Torrefied coal
This article describes the nature, production, distribution and significance of torrefied coal — an upgraded solid fuel produced by thermal treatment — and explains where feedstocks and conventional coal occur,…
Anthracite briquettes
Anthracite briquettes are a concentrated, manufactured fuel derived from the highest-rank coal, prized for their high carbon content, low impurities and efficient combustion. This article explores the geology and distribution…
