When developing your specification for a nitrogen generator, it is important to understand that the size and cost of the equipment is mainly based on the purity and flow rate required. With PSA generators, it is key to identify your maximum peak flow requirement at any given point during your operation. It is also important to identify the minimum purity that you require to maximize your savings potential. Most applications do not require the “one size fits all” purity supplied by your gas company. For example, many food-packaging applications require 99.5% purity. 99.5% is considered a low purity for PSA generation leading to extremely low cost equipment and very efficient compressed air to Nitrogen ratios. There are many applications where high purities of 99.999%+ offer tremendous savings as well.
Many of our electronics and lab customers are not candidates for bulk cryogenic tanks based on volume so they are forced to use expensive liquid nitrogen dewars. In most cases, liquid nitrogen dewars are roughly 50% more expensive than PSA generators. There are also many inherent dangers in using liquid dewars that just don’t exist when using a PSA generator. With a PSA nitrogen generator there are no deliveries, no rolling heavy wheeled pressurized canisters through the plant and no venting and boil off your product.
Please contact On Site Gas Systems to discuss your flow requirement, your purity requirement and your pressure requirement. We will then work with you to design a nitrogen generation system to maximize your savings potential. We will also provide you with a Return on Investment profile that will outline the “real” savings achieved using our Pressure Swing Adsorption technology.