powdered activated carbon;Cylindrical Coal-base Activated Carbon;Granular Coal-base Activated Carbon. Activated CarbonSymbolClassification and GB No.ApplicationLGranular AC from coal for desulfurization GB/T7701.-1997To be used for removal of ... benzene, toluene, xylene, ethanol, ethers, gasoline, chloroform, carbon tetrachloride, etc.ZGranular AC from coal to be used as catalyst carrier or catalyst ...