Method for preparing activated carbon from Hunan camellia oleifera shells, activated carbon and application of activated carbon
A technology for preparing activated carbon and Camellia oleifera, which is applied to the removal of solid waste and hybrid capacitor electrodes, can solve problems such as high cost, serious environmental pollution, and low product quality, and achieve the effects of reducing concentration, protecting the environment, and reducing production costs
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Embodiment 1
[0029] The method for preparing activated carbon by utilizing the husk of Camellia oleifera provided by the present embodiment comprises the following steps:
[0030] a. Dry the husk of Camellia oleifera at 250°C, crush it to a certain particle size, and pass it through a 20-mesh sieve for later use.
[0031] b. Soak 20-mesh Camellia oleifera shell powder and 2% KOH in a mass ratio of 1:4 at a temperature of 70°C for 24 hours.
[0032] c. The soaked Camellia oleifera husk powder is activated once by microwave, the temperature of the first activation is 200° C., and the time is 2 hours.
[0033] d. Carbonize the once-activated oleifera husk powder with a carbonization furnace at a temperature of 700°C for 2 hours; then pulverize it with a pair of rollers, and then further pulverize it with a ball mill to obtain carbon powder with a particle size range of 4-7 μm .
[0034] e. The above-mentioned carbon powder is deashed by microwave heating with 0.5% hydrochloric acid at a tem...
Embodiment 2
[0038] The method for preparing activated carbon by utilizing the husk of Camellia oleifera provided by the present embodiment comprises the following steps:
[0039] a. Dry the husk of Camellia oleifera at 250°C, crush it to a certain particle size, and pass it through a 50-mesh sieve for later use.
[0040] b. Soak 50 mesh of Camellia oleifera shell powder and 3% KOH in a mass ratio of 1:1 at a temperature of 90°C for 7 hours.
[0041] c. The soaked Camellia oleifera shell powder is activated once by microwave, the temperature of the first activation is 450°C, and the time is 0.5h.
[0042] d. Carbonize the Xiang oleifera husk powder after the first activation in a carbonization furnace at a temperature of 900°C for 0.5 h; then pulverize it with a pair of rollers, and then further pulverize it with a ball mill to obtain charcoal with a particle size range of 4-8 μm pink.
[0043] e. The above-mentioned charcoal powder is deashed by microwave heating with 2% hydrochloric ac...
Embodiment 3
[0047] The method for preparing activated carbon by utilizing the husk of Camellia oleifera provided by the present embodiment comprises the following steps:
[0048] a. Dry the husk of Camellia oleifera at 250°C, crush it to a certain particle size, and pass it through a 100-mesh sieve for later use.
[0049] b. Impregnate 100 mesh of Camellia oleifera shell powder and 5% KOH in a mass ratio of 1:2 at a temperature of 80°C for 18 hours.
[0050] c. The soaked Camellia oleifera husk powder is activated once by microwave, the temperature of the first activation is 200° C., and the time is 1 h.
[0051] d. Carbonize the primary activated raw material in a carbonization furnace at a temperature of 700°C for 1.5 hours; then pulverize it with a double-roller machine, and then further pulverize it with a ball mill to obtain carbon powder with a particle size range of 4-7 μm.
[0052] e. The above-mentioned carbon powder is deashed by microwave heating with 0.5% hydrochloric acid at...
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