Deoxidation catalyst as well as preparation method and application thereof
A deoxidation catalyst and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve problems such as high energy consumption
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Embodiment 1
[0021] Preparation of modified silicon oxide: use equal volume impregnation method on silicon oxide (commercially available commodity, properties are as follows: specific surface 335m 2 / g, pore volume is 0.86ml / g) impregnated with Nd nitrate and nickel nitrate aqueous solution, the molar concentration of Nd and nickel metal ions in the solution is 0.5mol / L, after impregnation, dry and roast, the drying time is 1h, dry The temperature is 100°C; the calcination time is 2h, and the temperature is 900°C;
[0022] Preparation of cobalt-loaded silicon oxide: impregnate cobalt nitrate solution on the modified silicon oxide by equal volume impregnation method, dry and roast after impregnation, the drying time is 2 hours, and the drying temperature is 130 ° C; the roasting time is 4 hours, the temperature is 400°C;
[0023] The zirconium sulfate and cobalt-loaded silica are kneaded and formed, and then dried and calcined to obtain a deoxidation catalyst. The drying time is 4 hours an...
Embodiment 2
[0026] Preparation of modified silicon oxide: use equal volume impregnation method on silicon oxide (commercially available commodity, properties are as follows: specific surface 335m 2 / g, pore volume is 0.86ml / g) impregnated with Nd nitrate and nickel nitrate aqueous solution, the molar concentration of Nd and nickel metal ions in the solution is 1.5mol / L, after impregnation, dry and roast, the drying time is 2h, dry The temperature is 100°C; the calcination time is 8h, and the temperature is 700°C;
[0027] Preparation of cobalt-loaded silica: impregnate cobalt sulfate solution on the modified silica by equal volume impregnation method, dry and roast after impregnation, the drying time is 3 hours, and the drying temperature is 120°C; the roasting time is 5 hours, the temperature is 450°C;
[0028] The zirconium sulfate and cobalt-loaded silica are kneaded and formed, and then dried and calcined to obtain a deoxidation catalyst. The drying time is 4 hours and the drying tem...
Embodiment 3
[0031] Preparation of modified silicon oxide: use equal volume impregnation method on silicon oxide (commercially available commodity, properties are as follows: specific surface 335m 2 / g, pore volume is 0.86ml / g) impregnated with Nd nitrate and nickel nitrate aqueous solution, the molar concentration of Nd and nickel metal ions in the solution is 1mol / L, after impregnation, dry and roast, the drying time is 0.5h, dry The temperature is 130°C; the calcination time is 5h, and the temperature is 800°C;
[0032] Prepare cobalt-loaded silica: impregnate cobalt bromide solution on the modified silica by equal-volume impregnation, dry and roast after impregnation, the drying time is 4 hours, and the drying temperature is 100°C; the roasting time is 4 hours, The temperature is 500°C;
[0033] Preparation of cobalt-loaded silica: impregnate cobalt sulfate solution on the modified silica by equal volume impregnation method, dry and roast after impregnation, the drying time is 3 hours...
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