Influence of coal grain composition and maceral associations on fluidity development during the coking process
2022-06-30 15:35 - 16:00 | Room „Danzig“
Maceral composition is one of the key parameters used to assess coals and to predict coke quality. However, coal grains are often a mixture of different macerals and mineral matters. The development of fluidity in coal grains depends on grain size and the degree of maceral association. It is important to determine the composition of coal grains to understand the fluidity drivers. Coal Grain Analysis (CGA) was used in this study to determine the maceral compositional information of individual coal grains for 4 metallurgical coals varying in rank and maceral composition. The thermoplastic behaviour of coal samples was tested using a Gieseler plastometer and the custom-designed permeability/dilatation testing apparatus and a 4kg dual-heated coke oven.
