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Bituminous coal is a particular rank of coal, as determined by the amount and type of carbon present in the coal and the amount of energy it can produce when burned. [2] It is higher in rank than sub-bituminous coal but lower in rank than anthracite. [3] Bituminous coal is the most abundant rank of coal. [3] [2]
Raw coke. Coke is a grey, hard, and porous coal-based fuel with a high carbon content. It is made by heating coal or petroleum in the absence of air. Coke is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges.
Coking is the process of heating coal in the absence of oxygen to a temperature above 600 °C (1,112 °F) to drive off the volatile components of the raw coal, leaving behind a hard, strong, porous material with a high carbon content called coke. Coke is predominantly carbon.
Anthracite coal was first found in 1762, and then was used for the first time around 1769 by Obadiah Gore and his brother in their blacksmith shop in Wilkes-Barre. However, coal usage was generally restricted to local consumption need until the industry began to expand at the turn of the 19th century. [14]
Sub-bituminous coal, whose properties range between those of lignite and those of bituminous coal, is used primarily as fuel for steam-electric power generation. Bituminous coal , a dense sedimentary rock, usually black, but sometimes dark brown, often with well-defined bands of bright and dull material.
Metallurgical coal or coking coal [1] is a grade of coal that can be used to produce good-quality coke. Coke is an essential fuel and reactant in the blast furnace process for primary steelmaking. [2] [3] [4] The demand for metallurgical coal is highly coupled to the demand for steel. Primary steelmaking companies often have a division that ...
Download as PDF; Printable version; In other projects Wikidata item; ... Sub-bituminous coal; Bituminous coal, or black coal This page was last edited on 1 March 2021 ...
Smokeless coal is more efficient than a conventional open coal fire indoors because the high working temperature is released into the room as infrared radiation, as can be judged by the bright red color of a mature fire. The hot gases produced are lost up the chimney, thereby reducing efficiency just as in an open coal fire.
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