Question #061b5

1 Answer
Dec 15, 2017

Pressure reduction, temperature increase, substitution with inert gas, membrane degasification


  • Pressure Reduction - The amount of dissolved gas in a liquid is proportional to its partial pressure. Therefore, placing the liquid under reduced pressure will result in the release of gas from solution. A specialist chambers, called a vacuum degasser, can be used to degas a liquid through pressure reduction.
  • Temperature Increase - less gas dissolves in a liquid at higher temperature, so increasing the temperature of the liquid would result in gas being released.
  • Substitution by inert gas - an inert gas e.g. nitrogen, helium, argon, is bubbled through the solution, and the gas is displaced.
  • Membrane degasification - gas removed using membrane which allows gas through, but not liquid.