Coal-to-liquid feedstock
This article examines coal as a feedstock for coal-to-liquid (CTL) processes: its geology, global occurrence, mining and supply, economic importance, statistics, industrial uses, environmental challenges and technological trends. Coal remains…
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…
Gasification-grade bituminous coal
Gasification-grade bituminous coal is a specific class of coal valued for its suitability in conversion processes that produce synthesis gas (syngas) — a mixture primarily of carbon monoxide and hydrogen…
Hard coking blend
Hard coking blend coal plays a pivotal role in the global metals and energy complex. This specialized grade of metallurgical coal is blended and processed to produce high-strength coke, an…
Super-premium coking coal
Super-premium coking coal occupies a niche but critical position in the global energy and metals complex. This special grade of coking coal is prized for its exceptional physical and chemical…
Mining-grade coal
This article examines mining-grade coal: its geology, types, where it occurs and is extracted, economic and statistical dimensions, industrial importance, and ongoing technological and environmental developments. The discussion covers both…
Low-chlorine coal
Low-chlorine coal is a quality fraction of coal that attracts particular attention from power generators, metallurgists and chemical process engineers because of its reduced content of chlorine compared with typical…
Ultra-low-phosphorus coal
Ultra-low-phosphorus coal represents a niche but strategically important subset of coals whose exceptionally low concentrations of phosphorus make them valuable to high-specification industrial applications. This article examines what ultra-low-phosphorus coal…
Low-phosphorus coal
Low-phosphorus coal occupies a special niche within the global coal complex: it is a grade of coal with unusually low concentrations of phosphorus, prized by industries that demand high-purity feedstocks.…
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,…
