Multiple choice

Which of the following technologies is used to separate a mixture of gases?

  1. Wetting

  2. Protein adsorption

  3. Adsorbtion spillover

  4. Pressure swing adsorption

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pressure swing adsorption (PSA) is a technology used to separate some gas species from a mixture of gases under pressure according to the species' molecular characteristics and affinity for an adsorbent material. It operates at near-ambient temperatures and so differs from cryogenic distillation techniques of gas separation.

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