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State whether the following is true or false.
A cement kiln consumes about twice the theoretical minimum energy for the reactions it carries out.

  • A.False
  • B.True only at large scales
  • C.False only at small scales
  • D.True

Answer: D

The chemistry needs roughly 1,750 megajoules a tonne while a good modern kiln uses somewhat over 3,000. Losses through the shell, in the exhaust gas and with the clinker account for the difference. Closing that gap further is the object of most kiln development work.

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