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Gas-phase mass transfer coefficient

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Reference no: EM131635014

Ammonia gas is being absorbed by water in a wetted-wall column.  At one level of the column, the following data applies:

gas-phase mass transfer coefficient: 5.22 x 10-9 kmol m-2 s-1 Pa-1

liquid-phase mass transfer coefficient: 3.88 x10-5 m s-1

Henry's constant: 0.955 kPa (kmol m-3)-1

mole fraction of ammonia in liquid: 1.351 x 10-3

mole fraction of ammonia in gas: 0.065

total pressure of system: 1.013 bar

mole mass of ammonia: 17

Find:

  • the mass transfer flux in column
  • the partial pressure of the ammonia gas at the gas/liquid interface
  • the molar concentration of the ammonia in the liquid at the interface

Reference no: EM131635014

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