clean coal (English, noun)
expansion: clean coal (uncountable)
Senses:
glosses: Any technology that may mitigate emissions of carbon dioxide and other greenhouse gasses that arise from the burning of coal for electrical power.
tags: uncountable
glosses: anthracite (a cleaner burning variety of coal, which is usually hard and bluish, with fewer impurities; making it acceptable for uses needing cleaner coal)
tags: dated
uncountable
glosses: coke (a coked version of coal, that has been cleaned of many of its impurities, making it acceptable for use in steel-making and other uses needing cleaner coal)
tags: dated
uncountable
Forms: