Dry steam coal
This article explores the characteristics, occurrence, economic importance and industrial role of dry steam coal — a variety of coal primarily used for heat and power generation. Dry steam coal…
Fat coal
Fat coal — a traditional term used in many coal-producing countries — denotes a high-quality type of coal valued for its energy content and physical behavior during heating. Often associated…
Lignite
This article explores lignite — the lowest-rank form of coal often called “brown coal” — examining its geological origins, physical and chemical properties, where it occurs and is mined, its…
Low-volatile bituminous coal
Low-volatile bituminous coal is a high-rank coal grade prized for its elevated carbon content, strong coking properties and relatively low volatile matter. This article examines its geological characteristics, global distribution,…
Medium-volatile bituminous coal
Medium-volatile bituminous coal is a widely used and geologically important type of hard coal that sits in the mid-range of the coal rank scale. It combines relatively high fixed carbon…
High-volatile bituminous coal
High-volatile bituminous coal occupies an important place among the ranks of coal used around the world. This article summarizes its geological characteristics, where it occurs and is mined, economic and…
Bituminous coal
Bituminous coal is one of the most important and widely used ranks of coal worldwide. It occupies an intermediate position in the coalification scale between sub-bituminous coal and anthracite, combining…
Semi-anthracite
Semi-anthracite is a distinct rank of coal that occupies a middle ground between high-grade anthracite and the more common bituminous coals. It combines many of the advantageous physical and chemical…
How Bituminous Coal is Used in Asphalt Production
Bituminous coal, a type of soft coal, plays a crucial role in the production of asphalt, a material widely used in road construction and maintenance. This article delves into the…
The Role of Coking Coal in Steel Production
Coking coal, also known as metallurgical coal, plays a crucial role in steel production. This type of coal is essential for the creation of coke, a key component in the…
