What is the rank of a coal? And explain the proximate and the ultimate analysis of a coal.
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Answer:
The proximate analysis of coal separates the products into four groups: (1) moisture, (2) volatile matter, consisting of gases and vapors driven off during pyrolysis, (3) fixed carbon, the nonvolatile fraction of coal, and (4) ash, the inorganic residue remaining after combustion
Explanation:
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Answer:
Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce. The key difference between proximate and ultimate analysis of coal is that proximate analysis is the technique used to analyze the moisture content, ash content and fixed carbon of coal whereas ultimate analysis is the technique used to analyze the chemical composition of coal.
Explanation:
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