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An adsorption bed of \( 216 \) kg capacity is regenerated with steam at \( 3 \) kg of steam per kg of solvent. The steam required per cycle is

  • A.648 kg
  • B.72 kg
  • C.216 kg
  • D.1296 kg

Answer: A

Multiplying gives \( 216 \times 3 = 648 \) kilograms of steam. The steam cost and the condensate handling are the principal running costs of a carbon adsorption system, and they set the value below which solvent recovery does not pay.

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