Gaseous hydrocarbon self-heating conversion catalyst and preparation method thereof
A self-thermal conversion and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., to avoid the aggregation of active metal grains, ensure stability, increase Effect of Active Metal Dispersion
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[0042] Example 1
[0043] Take calcined kaolin (alumina 35.21%, silica 55.31%, impurities ≤ 2%, the same below), add 15% NaOH solution with mass fraction and soak at 70℃ for 4h, filter and wash until there is no Na + Exist, dry at 120°C and crush to 280 mesh.
[0044] Weigh 58.4 g of nickel nitrate and 12.8 g of magnesium nitrate, and dissolve them in 85 g of water, add the aqueous solution to 82.5 g of the alkali-modified kaolin, mix and beat, put the slurry in an oven at 120° C. and dry for 12 hours to obtain semi-finished product A1.
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[0045] Example 2
[0046] Take calcined kaolin and add 15% NaOH solution with mass fraction and soak it at 70℃ for 4h, filter and wash until there is no Na + Exist, dry at 120°C and crush to 280 mesh.
[0047] Weigh 66.2 g of nickel nitrate and 38.4 g of magnesium nitrate and dissolve them in 90 g of water. Add the aqueous solution to 88 g of the above alkali-modified kaolin, mix and beat the slurry, and put the slurry in an oven at 120° C. for drying for 12 hours to obtain semi-finished product A2.
Example Embodiment
[0048] Example 3
[0049] Take calcined kaolin and add 17% NaOH solution with mass fraction, soak it at 75℃ for 4h, filter and wash until there is no Na + Exist, dry at 120°C and crush to 280 mesh.
[0050] Weigh 77.8 g of nickel nitrate and 19.2 g of magnesium nitrate and dissolve them in 100 g of water. Add the aqueous solution to 95 g of the alkali-modified kaolin, mix and beat, and put the slurry in an oven at 120° C. for drying for 12 hours to obtain semi-finished product A3.
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