Preparation method of antimony-doped modified cerium-tungsten oxide loaded titanium dioxide denitration catalyst
A denitration catalyst, titanium dioxide technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problem of urgent need to improve the catalytic efficiency, and control the production cost. , Environmental toxicity is small, the effect of improving catalytic activity
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Embodiment 1
[0023] A certain amount of cerium precursor salt and tungstic acid precursor salt are added to a beaker with a certain amount of ionized water, and the target makes the catalyst have 10wt% CeO 2 and 6 wt% WO 3 Content. Then put the above-mentioned beaker in the ultrasonic pool for 1h, and then remove the beaker from the ultrasonic pool. Then place it on the water bath and stir, add the P25TiO with a mass fraction of 84wt% 2 support, and stirred for 0.5h, then heated up to 80°C, and at this temperature, the active components were gradually supported on the titanium dioxide support until all the precursor salts were completely loaded on TiO 2 Then the body of the obtained catalyst was placed in an oven at 120 °C for 10 h to fully dry the catalyst precursor. Take the product out of the beaker and grind it in a mortar, then put it in a tube furnace, raise the temperature to 500°C at a rate of 2°C / min, calcinate for 4h, and then get antimony-doped cerium tungsten oxide denitrific...
Embodiment 2
[0026] A certain amount of cerium precursor salt and tungstic acid precursor salt are added to a beaker with a certain amount of ionized water, and the target makes the catalyst have 10wt% CeO 2 and 6 wt% WO 3 content, and make the content of antimony oxide in the antimony catalyst be 1wt%, then place the above-mentioned beaker in the ultrasonic bath for 1 hour, and then take the beaker out of the ultrasonic bath. Then place it on the water bath and stir, add the P25TiO with a mass fraction of 83wt% 2 support, and stirred for 0.5h, then heated up to 80°C, and at this temperature, the active components were gradually supported on the titanium dioxide support until all the precursor salts were completely loaded on TiO 2 Then the body of the obtained catalyst was placed in an oven at 120 °C for 10 h to fully dry the catalyst precursor. Take the product out of the beaker and grind it in a mortar, then put it in a tube furnace, raise the temperature to 500°C at a rate of 2°C / min,...
Embodiment 3
[0029] A certain amount of cerium precursor salt and tungstic acid precursor salt are added to a beaker with a certain amount of ionized water, and the target makes the catalyst have 10wt% CeO 2 and 6 wt% WO 3 content, and make the content of antimony oxide in the antimony catalyst be 3wt%, then place the above-mentioned beaker in the ultrasonic bath for 1h, and then take the beaker out of the ultrasonic bath. Then place it on the water bath and stir, add the P25TiO with a mass fraction of 81wt% 2support, and stirred for 0.5h, then heated up to 80°C, and at this temperature, the active components were gradually supported on the titanium dioxide support until all the precursor salts were completely loaded on TiO 2 Then the body of the obtained catalyst was placed in an oven at 120 °C for 10 h to fully dry the catalyst precursor. Take the product out of the beaker and grind it in a mortar, then put it in a tube furnace, raise the temperature to 500°C at a rate of 2°C / min, calc...
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