Pressure Swing Adsorption
This is ideal for an on-site hospital unit, because it is a safe process with reasonable energy and area requirements.
The process operates by using adsorbents to separate air components. The main equipment required in PSA is a compressor, an activated alumina bed, two adsorption columns, and a storage tank.
A compressor is required to supply the required volume of atmospheric air to produce the desired purity and output flow rate of oxygen.
An activated alumina bed is used to remove water vapor and impurities such as carbon dioxide and carbon monoxide.
Two adsorption columns are used to allow for a semi-continuous supply of product. A storage tank allows for product storage for later use.
The two columns operate semi-continuously in four stages to supply the desired purity and flow rate of oxygen. Adsorbents are selectively chosen to provide the most beneficial design.
This is ideal for an on-site hospital unit, because it is a safe process with reasonable energy and area requirements.
