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…
Prime PCI blend
This article examines the characteristics, occurrence, mining, economic significance and industrial role of the Prime PCI blend — a category of coals specifically tailored for pulverized coal injection (PCI) into…
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…
High-BTU coal
High-BTU coal is a category of fossil fuel prized for its high energy content per unit mass and strong industrial applications. In many energy and metallurgical markets, this coal commands…
Ultra-cleaned thermal coal
The term ultra-cleaned thermal coal refers to thermally graded coal that has undergone intensive beneficiation and cleaning processes to remove ash, sulfur, moisture and other impurities, producing a fuel with…
Steam-turbine coal
This article examines steam (thermal) coal — the grade of coal primarily used to produce steam for electricity generation in steam turbines. It covers what this coal is, where it…
How Underground Coal Gasification Works
Coal remains one of the most widespread and historically significant sources of energy, playing a crucial role in power generation, steel production, and various industrial processes. As global demand for…
