Torrefied coal
This article describes the nature, production, distribution and significance of torrefied coal — an upgraded solid fuel produced by thermal treatment — and explains where feedstocks and conventional coal occur,…
Coal briquettes
This article explores the world of coal briquettes: what they are, where the raw coal comes from, how briquettes are produced and used, and their economic, industrial and environmental significance.…
Crushed coal
Crushed coal is a widely used form of fossil fuel obtained by mechanically reducing the size of mined coal to meet the requirements of various industrial processes. This article examines…
Power-station coal
This article examines the coal used in large-scale electricity generation — commonly called power-station or thermal coal — its geological occurrence, mining and processing, economic and trade dynamics, role in…
Heating coal
Heating coal plays a continuing and complex role in the modern energy system. This article explores the geological occurrence, mining and processing, global production and trade, economic importance, industrial uses,…
Gas coal
This article explores the nature, distribution, economic importance and industrial uses of gas coal — a form of coal with distinctive physical and chemical properties that make it valuable for…
H-grade coal
This article examines H-grade coal — a term often used in industry to denote higher-quality coal with significant heat output and specific properties that make it valuable for energy and…
Thermal PCI coal
Thermal PCI coal occupies a specific and growing niche at the intersection of the energy and steel industries. Often referred to simply as PCI coal (Pulverized Coal Injection coal), this…
Short-flame coal
Short-flame coal is a distinct category within the broad family of coals, recognized in some regions and markets for its specific combustion behavior and material properties. This article explores what…
Long-flame coal
Long-flame coal is a historically important and still widely used category of coal characterized by its distinctive burning behavior, broad occurrence in many coal basins, and versatile industrial applications. This…
