• January 7, 2026
Coke oven coal

This article explores the coal used specifically for coking and in coke ovens — the type of coal central to modern **steel**making and a range of industrial processes. It covers…

  • December 12, 2025
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…

  • December 11, 2025
High-sulfur coal

High-sulfur coal is a distinctive and consequential category of fossil fuel whose chemical makeup, geographic distribution and economic implications have shaped energy systems, industrial processes and environmental policy for more…

  • December 2, 2025
Sub-bituminous C

Sub-bituminous C is a specific rank of coal that plays a quiet but important role in global energy systems. Positioned between lignite and higher-rank bituminous coals, sub-bituminous C combines relatively…

  • December 1, 2025
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…

  • November 29, 2025
The History of Coal: From the Industrial Revolution to Today

The story of coal weaves through centuries of human endeavor, fueling revolutions and shaping landscapes. Its journey from a rudimentary heat source to a cornerstone of global energy systems reflects…

  • November 27, 2025
Thermal coal

Thermal coal, commonly known as steam coal, is one of the most important fossil fuels in modern energy systems. It is primarily used to generate electricity and as a heat…