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How Nitrogen Generators Can Help the Fruit Storage Industry

There is nothing better than fresh fruit in the summer months. But when the weather turns and local fresh fruits are no longer an option then fruit storage containers are used by the industry. The fruit storage industry allows us all to have fresh crisp fruit all year long. Industrial Nitrogen Generation 

Controlled atmosphere storage (CA) involves a careful process of controlling gases within the large storage rooms. These rooms must be airtight in order to keep fruit just as fresh as the day it was picked. Careful control of the temperature, oxygen, carbon dioxide and humidity are all crucial elements in fruit storage. Controlled atmosphere storage for fruit storage is a non-chemical process. Controlling the oxygen levels in the rooms is most successful by introducing the infusion of nitrogen gas. Nitrogen generators can help take oxygen levels from roughly 21 percent in our breathing air to as low as 1 or 2 percent. So why not let nitrogen help your fruit storage?

When it comes to the fruit storage industry, two types of nitrogen generators are best recommended. Membrane generators or PSA generators (pressure swing adsorption). The unit you choose always depends on your specific needs, however if you are not entirely sure which generator is best suited for your company, a knowledgeable nitrogen generator supplier will be able to assess your nitrogen need.

Membrane generators are best suited for on-site low flow applications where the purity is 99.5% or lower. These generators have an easy manual process control and are very quiet with low maintenance. Another added benefit of the membrane generator for the fruit storage industry is that there is a quality air pre-treatment filtration system. Fruit storage depends on a very controlled environment which allows the ripening process to slow, until the product is ready to be removed from the controlled atmosphere storage room. This makes the membrane generator an extremely low-cost and reliable source for infusing nitrogen into the rooms.

Pressure Swing Adsorption generators produce nitrogen differently – by way of a carbon molecular sieve – and are best suited for applications in which purity should be 99.5% or higher. Compressed air flows through the sieve where oxygen and any other trace gas is absorbed by the generator. All the contaminants that are absorbed by the generator are vented out of the unit after a pre-set time. An added benefit of choosing a PSA nitrogen generator for use with a fruit storage company is that this unit has narrow pore opening within the towers. Since oxygen molecules tend to be smaller than nitrogen molecules, the oxygen has a better chance of being absorbed into the sieve and separates them from the nitrogen molecules which are much larger and can’t pass through the sieve – increasing nitrogen production.

Both membrane and PSA nitrogen generators are great options for the fruit storage industry allowing controlled atmosphere storage rooms to operate smoothly, efficiently and most importantly to produce the best quality product.


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