bituminous coal
Definition
Noun: A type of coal that is relatively soft and contains a high amount of bitumen (a tarry hydrocarbon substance). It burns readily with a smoky, yellow flame and is an important fuel and raw material for coke production.
Examples
- The power plant primarily uses bituminous coal to generate electricity.
- Bituminous coal is often called "soft coal" to distinguish it from harder anthracite.
- When burned, bituminous coal produces more smoke and soot than anthracite.
Advanced Usage
- Industrial Context: In metallurgy, bituminous coal is a key ingredient in the production of coke, which is essential for smelting iron ore in blast furnaces.
- Example: The steel mill requires a steady supply of high-grade bituminous coal for its coking ovens.
Variants and Related Words
- Soft Coal: A common synonym for bituminous coal.
- Bitumen: The viscous, tarry hydrocarbon substance present in this type of coal and in natural asphalt.
- Sub-bituminous Coal: A grade of coal that ranks between lignite and bituminous coal, with lower carbon content and heating value.
- Coking Coal: A specific grade of bituminous coal suitable for producing high-quality coke.
Synonyms
- Soft coal
Related Phrases
- "Steam coal": Sometimes used to refer to bituminous coal used for steam generation in power plants and locomotives.
Noun
-
rich in tarry hydrocarbons; burns readily with a smoky yellow flame
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