Abstract:

The analogue coke reactivity and coke strength after reaction were adopted, the relation between thermal properties and microstructures of coke produced from single coal with different metamorphism was studied. The coke produced from medium rank of coal such as coking coal, fat coal and lean coal had higher anisotropy, however the coke produced from low rank gas coal, 1/3 coking coal and higher rank meager coal had lower anisotropy. The coke thermal properties and coke anisotropy had good correlation, the coke reactivity was reduced with the increase of anisotropy, while coke strength after reaction was increased with the increase of anisotropy.