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State whether the following is true or false.
Energy consumption in a chlor alkali plant is dominated by the electrolysis itself.

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

Answer: B

Correct answer: True

Electrolysis is the process, and it consumes roughly 2,000 to 3,000 kilowatt hours per tonne of chlorine - enough that electricity is the dominant cost of the product and that plants are sited where power is cheap and reliable. Brine purification, drying and caustic concentration all consume energy too, but together they are a fraction of the cell house load.

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