![]() On-site nitrogen generation systems are engineered to deliver gas at the optimum purity prescribed for the application, resulting in increased efficiency and dollars saved. For applications which only require 95% nitrogen purity, traditional supply can be wasteful if there is no benefit to increasing the concentration level. From generation to delivery, the gas is introduced to various connection points, hoses and storage vessels before it is released to the final process. ![]() Following analysis, the gas is stored, transported, decanted, then used. When purchasing nitrogen in bulk liquid or pressurized cylinder, the gas is analyzed at the air separation plant and typically supplied at 99.999%, regardless of the application. Understanding how much oxygen your process can tolerate and engineering a solution to deliver a customized purity will result in financial gain. Each industry, application and process will require varying purity levels, depending on the immediate and long term sensitivity to oxygen. Over specifying the purity will result in a wasteful and expensive ordeal, while under specifying the purity will overexpose the process to oxygen and potentially compromise the finished product. Why Is Identifying Nitrogen Purity Important?Ĭorrectly identifying the nitrogen purity that your process requires is very important. Nitrogen is inherently a very dry and clean gas and whether acquiring it in bulk liquid, pressurized cylinder, or through on-site generation, it has a low dew point and should be supplied clean of contamination. While filtering these contaminants is highly critical, it should not be confused for purity when speaking about nitrogen. When you begin to eliminate the oxygen and trace gas, you increase your nitrogen concentration, or purity.Ī common misconception when discussing nitrogen purity, is that it refers to the presence of contaminants, such as particulate matter and oil vapour. The remaining 22% is comprised of oxygen (~21%) and trace gases (~1%). Nitrogen is one of the most plentiful elements in our galaxy and accounts for 78% of the air that we breathe. When speaking about nitrogen, the term purity refers to the level of gas concentration. Each application will require a unique purity level, depending on its tolerance for oxygen. One of the most common questions we receive while working with clients is “what nitrogen purity do I need?”, and it’s one of the most important items to correctly identify.
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