High-temperature resistant activated carbon
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Is there any activated carbon that can withstand high temperatures of 600-700 degrees? Generally, since activated carbon contains binders, at this temperature range the binders evaporate, causing the activated carbon to break down into powder. Are there any relevant resources or sales channels? I have a need. Used for phosgene synthesis.
Do you need zero powdering, or is powdering below 3% acceptable? The pulverization rate of the activated carbon we use here at temperatures above 850 degrees is still acceptable!
It is possible under anaerobic conditions. Because the activation temperature for coal-based activated carbon is above 900°C. If oxygen is present, it won’t work; activated carbon with a ignition point above 450°C is still very rare.
Activated carbon fibers should be fine at around 500 degrees in aerobic conditions, and above 2000 degrees in anaerobic conditions. If you need more information, you can consult Liaoning Aoyida New Materials Co., Ltd
Whether aerobic or anaerobic, at this temperature, the surface structure and properties of activated carbon change, which can even directly affect its performance and characteristics. So it’s not entirely clear why you chose this temperature or activated carbon, but I still think you need to consider the process conditions carefully. Personally, I think activated carbon is not suitable at this temperature; if one has to choose, wooden or coconut shell-based activated carbon could be considered. These types of activated carbon do not use adhesives and do not tend to disintegrate into powder
Any activated carbon using physical activation methods (steam activation) is suitable; the reaction temperature for carbon activation is above 950°C, and in the presence of oxygen, it will turn to ash at temperatures over 400°C.
We produce and sell activated carbon, which cannot withstand high temperatures; it will start burning at temperatures above 500 degrees. You might want to learn more about refractory materials.
Whether aerobic or anaerobic, at this temperature, the surface structure and properties of activated carbon change, which can even directly affect its performance and characteristics. Generally, tar and other binding substances are added during the molding process of granular activated carbon; at temperatures of 600-700 degrees, the activated carbon will definitely undergo changes. The activation temperature for activated carbon is around 950 degrees, while its ignition point is generally around 400 degrees; therefore, at this temperature, activated carbon made from coal, coconut shells, or wood will all catch fire. If there are any issues regarding activated carbon, we can exchange ideas with each other. I work in the activated carbon industry.