Do you know what is activated carbon activation treatment? In fact, the so-called“Activated carbon activation treatment” refers to the production process, so that coconut shell carbon more adsorption, but whether the product through the“Activation treatment” with the naked eye is difficult to tell, generally only according to the characteristics of the product to be identified, then the activated carbon activation process what are the factors? The following by Jiangsu activated carbon activation factory-shangding environmental science and technology to take you to understand.
The influence of the flow rate and concentration of the activator: the flow rate of the activator is large, and the reaction rate of the activator with the carbon is added, so that the loss rate of ignition is added, and the non-uniform activation occurs, which results in the reduction of the micropores, therefore, the proper flow rate of activator is one of the factors to ensure the quality of activated carbon. The relationship between the amount of water vapor and the activation time, the concentration of CO2 can be doubled when the activation temperature is from 850 ° C to 930 ° C, and CO2 is used as activation medium, its concentration progress can accelerate the response speed.
Effect of carbonization temperature: the coal carbonization temperature directly affects the pore structure and strength of the carbonized material, that is, it affects the properties of semi-coke, especially the final temperature, the final temperature of carbonization is too high, it can form carbonized material surface shorten and form easy graphitized carbon layer, and form activation difficulty to add.
The effect of the type of activator on the activation process the relative rate of reaction of gasification and incineration of carbon (800 ° C, 10.1 KPA-RRB- at the same temperature, different activator chemical property have different reaction rates with carbon, compared with the relative rate of activation of air, water vapor and carbon dioxide, for example, carbon and oxygen have a faster response rate, and the activation temperature only needs about 600 ° C, while water vapor needs 800-950 ° C, because the water vapor can be fully dispersed into the micro-pores of carbon, so that activation reaction can be carried out uniformly throughout the carbon particles, so that a larger than the surface area, adsorption capacity of activated carbon, in general, the activation of CO2 and steam as activator is better.
Activation temperature effect: activation is the reaction of carbon and activator at high temperature. As the temperature increases, the reaction speed accelerates and the activation rate increases, under the different activation temperature, the activated carbon pore structure is different, the activation temperature is too high, the micropore is cut down, the adsorption force is reduced, the activation temperature of the general water vapor activation method is controlled at 800-950 ° C, the activation temperature of flue gas should be controlled at 900-950 ° C, the activation temperature of air should be controlled at about 600 ° C, and the activation temperature of Taixi coal should be controlled at 930-950 ° C, the higher activation temperature, the lower the demand of steam, the higher the activation rate.
Different coal, carbon content, oxygen content, hydrogen content is different, ash, evaporation content is different, coal chemical structure is different, charring properties are different, at a certain temperature, the activation temperature of anthracite is 20-30 ° C higher than that of bituminous coal because the activation process is slightly different with different coal.
The above is Jiangsu activated carbon activation factory-shangding environmental science and technology to share the factors that affect the activated carbon activation process, I hope to help you. If you want to know more relevant information, welcome to pay attention to, Shangding environmental technology (Jiangsu) Co. , Ltd. , we will be happy to serve you! Welcome new and old customers to consult!
