PSA Unit

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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.

Tags:- Pressure Swing Adsorption Units, PSA Air Separation Unit

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