How does Pressure Swing Adsorption (PSA) technology work?
Pressure Swing Adsorption (PSA) is a cost-effective method of producing high-purity nitrogen or oxygen. All Gazcon generators are based on PSA technology. |
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1) A Gazcon generator consists of two cylinders storing either Carbon Molecular Sieves (CMS) or Zeolite pellets. CMS is used to produce nitrogen. Zeolite is used to generate oxygen.
An external buffer tank stores the pure nitrogen or oxygen gas. |
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2) The PSA process starts as clean and dry compressed air enters the first cylinder (left).
The unwanted gas is adsorbed by the pellets at high pressure, but the molecules you want pass through. The resulting high-purity gas is stored in the buffer tank.
During this step of the cycle, the second cylinder (right) is cleaned. |
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3) Next, the pressure between the two cylinders is equalised. |
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4) When the pressure drops in the left cylinder and the pellets are saturated, the waste products are blown out through the exhaust system.
In the right cylinder pressure builds up until the pressure between the two cylinders is once again equalised.
The process is repeated and a constant production of gas is established.
More info?
Download detailed PSA description (PDF-file 184 KB) |
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