Classification and evaluation of the high quality coal in Ordos Basin

There are high quality coal resources in Jurassic strata of Ordos Basin.On the basis of coal-forming geological condition,coal petrology,coal quality and technological properties,coal resources are classified and evaluated.Coal classification and evaluation system and project are established by selecting 4 basic elements,12 analysis index and 19 technical parameters.The concept of "First unitilization project" is defined,in order to provide for technicial service in effective cleaning unilization of high quality coal.