Development Status of Lignite Quality Improvement Technology

China has rich lignite resource, which has high moisture, low calorific value, short ignition period, etc. These characters limit lignite large-scale processing, utilization and transport also become difficult.Therefore, under our country's coal-dominated energy structure, lignite quality improvement technology can enhance the development and application for optimizing the energy structure. This paper will also introduce the development status of lignite quality improvement technology at home and abroad, and then give some insights for the future using of lignite.