How it works - The Process

The synthesis of crystalline Zeolite molecular sieves in the 1950s permitted the development of many separation processes in the chemical and petrochemical industries. One of these processes was the separation of oxygen from the mixture of gases that comprise air.

The characteristic of molecular sieve crystals to differentially adsorb the gases comprising air make oxygen concentration possible in devices of small-scale and modest power consumption. The efficiency of the process is promoted under conditions of higher pressure, lower temperature, and higher concentrations of the gases to be adsorbed.

As air flows through a column (or bed) of molecular sieve, the component gases it contains are adsorbed and stratified in the order of their relative affinity to the molecular sieve material.

The process may continue until the next to last gas component stratifies near the end of the bed. Once the full bed length is used, the bed must be regenerated by desorbing (or purging) the adsorbed gases. Purging is accomplished by reducing the pressure in the bed and back-flushing with some of the concentrated gas product. Adsorption and desorption are completely reversible processes and can be carried out indefinitely. If properly cycled through the adsorb-desorb process, molecular sieve beds never "wear out" or become "clogged."

Read More >> How it works - The Technology

Click here to rent The McKinley Altitude Simulator™ securely online now, or alternatively call 0845 602 3902 (UK only) or +44 (0)1543 568545 (ROI and International) between 10am and 4pm (GMT) to place your order over the phone.