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Lignite is composed of organic matter, minerals and water. Organic matter is mainly composed of five elements: carbon, hydrogen, oxygen, nitrogen and sulfur. Minerals in lignite, water and oxygen in organic matter do not contribute to the heat release process of combustion. Compared with other coal types, lignite has a high moisture content (total moisture is up to -%) and a high oxygen content (about % of organic matter), so its calorific value is low. If the water and oxygen in lignite are removed or partially removed, the calorific value, utilization range or utilization efficiency of lignite can be improved. That is to say, the quality of lignite is improved. Lignite upgrading refers to the process of improving the quality of lignite through physical or chemical methods. Including drying (forming) upgrading, pyrolysis (retorting) upgrading and other special methods for upgrading. Ounuo keeps its integrity and guarantees quality. All models provide try before you buy. There are many large-scale production sites for users to visit. Everything is done with users in mind. Uno heavy industry information phone number: -Mobile phone: