Abstract:According to Liebig method of GB/T476—2008 “Determination of carbon and hydrogen in coal”, the determination of hydrogen was introduced in this paper, and the affection of hydrogen determination by Liebig method without lead chromate and silver thread roll in combustion tube was verified too. The statistical analysis of test data showed that determination of hydrogen by Liebig method wasn’ t affected without dechlorination agent and sulfur removal agent in combustion tube.

Abstract:The general situation of Pingshan coalfield in Guizhou province was expounded, according to the physical properties of coal, coal lithotypes and the degree of coal metamorphism, the coal quality characteristics and variable rules of workable coal seams were analyzed systematically.The relationship between the sedimentary environment and the content of ash and sulfur etc. were discussed.The sulfur content of coal decreased gradually from southeast to northwest and was band distributed irregularly, its using aspects was put forward primarily in this paper.