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Ultra High Purity (UHP) PREPURIFIER

 

 
The Chemical Design Ultra High Purity (UHP) Purification system provides a product stream to the customer cold box previously unreachable by conventional purification methods.  Air sent to the CDI system is first reacted to remove H2 and CO.  It then undergoes adsorption where CO2 and water are removed down to less than 0.5 ppmv.   This provides a product gas that when fed to the customer cold box, returns and ultra high purity nitrogen.  A few examples of past Chemical Design UHP systems are shown above.

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