7TH EUROPEAN COKE AND IRONMAKING CONGRESS - ECIC 2016

In this study, a novel measurement method for coal thermoplasticity was developed, where permeation distance of thermally plastic coal into glass beads layer placed on the coal sample was measured. The permeation distance was roughly correlated with MF, however large deviation was observed especially for high fluidity coals. The deviation clearly showed the difference of coke pore structure and strength after carbonization although the differences cannot be detected by conventional Gieseler plastometer method. Therefore, the coal evaluation method and prediction model of coke strength can be upgraded more accurately by integrating the new method into the MOF diagram system. Through the application of new theory, improvement of coke-quality control was achieved at commercial coke plant.