High specific surface area honeycomb type denitration catalyst and preparation method thereof
A technology of denitrification catalyst and high specific surface area, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc. It can solve the problems of large amount of catalyst, high cost, low catalytic efficiency, etc., and has excellent ability to reach high temperature , long mechanical life, high denitrification efficiency
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Embodiment 1
[0024] Example 1, high specific surface area honeycomb denitration catalyst.
[0025] High specific surface area honeycomb denitration catalyst, its raw materials and proportioning ratio are listed in Table 1:
[0026] raw material name Titanium tungsten silicon powder vanadium kapok glass fiber ammonia Deionized water glue content / % 72 0.4 3.5 5.7 7 10.8 0.6
[0027] Table 1:
[0028] The selection of the main raw material titanium dioxide plays a vital role in the specific surface area of the catalyst. The high specific surface area honeycomb denitration catalyst chooses the raw material titanium dioxide with good stability and high specific surface area to increase the specific surface area of the finished catalyst. We choose The specific surface area of titanium dioxide can reach 120m 2 / g; The stable material WO needed to add catalyst to titanium dioxide 3 , to reduce part of the batching process in the production process. ...
Embodiment 2
[0030] Example 2, the preparation method of high specific surface area honeycomb denitration catalyst.
[0031]The method in this example is mainly used to prepare the catalyst of Example 1. After the raw materials are selected, the raw materials are prepared according to the ratio. First, titanium, tungsten and silicon powder are added to the mixer, 10% deionized water and part of ammonia water are added, and the mixing is started. Make the blades in the mixer rotate at a low speed for 10 minutes, increase the rotation speed of the blades and close the exhaust valve, make the temperature of the mud in the mixer reach 95°C, and stir at this temperature for 40 minutes. After the mud is mixed to a certain extent, glass fiber, pore-forming material kapok and active component vanadium solution are added. The blades of the mixer rotate at high speed to fully mix all the ingredients in the mixer. The blade speed reaches 750rpm, so that the kapok and Titanium dioxide is evenly fused,...
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