calcination produced in the previous stage at the temperature of >500°C. In addition, the invention relates to the method of reforming hydrocarbon-containing substances and CO2 to obtain a synthesis gas, in which the above-described catalyst is used, the reforming is carried out at a temperature of 500°C to 1100°C range.
EFFECT: synthesis gas production with a high CO content.
18 cl, 2 dwg, 7 tbl
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Authors
Dates
2017-10-03—Published
2012-11-05—Filed