Xebec has developed two proprietary technologies that we believe solve some of the inherent disadvantages of conventional PSA gas purification technology:

• Our proprietary structured adsorbent material avoids the fluidization limitation of beaded adsorbents, allowing our PSA systems to operate at significantly higher cycle speeds (up to 50 cycles/minute) than conventional PSA systems. This results in a direct reduction in the amount of adsorbent material and the size of equipment that is required to purify a given volume of product gas.
• In addition, our proprietary rotary valve technology replaces the complex and bulky network of piping and valves used in conventional PSA systems with two compact, integrated valves.

Xebec's structured adsorbent and rotary valve technologies are packaged into an integrated rotary fast-cycle PSA design as depicted on the right:

• Compact size. The increased cycle speed and rotary mechanical design significantly reduce the size of our systems compared to conventional PSA's. This results in reduced capital and installation costs.
• Modular, scalable design. The integrated mechanical design of our PSA products is inherently modular and is designed to be skid mounted, reducing equipment installation time and cost. Our basic rotary system architecture is also scalable from small portable applications to large industrial scales.
• Flexibility. Our PSA systems can be modified to purify a range of different gases and a range of capacities by changing the type of structured adsorbent material and the design of the rotary valve.