常州光催化废气处理技术中心

Principle of regeneration of activated carbon:
Using hot air to purge and adsorb saturated activated carbon, the organic matter adsorbed on the surface of the activated carbon can be separated from the surface of the activated carbon, and the activated carbon can be desorbed and regenerated. By controlling the temperature and flow of the desorbed gas, the concentration of organic matter in the desorption gas can be concentrated to a suitable concentration, the desorption gas flow through the catalytic heating device in the catalytic bed heating to 300 ℃, the catalyst under the action of the catalyst, the catalytic combustion process can achieve more than 95 % of the human, after combustion the water and carbon dioxide generated and released a lot of heat, the gas temperature rise, the hot air part of the direct air to the atmosphere; The other part is circulated to the preheating chamber, and the air is mixed with cold air from the preheated outdoor air for the use of activated carbon desorption gas. It is necessary to start the electric heater for 1 ~ 2 hours in the process of desorption catalytic combustion. After the heat balance is reached, the electric heating device can be closed. the regenerative treatment system relies on the organic solvent in the desorption gas to make fuel, and the regeneration process can reach the zi cycle without additional energy, greatly reducing energy consumption and producing no secondary pollution. 
Description of process flow:
The regenerated blower is heated by the catalytic bed, and the heated air enters the activated carbon bed through the electric valve, the activated carbon is separated from the surface of the activated carbon, and then enters the catalytic bed with the gas. the catalyst in the catalytic bed is decomposed into water and carbon dioxide, at the same time, the gas temperature is further increased, the heat exchanger in the high temperature gas catalytic bed is partially recovered after partial heat recovery, and partly through the electric valve, the other part enters the activated carbon layer through the electric valve, and the activated carbon is regenerated. By adjusting the opening degree between the electric valve, however, the desorption temperature of the activated carbon is maintained at a temperature range. In addition, by controlling the desorption temperature and the flow rate of the fan, the concentration of the organic matter in the regeneration gas can be controlled within a suitable range, the heat of the combustion heat can maintain the heat required for the operation of the system, at this time, the electric heating in the catalytic bed can be stopped, and the system uses the regenerated organic matter combustion to maintain the operation and save the running cost. 
Characteristics of activated carbon regeneration equipment:
1. the regeneration process of activated carbon is simple, the device is a set of preheater, desorption box, blower, catalytic reactor and control electric cabinet in one, with the characteristics of compact structure, less floor space and beautiful appearance; 
2. hot air circulation is used in desorption, which has the advantages of high desorption efficiency and low energy consumption. 
3. the desorption gas is purified by catalytic combustion and has the characteristics of high purification efficiency and no secondary pollution; 
4. simple operation, easy maintenance and convenient transportation; 
Scope of application
It can be widely used for the desorption of activated carbon ( granular, honeycomb and activated carbon fiber ) of benzene, ketones, alcohols, aldehydes, ethers, etc.