• June 5, 2026
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…

  • December 26, 2025
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…

  • December 18, 2025
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…

  • December 16, 2025
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…

  • December 7, 2025
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.…

  • December 2, 2025
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…

  • September 4, 2024
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…

  • September 4, 2024
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…

  • September 4, 2024
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,…

  • August 19, 2024
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…