Preparation method of ultramicroporous high-specific-area denitrification catalyst material
A technology of denitration catalyst and high specific surface area, which is applied in the field of preparation of ultra-microporous and high specific surface area denitration catalyst materials, can solve the problems of secondary pollution, crystal form conversion and high cost, limiting the wide application of V2O5/TiO2 catalyst, etc. The effect of increasing the contact area, avoiding the addition of active components by impregnation and repeated roasting
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Embodiment approach 1
[0021] Add 2g of fatty alcohol polyoxyethylene ether, 0.6g of citric acid and 0.18g of copper nitrate into 30mL of ethanol solution containing 2.0g of 12M hydrochloric acid, stir at room temperature to completely dissolve the surfactant, and simultaneously add 3.06g of iso Aluminum propoxide, after stirring at 35°C for 24 hours, the reaction mixture was poured into a Petri dish and treated at 55°C for 48 hours. Finally, the samples were fired at 400°C for 5 hours. The denitrification catalyst material was obtained, and nitrogen adsorption characterization showed that its micropore diameter was 1.48nm and the specific surface area was 593m 2 / g.
[0022] Catalyst Activity Test Method
[0023] 0.3 g of the catalyst passed through a 50-mesh sieve was loaded into a reaction tube, and the temperature was controlled by a tube-type resistance furnace program. The mixed gas simulates flue gas and is provided by the corresponding steel cylinder. The proportion (volume fraction) of ...
Embodiment approach 2
[0028] Add 2g of fatty alcohol polyoxyethylene ether, 0.55g of malic acid and 0.35g of copper sulfate into 20mL of ethanol solution containing 2.0g of 16M nitric acid, stir at room temperature to completely dissolve the surfactant, and simultaneously add 3.06g of iso Aluminum propoxide, after stirring at 30°C for 24 hours, the reaction mixture was poured into a Petri dish and treated at 60°C for 48 hours. Finally the samples were fired at 450°C for 5 hours. The denitrification catalyst material was obtained, and nitrogen adsorption characterization showed that its micropore diameter was 1.7nm, and its specific surface area was 552m 2 / g.
[0029] Catalyst Activity Test Method
[0030] 0.3 g of the catalyst passed through a 50-mesh sieve was loaded into a reaction tube, and the temperature was controlled by a tube-type resistance furnace program. The mixed gas simulates flue gas and is provided by the corresponding steel cylinder. The proportion (volume fraction) of the cor...
Embodiment approach 3
[0035]Add 1.5g fatty alcohol polyoxyethylene ether, 0.75g salicylic acid and 0.45g copper nitrate to 30mL ethanol solution containing 2.0g 16M nitric acid, stir at room temperature to completely dissolve the surfactant, and add 4.08 g to the system at the same time g aluminum isopropoxide, stirred at 35°C for 24 hours, poured the reaction mixture into a Petri dish and treated at 60°C for 48 hours. Finally the samples were fired at 450°C for 5 hours. The denitrification catalyst material was obtained, and nitrogen adsorption characterization showed that its micropore diameter was 1.7nm and the specific surface area was 561m 2 / g.
[0036] Catalyst Activity Test Method
[0037] 0.3 g of the catalyst passed through a 50-mesh sieve was loaded into a reaction tube, and the temperature was controlled by a tube-type resistance furnace program. The mixed gas simulates flue gas and is provided by the corresponding steel cylinder. The proportion (volume fraction) of the correspondin...
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