Heterogeneous Catalytic Wet Oxidation Catalyst
A technology of wet oxidation and heterogeneous catalysis, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, oxidized water/sewage treatment, etc., can solve the problem of low COD removal rate and achieve good The effect of technical effects
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Embodiment 1
[0037] 1. Vector preparation
[0038] Put 110g of finished MWCNTs powder (particle size 30 μm) and 110 g of finished graphite powder (particle size 30 μm) into a kneader and mix, pour 20 g of PEG400 aqueous solution with a concentration of 15 wt % and 50 g of water, knead, extrude, and roll into balls. Dry at 100° C. for 12 hours to obtain a spherical carrier with a diameter of 3 mm.
[0039] 2. Catalyst preparation
[0040] Mix 198g spherical carrier with 300g RuCl containing 2gRu 3 The methanol solution was mixed for impregnation. Stand at room temperature for 6h, then dry in an oven at 110°C for 16h, and then calcinate in a muffle furnace at 450°C for 2.5h to obtain a catalyst precursor. 400°C in H 2 -N 2 Reduction in the atmosphere for 4h to obtain the catalyst, wherein H 2 :N 2 The volume ratio is 4:96.
[0041] 3. Catalyst evaluation
[0042] Take 100g of catalyst and put it into a wet oxidation reactor for reaction. The reaction temperature is 280°C, the press...
Embodiment 2
[0045] 1. Vector preparation
[0046]Put 132g of finished MWCNTs powder (particle size 30 μm) and 88g finished graphite powder (particle size 30 μm) into a kneader and mix, pour 20g of 15wt% PEG400 aqueous solution and 50g of water for kneading, extruding, and rolling ball molding. Dry at 100° C. for 12 hours to obtain a spherical carrier with a diameter of 3 mm.
[0047] 2. Catalyst preparation
[0048] Mix 198g spherical carrier with 300g RuCl containing 2gRu 3 The methanol solution was mixed for impregnation. Stand at room temperature for 6h, then dry in an oven at 110°C for 16h, and then calcinate in a muffle furnace at 450°C for 2.5h to obtain a catalyst precursor. 400°C in H 2 -N 2 Reduction in the atmosphere for 4h to obtain the catalyst, wherein H 2 :N 2 The volume ratio is 4:96.
[0049] 3. Catalyst evaluation
[0050] Take 100g of catalyst and put it into a wet oxidation reactor for reaction. The reaction temperature is 280°C, the pressure is 9.0MPa, the vo...
Embodiment 3
[0053] 1. Vector preparation
[0054] Put 88g of finished MWCNTs powder (particle size 30 μm) and 132g finished graphite powder (particle size 30 μm) into a kneader and mix them, pour 20g of 15wt% PEG400 aqueous solution and 50g of water, knead, extrude, and roll into balls. Dry at 100° C. for 12 hours to obtain a spherical carrier with a diameter of 3 mm.
[0055] 2. Catalyst preparation
[0056] Mix 198g spherical carrier with 300g RuCl containing 2gRu 3 The methanol solution was mixed for impregnation. Stand at room temperature for 6h, then dry in an oven at 110°C for 16h, and then calcinate in a muffle furnace at 450°C for 2.5h to obtain a catalyst precursor. 400°C in H 2 -N 2 Reduction in the atmosphere for 4h to obtain the catalyst, wherein H 2 :N 2 The volume ratio is 4:96.
[0057] 3. Catalyst evaluation
[0058] Take 100g of catalyst and put it into a wet oxidation reactor for reaction. The reaction temperature is 280°C, the pressure is 9.0MPa, the volume ra...
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