Upgrading device for increasing oxygen-containing functional groups of activated carbon

A technology of activated carbon and functional groups, applied in water/sludge/sewage treatment, water pollutants, adsorbed water/sewage treatment, etc., can solve problems such as high energy consumption and environmental pollution

Inactive Publication Date: 2020-10-30
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional modification methods generally use methods including acid-base modification, chemical reagent impregnation, and oxidant surface oxidation to increase the number of functional groups on the surface of activated carbon. environmental pollution

Method used

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  • Upgrading device for increasing oxygen-containing functional groups of activated carbon
  • Upgrading device for increasing oxygen-containing functional groups of activated carbon
  • Upgrading device for increasing oxygen-containing functional groups of activated carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 As shown, the upgrading device for adding oxygen-containing functional groups to activated carbon includes a plasma reaction system and an exhaust gas recirculation system. The plasma reaction system includes an insulating box 1 and a high-voltage electrode plate 2 and a grounding electrode plate arranged in the insulating box 1. 4. The high-voltage electrode plate 2 and the grounding electrode plate 4 are arranged parallel to each other. The high-voltage electrode plate 2 is connected to the high-voltage power supply through the high-voltage terminal 3. The grounding electrode plate 4 is grounded through the ground terminal 5. The insulating box 1 is provided with a feed Port 11 and discharge port 12, feed port 11 is connected with feeder 15, discharge port 12 links to each other with cyclone separator 6, and cyclone separator 6 discharging end is connected with activated carbon collection box 7, and also on activated carbon collection box 7 A return b...

Embodiment 2

[0019] The difference between this example and Example 1 is: the discharge voltage is 50kv, the discharge frequency is 10kHz, the input power is 60W, and the phenol adsorption capacity of the obtained activated carbon is 136.6mg / g.

Embodiment 3

[0021] The difference between this example and Example 1 is: the discharge voltage is 50kv, the discharge frequency is 10kHz, the input power is 60W, the treatment time is 15min, and the phenol adsorption capacity of the obtained activated carbon is 146.5mg / g.

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Abstract

The invention discloses an upgrading device for increasing oxygen-containing functional groups of activated carbon. The upgrading device comprises a plasma reaction system. The plasma reaction systemcomprises an insulating box body, and a high-voltage electrode plate and a grounding electrode plate which are arranged in the insulating box body. The high-voltage electrode plate and the grounding electrode plate are arranged in parallel, and the high-voltage electrode plate and the grounding electrode plate are connected with a high-voltage power supply and the ground respectively. A feeding port and a discharging port are formed in the insulating box body, the feeding port is connected with a feeding machine, the discharging port is connected with a cyclone separator, and the discharging end of the cyclone separator is connected with an activated carbon collecting box. Plasma collides with the surface of activated carbon, so that oxygen-containing functional groups on the surface of activated carbon are increased, the adsorption capacity of the activated carbon is remarkably improved, and the phenol adsorption capacity is as high as 146.6 mg / g and is improved by 23.7% compared withthat of untreated activated carbon. The device is simple and compact in structure, convenient to operate, large in plasma treatment area in unit volume, capable of continuously running, high in working efficiency, free of generating pollutants, energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a quality upgrading device, more specifically, to a quality upgrading device for adding oxygen-containing functional groups to activated carbon. Background technique [0002] Activated carbon has a large specific surface area and rich pore structure, and is an excellent adsorbent. It is generally prepared by physical or chemical activation, which is complicated and expensive. Iodine value is an important parameter to evaluate the adsorption capacity of activated carbon. Activated carbon with high iodine value has better adsorption performance. The active adsorption sites on the surface of activated carbon directly affect the adsorption capacity. Modification of activated carbon can effectively increase the adsorption sites on the surface of activated carbon. Traditional modification methods generally use methods including acid-base modification, chemical reagent impregnation, and oxidant surface oxidation to increase the number...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/34
CPCB01J20/20C02F1/281C02F2101/345
Inventor 张会岩王家伟肖睿
Owner SOUTHEAST UNIV
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