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Generally The Pressure Swing Adsorption units come as a packaged unit.
These are transported to the site as one or more pieces ready to be
installed. A Typical Pressure Swing Adsorption unit consists of the
following equipment:
- Adsorber Vessels that are made up primarily of carbon steel that
are filled up with Adsorbents.
- Valve and piping skids that includes instrumentation also.
Generally these comes as prefabricated.
- A PSA Control System that
is located in the remote control room is used for controlling
cycles.
- A Mixing drum that is employed for minimisation of the
composition variation of the offgas.
Heat Exchangers for the
Pressure Cycling Air streams:Pressure Swing Adsorption (PSA)
air separation plants are using the heat exchanger for cooling its
process gas/air stream. For the sorbent material to fragment air
into it's constituents (oxygen and nitrogen) the pressure gets
cycled every half an hour.
Key points in Design selection:
- Ultra-Heavy duty design: Due to the frequent and
severe pressure cycling, the heat exchanger needs to be
Heavy-duty.
- Unique Stress Analysis software: To predict the
stress and deflection under varying load conditions.
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