'New Analytical Methods to Determine Calcined Coke Porosity, Shape, and Size'

摘要

Carbon Anode properties especially density are dependent on thestructure and porosity of calcined coke used to fabricate theanode. Optimum anode density is produced from blendingtogether natural, rolled, and crushed calcined coke with theirinherent structure and porosity characteristics.Two tests were developed to characterize the particle shapeincluding internal and between particle porosity. The first methodis a novel technique developed by Fluid Imaging of suspendingparticles in a moving fluid during which a high speed camera isused to obtain a silhouetted outline of the particle shape and size.Secondly, using traditional optical microscopy techniques andimage analysis, internal porosity of the calcined coke wasdetermined. The results of the two methods are presented andcompared with evaluation techniques found in literature. Thesetechniques were used to obtain a better understanding of theCalcined Coke VBD - Porosity Paradox presented in a companionpaper.