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Gas-liquid absorption design problem

  1. Sep 14, 2011 #1
    Hey everyone

    i'm in the process of designing an absorption tower (packed) to remove pure CO2 from a natural gas stream flowing at 25 MMscfd.

    The natural gas contains 8% CO2 initially, and must contain 3% CO2 on exiting the tower.

    The feed gas inlet conditions are 298K and 6900kPa

    i've decided to use a propylene carbonate solvent

    The CO2 absorption into the solvent at the process conditions follows henrys law

    Basically i want to know how i would go about calculating the number of overall gas transfer units required to reach the 3% CO2 specification.
     
  2. jcsd
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