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…
How Indonesia Became a Leading Coal Exporter
Coal has long powered industries, heated homes, and driven national economies. As one of the most abundant fossil fuels on Earth, its influence stretches from mining towns to global trading…
Bituminous briquettes
Bituminous briquettes are a form of processed coal that combine the properties of natural bituminous coal with mechanical compaction and, often, added binders to create a solid, uniform fuel product.…
