No.7 Effect of high performance caking additive on coke strength after reaction

Abstract

We participate in a NEDO project called C0URSE50 (CO_2 Ultimate Reduction in Steelmaking process by innovative technology for cool Earth 50), in which we aim to apply HPC as a caking additive to make high strength coke for the blast furnace, which maximize the use of hydrogen as a reductant, in order to minimize carbon addition to the furnace. In this study, we investigated the effect of HPC addition on coke strength after reaction using spherical coke. Coke strength after reaction tended to be higher by HPC addition in both reactions of Boudouard reaction and water gas reaction at the same reaction conversion. Those effects were confirmed by measurement of the coke diameter after reaction.