Evaluation on gasification and liquefaction performance for No.5-2 coal seam and its coal quality characteristics in Shenfu Mining Area

In order to find out the best way of utilizing coal resources with different coal quality, taking No.5-2 coal seam of Shenfu Mining Area as study objects, the characteristics of coal rock and coal quality are systematically analyzed by means of the proximate analysis and macerals of coal and rock testing. On this basis, in combination with the established gasification coal and liquefaction coal evaluation index system, the best utilization mode of No.5-2 coal seam is evaluated. The results show that coal has the characteristics of low ash, low sulfur, high volatile, good thermal stability, low adhesion, high grindability index and lower ash melting point in Shenfu Mining Area, the whole area of coal meet the first rank indicators of the fixed bed solid-state slagging gasification and entrained flow gasification,can be used as high-quality gasification coal. The coal quality of partial areas in Sunjiacha,Ningtiaota,Guojiawan,Hongliuta and Shagoucha coalfield meets the secondary rank indicators of liquefaction coal，can be used as ordinary direct liquefaction of coal.