High-specific-surface denitration catalyst and preparation and application thereof
A denitration catalyst, high specific surface technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the limitations of the wide application of denitration catalysts, the catalyst activity temperature window is narrow, and the specific surface area of the carrier is low, etc. problem, to achieve good denitration activity, improve nitrogen oxide conversion rate, and high N2 selectivity.
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[0032] Example: Preparation of high specific surface area supported catalyst
[0033] 1. Dissolution of ammonium metavanadate
[0034] Weigh 0.32143g of ammonium metavanadate and 0.40179g of oxalic acid, and add them to 100mL of deionized water; magnetically stir at 80°C for 10 minutes at a speed of 300r / min, until the ammonium metavanadate is completely dissolved and solution 1 is formed;
[0035] 2. Preparation of titanium dioxide suspension
[0036] Weigh 4.5g high specific surface area (SBET≥300m 2 / g) Titanium dioxide carrier powder, add 90 mL of deionized water and mix; magnetically stir at 80° C. for 30 min at a speed of 300 r / min, until a titanium dioxide suspension is formed, that is, solution 2.
[0037] 3. Dipping process
[0038] Pour solution 1 into solution 2, and add 200 mL deionized water to dilute at the same time, and perform magnetic stirring at 80° C. for 1 h at a speed of 300 r / min. Put the stirred solution into an ultrasonic generator and ultrasonically treat it at...
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