• August 1, 2026
The Environmental Legacy of 19th-Century Coal Mining

The saga of coal stretches back millions of years, yet its pivotal role in the 19th century reshaped landscapes, societies, and the very fabric of industrial progress. As the world…

  • July 13, 2026
Durain coal

This article examines Durain coal, a regional coal type with distinct geological, economic and industrial attributes. It explores where Durain coal is found and mined, its chemical and physical characteristics,…

  • May 28, 2026
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…

  • May 27, 2026
Power-grade lignite

This article examines brown coal (lignite), commonly referred to as power-grade lignite, describing its geological nature, global distribution, mining and processing methods, economic and industrial roles, environmental impacts and the…

  • May 9, 2026
Gasification-grade sub-bituminous coal

This article examines gasification-grade sub-bituminous coal: its geological characteristics, global distribution, mining and supply patterns, technical suitability for coal gasification and related processes, economic and market aspects, environmental considerations, and…

  • April 3, 2026
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…

  • March 30, 2026
Super-low-volatile coal

Super-low-volatile coal is a specialized, high-rank form of coal valued primarily for its high fixed carbon content, low volatile matter, and strong performance in metallurgical and high-temperature industrial applications. This…

  • January 2, 2026
Low-rank coal

Low-rank coals — commonly referred to as lignite and sub-bituminous coals — occupy an important but often misunderstood position in the global energy mix. Characterized by high moisture content, relatively…

  • December 23, 2025
Carbon coal

The following article examines the geological nature, global distribution, economic importance, and environmental implications of coal — a sedimentary rock that has powered industry and societies for centuries. It covers…

  • December 21, 2025
Non-coking coal

Non-coking coal, often referred to as thermal or steam coal, is one of the most widely used fossil fuels in the world. Unlike coking coal, which is suitable for metallurgical…