Oxygen is used in the production of clean energy with zero emissions.

At first glance, the process is standard. Fuel is combusted to produce carbon dioxide and steam, and the steam drives turbines that produce energy in the form of electricity.

One of the reasons the energy is clean involves PCI's oxygen. Most combustion processes use air, which contains 78% nitrogen and 21% oxygen. While nitrogen and oxygen do not react with each other under normal circumstances, they do react to a small degree during combustion. As a result, the pollutant NOx (containing NO and NO2) is produced. By using oxygen that is free of nitrogen, clean energy processes do not produce NOx.