Porous carbon materials loaded with zero-valent fe-fe 3 The denitrification catalyst of c and its preparation and use method
A denitrification catalyst, fe-fe3c technology, applied in physical/chemical process catalysts, chemical instruments and methods, separation methods, etc., can solve the problems that are difficult to apply to coke oven flue gas denitrification, so as to avoid catalyst deactivation and reduce carrier carbon The loss and the effect of avoiding pollution
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[0022] Porous carbon material load zero price Fe-Fe 3 A method of preparation of the denitrifination catalyst, including the following steps:
[0023] 1) The sawdust is drying in a hem drying tank at 100 to 110 ° C for 12h, and the seal is stored;
[0024] 2) 5 ~ 10g solid Fe (NO 3 ) 3 · 9h 2 O is added to 50 to 100 ml of deionized water for mixing, stirring to form a transparent solution, and the concentration of the solution is 0.1 to 0.4 mol / L;
[0025] 3) Slowly adding step 1 in step 1) to step 2), then dry the sawdust, uniformly stirred 10 min or more, and the slurry is allowed to stand at room temperature;
[0026] 4) The slurry obtained by step 3) is dried in 100 to 110 ° C in the blower drying tank, and then placed in a tubular reactor, placing a tubular reactor with a slurry into a crucible furnace. The temperature is heated to 600 ~ 800 ° C under a nitrogen atmosphere, and the Fe-Fe is produced by holding from 30 min. 3 C / C denitrifination catalyst.
[0027] Porous c...
Embodiment 1
[0031] In this embodiment, Fe-Fe 3 The preparation step of the C / C denitrifination catalyst is as follows:
[0032] Step 1), dry the sawdust in a 105 ° C blast drying tank 12h, and the seal is stored;
[0033] Step 2) At 7.214 g Solid Fe (NO 3 ) 3 · 9h 2 O. 75 ml of deionized water was added to mix, stirring and formed a transparent solution, the concentration of the solution was 0.239 mol / L;
[0034] Step 3), slowly add the sawdust in step 2 in the transparent solution obtained from step 2), and stirred evenly for 10 min, and stand at room temperature for 12 h.
[0035] Step 4), the slurry obtained by step 3) is dried in a 105 ° C blower drying tank, and then the tube reactor is placed in a crucible furnace, and the nitrogen atmosphere is warmed to 750 ° C, heat the temperature for 30 min, and produce Fe -Fe 3 C / C denitrifination catalyst.
[0036] The simulated flue gas denitration test shows that in the air speed of 6000h -1 The NO volume concentration is 300 ppm, the oxy...
Embodiment 2
[0038] In this embodiment, Fe-Fe 3 The preparation step of the C / C denitrifination catalyst is as follows:
[0039] Step 1), dry the sawdust in a 105 ° C blast drying tank 12h, and the seal is stored;
[0040] Step 2), at 8.514G Solid Fe (NO 3 ) 3 · 9h 2 O. 75 ml of deionized water is added to mix, stirring to form a transparent solution, the concentration of the solution is 0.319 mol / L;
[0041] Step 3), slowly add the sawdust in step 2 in the transparent solution obtained from step 2), and stirred evenly for 10 min, and stand at room temperature for 12 h.
[0042] Step 4), the slurry obtained by step 3) is dried in a 105 ° C blast drying tank, and then the tube reactor is placed in a crucible furnace, and the nitrogen atmosphere is warmed to 650 ° C, heat insulation for 30 min, and produce Fe -Fe 3 C / C denitrifination catalyst.
[0043] Simulated flue gas denitration test showed that in a speed of 6000h -1 Under the conditions of the NO volume concentration of 300 ppm, the...
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