Gasification reactivities of cokes derived from athabasca bitumen

Gasification reactivities of cokes obtained from Athabasca bitumen by delayed coking and fluid coking were compared in fixed and fluidized bed systems. In both systems the C + O₂ reaction accounted for the most of converted carbon. The C + H₂O reaction proceeded to a smaller extent. The bulk reactivity of the fluid coke was higher than that of delayed coke, when comparing ?20 to +60 mesh particles in fluidized bed and ?14 to +20 mesh particles in fixed bed, respectively. However, the reactivity of the delayed coke expressed per unit of surface area was markedly higher than that of the fluid coke.