Aluminum oxide loaded manganese-nickel catalyst with no exhaust gas nitric oxide and preparation application
An alumina supported, nitrogen oxide technology, applied in metal/metal oxide/metal hydroxide catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problem of poor resistance to water and sulfur dioxide poisoning, low temperature problems such as low activity, to achieve good industrial application potential, reduce reaction gas resistance, and improve the effect of application scope
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Embodiment 1
[0012] Dissolve 0.1 mol aluminum isopropoxide in 100 mL of absolute ethanol, then add 16 mL of 68% wt.% nitric acid, stir vigorously at 25°C for 5 h to obtain solution A; take 10 g of P123 and dissolve in 100 mL of Water and ethanol, stirred vigorously at 25°C for 5 h to obtain solution B; slowly added solution B to solution A, continued vigorously stirring at 25°C for 4 h, transferred the mixed solution to a blast drying oven at 60°C for crystallization After aging for 48 h, the bright yellow solid was transferred to a muffle furnace for calcination in the air atmosphere, and the temperature was raised to 400 °C at a slow heating rate of 1 °C / min and kept at a constant temperature for 6 h to obtain ordered mesoporous alumina; take 5 g The prepared OMA carrier was dispersed in 100mL Mn(NO 3 ) 2 and Ni(NO 3 ) 2 In the mixed solution (wherein Mn(NO 3 ) 2 The amount of the substance is 3.08 mmol, and the Ni / Mn molar ratio is 0.4), then a 70°C water bath and slow stirring unt...
Embodiment 2
[0014] Dissolve 0.1 mol aluminum isopropoxide in 100 mL of absolute ethanol, then add 14 mL of 68% wt.% nitric acid, stir vigorously at 25°C for 5 h to obtain solution A; dissolve 8 g of P123 in 100 mL With absolute ethanol, stir vigorously at 25°C for 5 h to obtain solution B; slowly add solution B to solution A, continue vigorously stirring at 25°C for 4 h, and transfer the mixed solution to a blast drying oven at 60°C After crystallization and aging for 48 h, the bright yellow solid obtained was transferred to a muffle furnace for calcination in an air atmosphere, and the temperature was raised to 400 °C at a slow heating rate of 1 °C / min, and then raised to 600 °C at a rate of 5 °C / min and kept at a constant temperature for 6 h, to obtain ordered mesoporous alumina; take 5g of the prepared OMA carrier, and use initial wet impregnation to disperse it in 100mL Mn(NO 3 ) 2 and Ni(NO 3 ) 2 In the mixed solution (wherein Mn(NO 3 ) 2 The amount of the substance is 5.16 mmol...
Embodiment 3
[0016] Dissolve 0.1 mol aluminum isopropoxide in 100 mL of absolute ethanol, then add 15 mL of 68% wt.% nitric acid, stir vigorously at 25°C for 5 h to obtain solution A; dissolve 9 g of P123 in 100 mL With absolute ethanol, stir vigorously at 25°C for 5 h to obtain solution B; slowly add solution B to solution A, continue vigorously stirring at 25°C for 4 h, and transfer the mixed solution to a blast drying oven at 60°C After crystallization and aging for 48 h, the bright yellow solid was transferred to a muffle furnace for calcination in an air atmosphere. The temperature was raised to 400 °C at a slow heating rate of 1 °C / min, and then raised to 800 °C at a rate of 5 °C / min and kept at a constant temperature for 4 h, to obtain ordered mesoporous alumina; take 5g of the prepared OMA carrier, and use initial wet impregnation to disperse it in 100mL Mn(NO 3 ) 2 and Ni(NO 3 ) 2 In the mixed solution (wherein Mn(NO 3 ) 2 The amount of the substance is 6.64 mmol, and the Ni / ...
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