| 摘要 |
PROBLEM TO BE SOLVED: To provide a coal fuel in which coal mixing efficiency and ash adhesion properties can be suppressed and a dry load in a mill can be reduced, and included in a coal mixed fuel having a high heating value.SOLUTION: Provided is a coal fuel obtained, when, from slurry obtained by mixing and heating coal and a solvent, a solution part including a coal component soluble in the solvent is separated, by evaporating away the solvent, also, the ratio of a basic component to an acidic component included in an ash content is below 0.12, the content of moisture is 8 wt.% or lower, and also, the ash content amount is 17 to 25%. |
