MnO2-TiO2-carbon nano tube porous inorganic ceramic membrane low-temperature denitration catalyst and preparation method thereof
A technology of inorganic ceramic membranes and carbon nanotubes, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., to achieve the effect of increasing conversion rate, low price, and non-deformable structure
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Embodiment 1
[0022] A kind of MnO 2 -TiO 2 A carbon nanotube-porous inorganic ceramic membrane low-temperature denitrification catalyst, the preparation method of which is as follows:
[0023] Step (1): The main component is SiO 2 、Al 2 o 3 , CaO, MgO, TiO 2 、K 2 O, Na 2 The cinder of O is ground to 0.06 mm~0.09 mm, 10 wt.% of charcoal with a particle size of 0.02 mm is added, and it is molded on a press using a semi-dry method at a molding pressure of 38 MPa, and pressed into φ10×5 mm The pressed flakes were calcined in a muffle furnace at 1100 oC for 2 h to obtain fly ash-based porous ceramic flakes, which were ground to a particle size of 0.1 mm–0.3 mm.
[0024] Step (2): At room temperature, put 0.31 g of carbon nanotubes into absolute ethanol, ultrasonically pulverize for 15 min, then add 35.57 g of n-butyl titanate after ordinary ultrasonic treatment for 15 min, and then ultrasonically treat for 30 min. 60 ml of 0.5 mol / L acetic acid and 3.79 g of Mn(NO 3 ) 2 4H 2 O mangan...
Embodiment 2
[0028] A kind of MnO 2 -TiO 2 Carbon nanotube-porous inorganic ceramic membrane low temperature denitration catalyst, its preparation method is as follows:
[0029] Step (1): The main component is SiO 2 、Al 2 o 3 , CaO, MgO, TiO 2 、K 2 O, Na 2The cinder of O is ground to 0.06 mm~0.09 mm, and 10 wt.% of charcoal with a particle size of 0.02 mm is added, and molded on a press with a semi-dry method at a molding pressure of 38 MPa to form a φ10×5 mm The pressed flakes were calcined in a muffle furnace at 1100 oC for 2 h to obtain fly ash-based porous ceramic flakes, which were ground to a particle size of 0.1 mm–0.3 mm.
[0030] Step (2): At room temperature, put 0.25 g of carbon nanotubes into absolute ethanol, ultrasonically pulverize for 15 min, then add 28.48 g of n-butyl titanate after ordinary ultrasonic treatment for 15 min, and then ultrasonically treat for 30 min. 48 ml of 0.5 mol / L acetic acid and 3.05 g of Mn(NO 3 ) 2 4H 2 O manganese nitrate mixed solution ...
Embodiment 3
[0034] A kind of MnO 2 -TiO 2 A carbon nanotube-porous inorganic ceramic membrane low-temperature denitrification catalyst, the preparation method of which is as follows:
[0035] Step (1): The main component is SiO 2 、Al 2 o 3 , CaO, MgO, TiO 2 、K 2 O, Na 2 The cinder of O is ground to 0.06 mm~0.09 mm, and 10 wt.% of charcoal with a particle size of 0.02 mm is added, and molded on a press with a semi-dry method at a molding pressure of 38 MPa to form a φ10×5 mm The pressed flakes were calcined in a muffle furnace at 1100 oC for 2 h to obtain fly ash-based porous ceramic flakes, which were ground to a particle size of 0.1 mm–0.3 mm.
[0036] Step (2): At room temperature, put 0.12 g of carbon nanotubes into absolute ethanol, ultrasonically pulverize for 15 min, then add 14.24 g of n-butyl titanate after ordinary ultrasonic treatment for 15 min, and then ultrasonically treat for 30 min. 30 ml of 0.5 mol / L acetic acid and 1.90 g of Mn(NO 3 ) 2 4H 2 O manganese nitrate...
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