Research on fat coal quality difference

The comparisons of fat coal from Shandong Province, Shanxi Province, Anhui Province through proximate analysis, plastometric indices, Gieseler fluidity, Arnu-Audibert's dilatometer, coke optical texture of single coal are studied. It's pointed out that it's not enough just by proximate analysis, plastometric indices to evaluate fat coal quality. They are quite different in the aspects of Gieseler fluidity, Arnu-Audibert's dilatometer, coke optical texture of single coal and every index of fat coal should be analyzed synthetically.