Hard steam coal
Hard steam coal is a widely used category of solid fossil fuel, valued for its relatively high energy content and versatility across power generation and industrial processes. This article examines…
F-grade coal
This article explores the characteristics, occurrence, production, economic role and industrial significance of what is commonly referred to as F-grade coal — a practical label used in some markets and…
High-moisture coal
High-moisture coal is a broad category of low-rank coals that contain a significantly higher share of water in their natural state than medium- and high-rank coals. These coals play an…
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.…
Yili No. 1 Mine – China
This article provides a comprehensive overview of the Yili No. 1 Mine in China, examining its location, geology, the type of coal extracted, economic and industrial importance, environmental and social…
The Role of Coal in Global Energy Security
Coal continues to play a pivotal role in shaping the contours of global energy systems. This article explores the multifaceted aspects of coal and **coal stock**, examining their contributions to…
Brown coal
This article explores brown coal (commonly called lignite) in detail: its geological origins, where it is found and mined, its economic and industrial roles, statistical snapshots of production and consumption,…
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…
Sub-bituminous B
Sub-bituminous B coal is a low- to medium-rank thermal coal that plays an important role in contemporary energy systems, particularly for power generation. It sits between lignite and bituminous coal…
Sub-bituminous coal
Sub-bituminous coal is an intermediate rank of coal that bridges the gap between lignite and bituminous coal. It plays a crucial role in modern energy systems, particularly in power generation,…
