Fuels and Combustion
Out of the following, which is the most important parameter for the blast furnace grade coke?

CSR & CRI
Ash content
Volatile matter content
Moisture content

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Fuels and Combustion
Froth floatation is used for

Washing lump coal (> 80 mm size)
Removing ash from the coal based on difference in specific gravity of coal and ash
Washing fine coal dust (< 0.5 mm size)
All of these

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