Effect of 0–1 mm pulverized coal on desulfurization and upgrading of low grade lignite in dry cascade separation bed with compound force field
Fuel（2022）
Abstract
•A new dry beneficiation technology for 0–50 mm low grade lignite was proposed.•Innovatively studied the functions of the 0–1 mm coal powder autogenous medium.•Different functional areas of the bed were determined.•Low grade lignite can be effectively upgraded by the new dry upgrading process.
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Key words
Compound force field dry cascade separation bed,Desulfurization and ash reduction,Authogeous medium,Low grade lignite,Dry upgrade
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