29. Production of Activated Carbon of High Strength from pre-Oxidated Bituminous Coal

Abstract

The possibility to produce activated carbon of high strength from coal without any binders was examined. To do so, oxidation treatment at 250 to 270℃ and hot briquetting below 500℃ and 10MPa were performed before carbonization and activation of bituminous coals. It was found that 1h of oxidation at 250℃ was enough to maximize the BET surface area, the crash strength and the packed density. For Peakdowns Highway, the BET surface area increased from 470 to 870m^2/g and the crash strength increased from 2 to 12MPa, by oxidation pretreatment.