Run-of-mine coal (ROM coal)
Run-of-mine coal (commonly abbreviated as ROM coal) is the raw material produced directly from a mine before any processing, washing or blending. It represents the first form of coal as…
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G-grade coal
This article examines the properties, distribution, economic role and industrial significance of a category frequently referred to as G-grade coal. The term can have several meanings depending on national standards…
D-grade coal
D-grade coal occupies a specific niche in the wider spectrum of coal types: it is typically a lower-ranked, commercially traded category of coal used mainly for thermal applications, industrial heating…
House coal
House coal — commonly sold as lumps of coal intended for domestic heating and small-scale use — remains an important yet controversial energy commodity in many parts of the world.…
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…
How Anthracite is Used in High-Efficiency Furnaces
Anthracite, a high-grade coal known for its high carbon content and low impurities, plays a crucial role in the operation of high-efficiency furnaces. This article delves into the various applications…
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…
Steam Coal vs. Coking Coal: Understanding the Differences
Coal is a vital resource that has powered industries and economies for centuries. However, not all coal is created equal. Two primary types of coal, steam coal and coking coal,…
The Conversion of Lignite into Synthetic Fuels
The conversion of lignite into synthetic fuels is a topic of significant interest in the energy sector. Lignite, often referred to as brown coal, is a type of coal that…
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…
