On-site nitrogen generators for the wine industry
PSA oxygen generators use a zeolite sieve material due to its adsorbent qualities. This separates the 78% nitrogen and 21% oxygen found in air supplied by an air compressor. Since this process uses adsorption, two drums are required. One is used for separating nitrogen and oxygen, and the other is for regenerating the adsorbent material.
There's typically also a storage tank for holding oxygen to serve peak production. Additionally, much like fixed speed vs. variable speed drive (VSD) air compressors, there are oxygen generators to meet fluctuating demand. For example, the Pneumatech PPOG High Efficiency (HE) model can reduce energy consumption by up to 70% by matching oxygen production to demand. This works with an algorithm to ensure optimal performance.
Traditionally, PSA oxygen generators maintain a constant cycle, regardless of how much gas is needed. HE oxygen generators have a higher investment cost but pay for themselves throughout their lifespan. This model also benefits the environment. In some cases, you can invest in a 30% smaller HE model compared to a standard PSA generator. While producing the amount of oxygen you need, you'll consume less electricity.
Regardless of which model you choose, you'll still save money with on-site production compared to ordering oxygen tanks through a supplier.
