Clean fossil fuel heat and power plants - General information

Oxygen production

The air that surrounds us contains ~21 % oxygen. There are two ways to separate this oxygen from the air.

1. Cryogenic Air Separation
   • Based on differences in boiling points of the different air gases.
   • A well developed technology.
2. None Cryogenic Air Separation
   • Based on differences in molecular weights and molecular size of the different air gases.
   • Employs membranes or adsorbents.
   • Newer technology suitable for some applications.

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