How it works
IACX’s processes utilize a method of separation called
pressure swing adsorption ("PSA"), a technology widely utilized around the world in a multitude of industrial gas separation applications, including, though certainly not limited to, hydrogen/helium purification, air separation, desiccant drying of air through airbrakes, etc.
PSA works like gravity, though on a molecular scale. A feed gas stream is introduced into a pressure vessel that is filled with specialized carbon pellets (inert, odorless and non-hazardous) characterized by enormous surface areas and unique molecular-sized pore structures. Under pressure, certain molecules are naturally attracted to the carbon surface (“adsorption”) while other gases pass by unaffected. Once the carbon adsorbent is fully loaded with target gas, the feed stream is diverted to an alternative bed. The pressure in the loaded bed is dropped and a vacuum is engaged, causing the adsorbed target gas to release, or desorb, from the carbon. The beds are completely regenerated as a result of this low pressure “swing” and the process is repeated. Multiple vessels are used to produce a continuous flow of product gas.
The IACX systems require minimal oversight and run largely unattended. A programmable logic controller (PLC) controls each Unit and allows for easy telephone/satellite hook-up for real-time, desktop-accessible review of operating conditions. The PLC is designed to automatically adjust timing sequences in order to compensate for changes in the feed stream's flow rate, composition and ambient temperature. In the event of an unscheduled shut-down, the PLC sends out a pager signal to an IACX operator for prompt response.
Learn about the
benefits of PSA.
