Influence of Crushing Technology and Particle Shape on the Bulk Density of Anode Grade Petroleum Coke

摘要

Bulk density is a key property of anode grade petroleum coke used in aluminum smelting and many studies have been undertaken on this parameter. Although particle shape has been considered to influence coke bulk density (and hence baked anode density) in general terms, this relationship and its importance has not been detailed in studies to date. A correlation is presented showing that particle shape (i.e. sphericity and convexity) has a significant influence on coke bulk density. To gain additional insight into practical plant applicability of the testing, six different laboratory crushing methods were used to crush a single source coke and produce a range of particle shapes. This paper describes the study and results obtained, looks at the implications of the results, and outlines further studies being undertaken.