METHOD FOR BRIQUETTING COKE DUST WITH BINDING PITCH OBTAINED FROM COAL BY THERMAL DISSOLUTION IN ANTHRACENE FRACTION Russian patent published in 2024 - IPC C10L5/00 C10L5/06 C10L5/10 C10L5/28 C10C3/00 

FIELD: various technological processes.

SUBSTANCE: invention relates to a method for briquetting coke dust with a binder pitch obtained from coal by thermal dissolution in an anthracene fraction, comprising mixing crushed solid fuel with a binder, briquetting the mixture under pressure, in which crushed solid fuel used is coke dust preliminarily enriched by oil agglomeration to ash content of 4.8.0–6.5 wt.% and sulphur content of 0.05 wt.%, binder used is pitch obtained by thermal dissolution of coal in anthracene fraction, in amount of 4.0–6.0% of weight of initial concentrate, heated to 100–130 °C, briquetting of the mixture under pressure is carried out in steps, for which a load is first set to 5–6 atm with holding for 3–5 minutes and then up to 15 atm with holding at maximum load for 3–5 minutes.

EFFECT: invention ensures reduction of energy and economic costs, as well as obtaining fuel briquettes with low ash content and sulphur content.

1 cl, 4 tbl, 3 ex