由于褐煤存在高水分、高灰分、低发热量、易于风化和自燃的缺陷,致使其加工利用受到限制,为高效利用丰富的褐煤资源,减小褐煤利用过程中产生的环境问题,针对国内外在褐煤干燥脱水、成型和热解方面的提质研究,综述了国内外褐煤蒸发和非蒸发脱水干燥脱水技术、无黏结剂和有黏结剂成型提质技术以及热解提质技术的研究现状,并对我国褐煤提质加工技术的研究方向进行了探讨。

Due to the high water content, high ash content, low calorific value, easy weathering and spontaneous combustion shortages existed in the lignite, the pr ocessing and uillization of the lignite was restricted.In order to high efficiently utilize the rich lignite resources and to reduce the environment problems occurred from th e uilization of the lignite, according to the study on the lignite drying and dewatering, briqueting and pyrolysis upgrading at home and abroad, the paper stated the rese arch status of the lignite evaporation and non-evaporation dewatering technology, non-binder and binder briqueting upgrading technology and pyrolysis upgrading techn ology at home and abroad. Finally, the paper had a discussion on the research orientation of the lignite upgrading and processing technology in China.