Lignite briquettes
Lignite briquettes, a processed form of low-rank coal commonly called lignite or brown coal, play a distinctive role in regional energy systems and small-scale heating applications. This article explores where…
Metallurgical middlings
This article discusses the category known as metallurgical middlings — intermediate coal products generated in the preparation of metallurgical coal (also called coking coal). It explains what middlings are, where…
Fine steam coal
The following article examines fine steam coal — a category of thermal coal characterized by its small particle size and primary use in power generation. It covers geological occurrence, mining…
Gasification-grade bituminous coal
Gasification-grade bituminous coal is a specific class of coal valued for its suitability in conversion processes that produce synthesis gas (syngas) — a mixture primarily of carbon monoxide and hydrogen…
Low-mercury coal
This article examines the topic of low-mercury coal from geological occurrence to mining regions, market dynamics, industrial uses and environmental implications. Low-mercury coal has become an important commodity as regulators,…
Low-chlorine coal
Low-chlorine coal is a quality fraction of coal that attracts particular attention from power generators, metallurgists and chemical process engineers because of its reduced content of chlorine compared with typical…
Coal for sponge iron
This article examines coal used for the production of sponge iron (direct reduced iron), covering its geological occurrence, mining regions, technical characteristics, economic and statistical context, industrial significance and future…
Coal for ferroalloys
This article examines the role of coal specifically used in the production of ferroalloys. It covers geological occurrence, major mining regions, the coal qualities prized by ferroalloy producers, plant-level processing…
High-volatile C coal
High-volatile C coal is a specific rank within the bituminous coal classification that plays a significant role in global energy systems, industrial processes and regional economies. This article provides a…
High-carbon coal
High-carbon coal, a term that commonly refers to coal ranks with a high proportion of fixed carbon such as anthracite and certain grades of bituminous coal, remains an important component…
