Slack coal
This article examines slack coal — a term used in coal-producing regions to describe the small pieces, fragments and fines that remain after mining and initial processing. Although often treated…
Formed coal blocks
Formed coal blocks are an engineered form of solid fuel made by compressing or agglomerating coal fines and other binders into uniform, handleable pieces. Widely used for domestic heating, industrial…
Reconstituted coal
Reconstituted coal is a manufactured solid fuel produced by agglomerating or otherwise processing coal particles and wastes into a uniform, transportable, and often higher-value product. It sits at the intersection…
Hydrothermal carbonized coal
Hydrothermal carbonized coal (often referred to as hydrochar when produced from biomass, or as hydrothermally upgraded coal when applied to low-rank coals) is a product of a wet, moderate-temperature thermochemical…
Coal fines
This article examines the often-overlooked fraction of coal known as coal fines — the small particles and powdered material generated during mining, handling, crushing and processing of coal. Coal fines…
