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What element content is coal graded by?

Updated: 8/18/2019
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13y ago

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carbon

Answer:

While coal's fixed carbon content ( not associated with volatile carbon content )is graded for heat production and suitability for metallurgical use. it is also graded by its sulfur content to to determine its acidity (this affects stack gas treatment). Coal analysis also include hydrogen, oxygen and nitrogen. Uranium analysis is sometimes included for specific pollution or emission relatd studies.

Non-elemental anays includes ash (inorganic) and water content

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Q: What element content is coal graded by?
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