关键词: 褐煤, 胜利煤田, 腐植酸钠, 煤炭清洁利用

Abstract: Shengli Coalfield is located in the northern suburbs of Xilinhot. It contains 342 square kilometers of coal and has proven reserves of 15.932 billion tons. It is the largest brown coal field in the country with the thickest coal seam. Lignite has low heat, poor thermal stability, strong chemical reactivity, easy weathering in the air, difficult to store and transport, and serious air pollution during combustion. This paper mainly analyzes the content of moisture, ash, volatile content, calorific content and humic acid of coal in the mining area. And these lignite resources with low calorific value are used as raw materials to develop sodium humic acid products which have broad application prospects in agricultural, animal husbandry and industrial wastewater treatment. This technology can help to achieve clean utilization of lignite resources.

Key words: lignite, Shengli coalfield, sodium humate, clean utilization of coal