Columnar activated carbon always to carry out a carbonization process, no matter what type will encounter, many users may ask columnar activated carbon how to carbonize activities? The following is an introduction to this problem:

1. There is a pre-carbonization process before carbonization, and then the process of carbonization. The pre-carbonization process is when the temperature rises to the corresponding temperature, and then the thermal decomposition reaction of the coconut shell becomes obvious, and the chemical composition of the raw material begins to change, which has unstable components.

2. The water precipitation stage mainly includes the precipitation of free water and physical adsorption water in waste activated carbon. The temperature range is 50℃-150℃, accompanied by weight loss of 5%. At 80℃ to 240℃, the binding water of cellulose and lignin molecules escapes.

Columnar activated carbon

3. The pyrolysis stage of columnar activated carbon is between 240℃ and 400℃. In this stage, thermal decomposition of cellulose and lignin occurs, and the break of C2O and C2C bonds will release CO2, CO and other gases. From the glass transition temperature of 255℃ to the high temperature of lignin pyrolysis of 360 ℃, the weight loss of activated carbon as a whole reached 68 percent. Above 400 degrees, polycyclic compounds begin to form.

Columnaceous activated carbon in the process of carbonization temperature will also slowly rise, in general, the operation of carbonization, for the overall quality, can be said to have a good effect.