2019 Pittsburgh AISTech

Effect of Coal Mineral Type and Size on Coke Strength After Reaction (Room 403)

Hot and cold strengths of cokes are important for determining value in use of metallurgical coals. Strengths depend on coal rank, inert content and mineral/ash chemistry. For some coals, however, these parameters do not always account for and dictate the actual strengths of their cokes. In this study, various minerals were individually added (1% level) in both coarse and fine sizes to two good coking coals of different origins and rank in a pilot sole-heated oven to determine effects of mineral type and size on coke quality (CSR, CRI, I600, porosity). Main findings of this investigation are discussed.