Device and method for modifying activated carbon adsorbent by using rotating low-temperature plasma
A low-temperature plasma and activated carbon adsorption technology, which is applied in the field of plasma modified activated carbon adsorbents, can solve problems such as destruction and atmospheric environmental pollution, and achieve the effects of simple process, improved breakthrough time, and mature preparation conditions
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[0038] Example 1:
[0039] (1) figure 2 It is a scanning electron micrograph of the original coconut shell activated carbon AC. The coconut shell activated carbon AC is screened before use and sieved with 10 to 16 meshes. The resulting activated carbon is placed in a beaker containing approximately twice the volume of the activated carbon with deionized water. Place it in a numerically controlled ultrasonic cleaner containing an aqueous solution, ultrasonically at room temperature for 20 minutes to remove the powder and oily substances in the activated carbon, wash with deionized water, filter with suction, and dry at 105°C;
[0040] (2) Weigh 10g (1) of the activated carbon in the discharge area of the reactor, assemble it completely, and check the airtightness of the inlet and outlet of the reactor;
[0041] (3) Pass in 50ml / min of N 2 And turn on the motor to make it rotate for 4~5min, and then adjust the frequency (100~300Hz), voltage (15~25KV) and response time (5~15min) of t...
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[0042] Example 2:
[0043] (1) Screen the coconut shell activated carbon AC before use, sieving with 10 to 16 meshes, and place the resulting activated carbon in a beaker containing deionized water twice the volume of the activated carbon, and place it in an aqueous solution. In a CNC ultrasonic cleaner, ultrasonic for 20min at room temperature to remove the powder and oily substances in the activated carbon, wash with deionized water, suction filter, dry at 105°C, soak in 1mol / L hydrochloric acid solution for 12h, and wash with deionized water to neutral. Dry at 105°C;
[0044] (2) Weigh 10g (1) of the activated carbon in the discharge area of the reactor, assemble it completely, and check the airtightness of the inlet and outlet of the reactor;
[0045] (3) Pass in 50ml / min of air and turn on the motor to rotate for 4~5min, and then adjust the frequency (100~300Hz), voltage (15~25KV) and response time (5~15min) of the AC power supply to obtain the air Activated carbon under the...
Example Embodiment
[0046] Example 3:
[0047] (1) Screen the coconut shell activated carbon AC before use, sieving with 10 to 16 meshes, and place the resulting activated carbon in a beaker containing deionized water twice the volume of the activated carbon, and place it in an aqueous solution. In a digitally controlled ultrasonic cleaner, ultrasonic for 20 minutes at room temperature to remove the powder and oily substances in the activated carbon, wash with deionized water, filter with suction, and dry at 105°C;
[0048] (2) Weigh 10g (1) of the activated carbon in the discharge area of the reactor, assemble it completely, and check the airtightness of the inlet and outlet of the reactor;
[0049] (3) Enter 50ml / min of CO 2 And start the motor to make it rotate for 4~5min, and then adjust the frequency (100~300Hz), voltage (15~25KV) and response time (5~15min) of the AC power supply, and then get CO 2 Activated carbon under the best conditions for modification in the atmosphere, the best condition ...
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