Weathered coal
Weathered coal is a distinct category of near-surface coal that has been altered by exposure to air, water, temperature changes and biological activity. This alteration changes its physical, chemical and…
Pribbenow Mine – Colombia
Pribbenow Mine is a coal mining site referenced in connection with Colombia’s northern coal-producing regions. This article compiles available information about its location, geology, types of coal extracted, economic and…
Pasir Mine – Indonesia
The Pasir Mine is one of the many coal-producing sites that contribute to Indonesia’s prominent role in the global coal market. Situated in the coal-rich regions of the Indonesian archipelago,…
Improved thermal coal
Improved thermal coal refers to conventional thermal coal that has undergone physical or chemical processing to raise its **calorific value**, reduce impurities (ash, **sulfur**, moisture and trace metals), and improve…
Recycled coal fines fuel
This article examines the topic of recycled coal fines as a fuel: what they are, where they are found and recovered, how they are processed and used, their economic and…
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…
Blast-furnace injection coal
This article examines the role, characteristics, sources, economics and industrial importance of coal used for blast-furnace injection — commonly referred to as pulverized coal injection (PCI) coal. In modern ironmaking…
Utility-grade coal
This article examines utility-grade coal — the steam or thermal coal primarily used for large-scale electricity generation and district heating — covering what it is, where it is found and…
DRI-grade coal
This article examines DRI-grade coal — the coal types specifically used in the production of Direct Reduced Iron (DRI), commonly known as sponge iron. It explores the coal’s technical characteristics,…
Domestic heating coal
Domestic heating coal is a specific segment of the broad coal market that supplies households and small-scale heat users with fuel suitable for stoves, boilers and fireplaces. This article examines…
