Regeneration fluid for SCR denitration catalyst
A technology of denitrification catalyst and regeneration solution, which is applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalysts, chemical instruments and methods, etc. It can solve the problems of expensive catalysts and achieve the effect of improving cleaning ability and catalyst activity
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Embodiment 1
[0013] 1. Take penetration enhancer JFC accounting for 1wt‰ of the total weight, surfactant OP-10 accounting for 1wt‰ of the weight, dissolve in deionized water and stir for 2 minutes until uniform, prepare solution A; take ammonium metavanadate accounting for the total Dissolve 1wt%, ammonium paratungstate 6wt%, and ammonium paramolybdate 2wt% in solution A, stir mechanically for 30 minutes to mix evenly, and prepare solution B; add oxalic acid to solution B, adjust the pH value to 5, and stir mechanically for 3 minutes , make it mix evenly, place and age for 2h, and make the catalyst regeneration solution;
[0014] 2. Take a vanadium-based honeycomb catalyst detection block (150×150×1000) from a factory whose catalytic efficiency has dropped from 90% to 35%, and blow it with oil-free dry compressed air (0.6MPa);
[0015] 3. Immerse the purged catalyst detection block in 100,000g regeneration solution, take it out after immersion for 5 hours, dry it with dry air at 55°C for 2...
Embodiment 2
[0020] 1. Take 3wt‰ of the penetration enhancer JFC, 5wt‰ of the total weight of the surfactant OP-10, and 5wt‰ of the weight of Pingpingjia, dissolve in deionized water and stir for 5 minutes until uniform, and prepare solution A; Ammonium metavanadate accounted for 3wt% of the total, ammonium paratungstate 9wt%, ammonium paramolybdate 4wt% were dissolved in solution A, mechanically stirred for 30 minutes to make it evenly mixed, and prepared solution B; add acetic acid to solution B to adjust the pH value to 6, and mechanically stirred for 7 minutes to make it evenly mixed, and left to age for 4 hours to obtain a catalyst regeneration solution.
[0021] 2. Take a vanadium-based honeycomb catalyst detection block (150×150×1000) from a factory whose catalytic efficiency has dropped from 90% to 35%, and blow it with oil-free dry compressed air (0.6MPa);
[0022] 3. Immerse the purged catalyst detection block in 100,000g regeneration solution, take it out after immersion for 5 h...
Embodiment 3
[0027] 1. Take 5wt‰ of penetration enhancer JFC, 2wt‰ of surfactant OP-10, and 3wt‰ of Pingpingjia, dissolve in deionized water and stir for 4 minutes until uniform, and prepare solution A; take Ammonium metavanadate accounted for 4wt% of the total, ammonium paratungstate 12wt%, ammonium paramolybdate 6wt% were dissolved in solution A, mechanically stirred for 60 minutes to mix evenly, and prepared solution B; add citric acid to solution B to adjust pH value to 7, and mechanically stirred for 10 minutes to make it evenly mixed, and left to age for 5 hours to obtain a catalyst regeneration solution.
[0028] 2. Take a vanadium-based honeycomb catalyst detection block (150×150×1000) from a factory whose catalytic efficiency has dropped from 90% to 35%, and blow it with oil-free dry compressed air (0.6MPa);
[0029] 3. Immerse the purged catalyst detection block in 100,000g regeneration solution, take it out after immersion for 5 hours, dry it with dry air at 55°C for 2 hours, pu...
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