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Honeycom bactivated carbon desorption is to create conditions corresponding to low loads, introduce substances or energy, so that the force between the adsorbate molecules and the activated carbon is weakened or disappeared, thereby removing the reversible adsorbate.
There are two commonly used desorption methods, namely decompression desorption and heating desorption. Desorption by heating is common, such as high-temperature steam desorption, nitrogen desorption and inert gas desorption. To completely desorb the adsorbed solvent, a large amount of steam is required, which increases the operating cost.
If the amount of steam is controlled, the residual amount of solvent will increase, and the effective adsorption capacity of honeycomb activated carbon will decrease. activated carbon saudi arabia At the same time, it is easy to cause solvent volatilization in the desorption drying section, which will cause the emission of pollutants to exceed the standard. The pressure swing desorption temperature can be unchanged, generally after 48 hours of adsorption, decompression or vacuum desorption 30min.
The principle of the thermal regeneration method is: under heating conditions, the adsorbed organic matter is eliminated from the Honeycom bactivated carbon substrate in the form of analysis, carbonization, and oxidation. The initial desorption temperature of honeycomb activated carbon is about 80-90℃, but the desorption time needs to be longer. As the number of uses of honeycomb activated carbon increases, the desorption temperature gradually increases, but it should not exceed 130℃. Yes, the desorption gas entering the honeycomb activated carbon layer must have a flame arrestor. coconut shell activated carbon Granular activated carbon Powdered activated carbonPellet activated carbon
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