Optical coupling microwave catalytic system applied to biomass pyrolysis and biomass pyrolysis equipment
A technology of biomass pyrolysis and microwave catalysis, which is applied in the direction of catalytic treatment of combustible gases, catalyst activation/preparation, preparation of liquid hydrocarbon mixtures, etc., to achieve efficient utilization, improve quality, and reduce production costs.
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[0042] More specifically, the catalytic plate is prepared by loading a layer of deoxidation catalyst on the surface of porous foam ceramics, and then dispersing and loading a layer of photocatalyst on the outer layer of the deoxidation catalyst. The specific preparation method is as follows:
[0043] (1) Preparation of porous ceramic foam: After mixing SiC and TiC in proportion, mix them by low-speed ball milling for 0.5-2 hours to prepare ceramic aggregate; mix ceramic aggregate and aluminum dihydrogen phosphate according to 1:1-4:1 and add kaolin and Prepare the slurry with deionized water; stir and mix the slurry at room temperature for 12-48 hours; add deionized water according to the solid content of the slurry at 60-80%.
[0044] (2) After cutting the polyurethane foam into the required shape and size, soak it with 8%-20% sodium hydroxide solution and rub it for 1-3 hours, then wash it and then impregnate it with 0.5%-3% sodium carboxymethyl cellulose solution Standby afte...
Embodiment 1
[0054] In the catalytic plate preparation step (1), the ratio of SiC to TiC is 1:0, the ball milling time is 1 hour, the ratio of ceramic aggregate to aluminum dihydrogen phosphate is 2:1, the solid content of the slurry is 80%, and the time for trapping It was 24 hours; the sodium hydroxide concentration was 16% in the step (2), the soaking time was 2 hours, the sodium carboxymethyl cellulose solution concentration was 2%, and the soaking time was 2 hours; the preform was dried at room temperature in the step (4) After 24 hours, dry in an oven for 12 hours, and the final temperature of calcination is 1200°C; the compound raw materials in step (5) are magnesium oxide and aluminum oxide mixed at 10:1 and ball milled for 1 hour, 0.2 parts of polyvinyl alcohol, carboxymethyl cellulose 0.5 part, 0.5 part of alkaline silica sol, the solid content rate of the slurry is 55%; the drying time at room temperature is 18 hours each time after the ceramic foam is slurryed in the step (6), a...
Embodiment 2
[0059] In the catalytic plate preparation step (1), the ratio of SiC to TiC is 1:0, the ball milling time is 1 hour, the ratio of ceramic aggregate to aluminum dihydrogen phosphate is 2:1, the solid content of the slurry is 80%, and the time for trapping It was 24 hours; the sodium hydroxide concentration was 16% in the step (2), the soaking time was 2 hours, the sodium carboxymethyl cellulose solution concentration was 2%, and the soaking time was 2 hours; the preform was dried at room temperature in the step (4) After 24 hours, dry in an oven for 12 hours, and the final temperature of calcination is 1200°C; the compound raw materials in step (5) are magnesium oxide, calcium oxide and aluminum oxide mixed and ball milled for 1 hour according to 5:5:1, 0.2 parts of polyvinyl alcohol, 0.5 part of carboxymethyl cellulose, 0.5 part of alkaline silica sol, the solid content rate of the slurry is 55%; the drying time at room temperature is 18 hours each time after the foam ceramics ...
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