Preparation method of denitration catalyst adopting active carbon-TiO2 as carrier
A denitrification catalyst and activated carbon technology, applied in the direction of physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, chemical instruments and methods, etc., can solve the problems of poor mechanical properties of catalysts, environmental pollution, high treatment costs, etc. problem, to achieve the effect of wide active temperature window, strong operability and high denitrification efficiency
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Embodiment 1
[0015] Raw materials: 225 parts of activated carbon, 30 parts of TiO2, 15 parts of MoO2, 15 parts of Cr2O3, 25 parts of MnO2, 8 parts of SnO2, 20 parts of ZrO2, 32 parts of polyurea grease and 10 parts of 12-tungstophosphoric acid.
[0016] Preparation method: (1) Weigh the precursor titanic acid solution and activated carbon of TiO2, mix the titanic acid solution and the electrolyte solution, add activated carbon to it for impregnation, and after aging for 20 hours, transfer the mixed solution to a hydrothermal kettle, and then React at 130°C for 13 hours, filter, wash, dry, and roast to obtain activated carbon-TiO2 carrier;
[0017] (2) Weigh MoO2, Cr2O3, MnO2, SnO2, ZrO2, polyurea grease and 12-tungstophosphoric acid in parts by weight, mix MoO2, Cr2O3, MnO2, SnO2, ZrO2 and 12-tungstophosphoric acid, and add the above The prepared carrier is impregnated to obtain a denitrification catalyst slurry, which is mixed with a lubricant, coated on a stainless steel mesh, dried at 1...
Embodiment 2
[0019] Raw materials: 235 parts of activated carbon, 60 parts of TiO2, 28 parts of TiO2, 25 parts of MoO2, 10 parts of Cr2O3, 22 parts of MnO2, 10 parts of SnO2, 15 parts of ZrO2, 25 parts of lubricant and 15 parts of 12-tungstosilicate, wherein the lubricant is Epoxy resins and polyacrylates.
[0020] Preparation method: (1) Take the TiO2 precursor titanium tetrachloride solution and activated carbon, mix the titanium tetrachloride solution and the electrolyte solution, add activated carbon to it for impregnation, and after aging for 30 hours, transfer the mixed solution to a hydrothermal kettle , then reacted at 140°C for 14 hours, and after filtering, washing, drying and roasting, the activated carbon-TiO2 carrier was obtained;
[0021] (2) Weigh MoO2, Cr2O3, MnO2, SnO2, ZrO2, lubricant and 12-tungstosilicic acid in parts by weight, mix MoO2, Cr2O3, MnO2, SnO2, ZrO2 and 12-tungstosilicic acid, add the above The prepared carrier is impregnated to obtain a denitration cataly...
Embodiment 3
[0023] Raw materials: 245 parts of activated carbon, 20 parts of TiO2, 30 parts of MoO2, 5 parts of Cr2O3, 30 parts of MnO2, 2 parts of SnO2, 27 parts of ZrO2, 17 parts of lubricant and 15 parts of 12-molybdosilicic acid, wherein the lubricant is fatty acid amide and oleic acid.
[0024] Preparation method: (1) Take TiO2 precursor titanyl sulfate solution and activated carbon, mix titanyl sulfate solution and electrolyte solution, add activated carbon and impregnate it, after aging for 15 hours, transfer the mixed solution to a hydrothermal kettle , and then reacted at 120°C for 12 hours, and after filtering, washing, drying, and roasting, the activated carbon-TiO2 carrier was obtained;
[0025] (2) After mixing MoO2, Cr2O3, MnO2, SnO2, ZrO2 and 12-molybdosilicic acid, add the carrier prepared above and impregnate to obtain a denitrification catalyst slurry, mix the slurry with a lubricant, and apply Cover it on a stainless steel mesh, dry it at 95°C for 6 hours, and bake it ...
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