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Activated carbon is made by causing a carbon-based substance, such as coconut shells or coal, to react with a gas or chemical at high temperatures. It has micropores ranging from 10 to 200Å (10Å = 1nm) in diameter. Kuraray began producing activated carbon (KURARAY COAL™) in 1965. The micropores of the activated carbon form a meshwork structure inside the carbon, so the micropore walls have a large surface area (500-2500m2/g), and various substrates can be adsorbed on the surface.
Applications and Usages
1. Gas and vapor phase
Filters for deodorant, cigarette filters, air purification, masks for deodorizing, gas masks, removal of odor and toxic gas, purification of source and produced gas, solvent recovery, removal of sulfurous acid gas and hydrogen sulfide, ozonolysis, prevention of gasoline vapor dispersion