The VPSA plant is a complete set of systems. On the premise that the process design is reasonable, the supporting equipment is properly selected and the operation is smooth, the power consumption of the entire unit will be ensured the lowest. Specifically, related factors are as follows:

1. Whether the adsorbent is efficient.

The most efficient adsorbent currently on the market is the PU-8 lithium-based adsorbent, whose oxygen production per ton is the highest in the industry. The loading is less for the same oxygen production so that the resistance for the gas to pass through the adsorbent bed will be smaller, thus finally reaching a lower level of energy consumption.

2.Whether the process is reasonable.

The adsorbent is the core part of a plant and the maximum performance of the adsorbent can be ensured with reasonable process design, which includes adsorption temperature, pressure and cycle, desorption pressure and other indicators' settings.

3.Whether the power equipment matches the whole VPSA plant.

The main power of the whole plant is consumed by power equipment. If the power equipment is too small, the oxygen production won't meet the design specifications and if it is too large, the unit power consumption will be higher. In addition, smooth running of the supporting equipment is also important. If the valve leaks, the signal transmission of the instrument isn’t stable, etc., the operation of the entire system will be affected.

In summary, the power consumption of the VPSA oxygen production plant depends on the cooperative operation of the various components of the system.