SCR (Selective Catalytic Reduction) catalyst and preparation method thereof
A SCR catalyst, RP-CHOP technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve problems such as low compressive strength, poor mechanical properties of catalysts, energy waste, etc., and achieve excellent low-temperature catalysis active effect
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Embodiment 1
[0020] A kind of SCR catalyst, by weight, it is prepared from following raw material: 90 parts of TiO 2 , 4 copies of WO 3 , 2 copies of V 2 o 5 , 6 parts of glass fiber, 8 parts of ammonia water, 8 parts of CMC, 50 parts of ionized water and 6 parts of RP-CHOP functional fiber.
[0021] The specific preparation method is as follows:
[0022] 1) The raw materials are mixed according to the stated ratio, and then stored for 40 hours;
[0023] 2) Pre-extrude the rotted material in step 1), and then enter the molding machine for molding;
[0024] 3) The formed product is dried once and twice until the moisture content reaches 5%, and then enters the kiln and is calcined at 620°C for 12 hours;
[0025] 4) Cutting, grading and packing the products burnt in step 3) and putting them into storage.
[0026] The honeycomb-type catalyst unit body prepared in this embodiment is measured and calculated: length 801mm, inner wall thickness 1.05mm, outer wall thickness 2.24mm, pore diam...
Embodiment 2
[0028] A kind of SCR catalyst, by weight, it is prepared from following raw material: 85 parts of TiO 2 , 5 copies of WO 3 , 1 copy of V 2 o 5 , 8 parts of glass fiber, 5 parts of ammonia water, 8 parts of CMC, 50 parts of ionized water and 6 parts of RP-CHOP functional fiber.
[0029] The specific preparation method is as follows:
[0030] 1) The raw materials are mixed according to the stated ratio, and then stored for 50 hours;
[0031] 2) Pre-extrude the rotted material in step 1), and then enter the molding machine for molding;
[0032] 3) The formed product is dried once and twice until the moisture content reaches 5%, and then enters the kiln and is calcined at 620°C for 12 hours;
[0033] 4) Cutting, grading and packing the products burnt in step 3) and putting them into storage.
Embodiment 3
[0035] A kind of SCR catalyst, by weight, it is prepared from following raw material: 95 parts of TiO 2 , 3 copies of WO 3 , 3 copies of V 2 o 5 , 5 parts of glass fiber, 10 parts of ammonia water, 8 parts of CMC, 50 parts of ionized water and 6 parts of RP-CHOP functional fiber.
[0036] The specific preparation method is as follows:
[0037] 1) The raw materials are mixed according to the stated ratio, and then stored for 50 hours;
[0038] 2) Pre-extrude the rotted material in step 1), and then enter the molding machine for molding;
[0039] 3) The formed product is dried once and twice until the moisture content reaches 5%, and then enters the kiln and is calcined at 620°C for 12 hours;
[0040] 4) Cutting, grading and packing the products burnt in step 3) and putting them into storage.
[0041] Effect experiment example
[0042] Carry out activity, SO with the catalyst prepared by the embodiment of the present invention as test sample 2 / SO 3 The detection of con...
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