Abstract:

Maceral and microlithotype of seven coking coal samples，and the microstructure of their corresponding coke are analyzed.It is found that well distributed mineral is good to coke forming，while lump or large particles of mineral have bad effect to coke forming.Coking coal with high ash content and fat coal，if with high proportion of carbominerite and low minerite，have good coking property，and can be used as blends for coke production.Comparatively，the proportion of carbominerite in gas coal and lean coal has little effect on their coking property.