Abstract:
In order to realize the clean and efficient utilization of coal resources in Xinjiang, the Aidinghu mining area in Xinjiang is chosen as the research area.The systematical analysis of coal rock and coal quality characteristics of 6 coal seams in the mining area are conducted analyzed, including the ash, volatile matter,
H/
C and sulfur contour, and the impact of the variations of these indexes on gasification and direct liquefaction are analyzed.On the basis of the evaluation index system of coal for gasification and direct liquefaction, the clean utilization mode of coal is proposed.The results show that the coal quality in the coal area of Aidinghu has the characteristics of low ash, low sulfur, high volatile matter, low ash fusion point and high grindability index.Among which, the No.1 exploration area and Gangou coal mine exploration area meet the requirement of the first level coal quality evaluation index for liquefaction, and could be used as high quality coal for liquefaction.While No.2 exploration area, No.3 exploration area and No.4 exploration area are classified as the second level coal quality evaluation index for liquefaction due to ash content, and could be used as general liquefaction coal.The southeast region of the No.2 exploration area comply with the second level coal quality evaluation index for dry pulverized coal entrained-flow gasification, and could be used as gasification coal.