Low-ash coal
Low-ash coal is a high-quality variety of coal characterized by a relatively low proportion of mineral matter (ash) after combustion. Because ash lowers the fuel value, increases handling and disposal…
Dry steam coal
This article explores the characteristics, occurrence, economic importance and industrial role of dry steam coal — a variety of coal primarily used for heat and power generation. Dry steam coal…
Lean coal
This article explores the technical, economic and geopolitical dimensions of what is commonly referred to as “lean coal” — lower-energy, lower-volatile types of coal often used for power generation rather…
Antaibao Coal Mine – China
The Antaibao Coal Mine is one of the better-known coal production sites in northern China. It plays a role in supplying fuel for regional power generation and industry, and it…
Fat coal
Fat coal — a traditional term used in many coal-producing countries — denotes a high-quality type of coal valued for its energy content and physical behavior during heating. Often associated…
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 A
Sub-bituminous A coal occupies an important place in the global energy mix. Positioned between lignite and bituminous ranks, this coal type is commonly used for power generation and industrial heat.…
The Impact of Coal on Air Quality and Public Health
Coal has long been a foundational element in global energy production, shaping industries and economies for centuries. Its widespread use has led to significant debates over environmental sustainability and health…
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,…
Medium-volatile bituminous coal
Medium-volatile bituminous coal is a widely used and geologically important type of hard coal that sits in the mid-range of the coal rank scale. It combines relatively high fixed carbon…
