| abstract |
The invention relates to the technical field of VOCs waste gas treatment engineering, in particular to a VOCs treatment catalyst and a preparation method and application thereof. The preparation method includes: step (1): immersing the cordierite ceramic in a first coating solution containing P123 and/or γ-type alumina, taking out and baking to obtain an intermediate carrier; the first coating The pH of the solution is 6.3-6.7; Step (2): immerse the intermediate carrier in the second coating solution containing active components and co-catalysts, take out and bake; the pH of the second coating solution 2 to 5. Through the improvement of the process, the prepared VOCs treatment catalyst has lower reaction temperature, higher catalytic activity and better stability; the VOCs treatment catalyst can achieve a removal rate of 99% for isopropanol at 162° C., 99% removal rate of p-toluene was achieved at 208°C, and 99% removal rate of ethyl acetate was achieved at 246°C. |