- Raw Coal
- Coal that has received no preparation other than possibly screening.U.S. Dept. of Energy, Energy Information Administration's Energy Glossary
Energy terms . 2014.
Raw Coal
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Coal gasification — is the process of producing coal gas, a type of syngas–a mixture of carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2) and water vapour (H2O)–from coal. Coal gas, which is a combustible gas, was traditionally used as a source of energy for … Wikipedia
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raw materials — raw ma terials noun plural * substances such as coal or iron that are in their natural state before being processed or made into something … Usage of the words and phrases in modern English
raw materials — UK US noun [plural] ★ substances such as coal or iron that are in their natural state before being changed by chemical processes Thesaurus: natural worldsynonym environmental issueshyponym … Useful english dictionary
