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Nitrogen Generation Unit

Nitrogen Purification System Unit

The nitrogen purification system unit is key equipment for deep purification of crude nitrogen from air separation plants or gas cylinders using Pressure Swing Adsorption (PSA) technology. The core of the system lies in the special adsorbents (such as carbon molecular sieves) filled inside, which selectively adsorb residual impurities including oxygen, moisture and carbon dioxide in crude nitrogen through periodic pressure changes, so as to continuously produce high-purity nitrogen (usually up to 99.999% and above).

We can provide a variety of gas supply solutions according to customer requirements. We also offer maintenance services for nitrogen generation equipment and related devices, as well as technical training and technical consulting for users.
Product Keywords：Nitrogen Purification System Unit    Jiarui Gas
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Product description

Nitrogen Purification Technology

The nitrogen purification system can automatically adjust the proportion of hydrogen added to the feed gas based on the actual oxygen content continuously detected by an oxygen analyzer. To minimize excess hydrogen and improve nitrogen purity, the system is equipped with a high-precision, high-performance hydrogen control module. The mixed gas enters a catalytic reactor, where hydrogen and oxygen undergo an exothermic reaction to form water vapor. The vapor is condensed into water and then removed. The nitrogen is dried by an adsorption dryer to finally obtain clean and dry nitrogen product.


■ Technical Features

·  The product gas purity is continuously monitored by an oxygen analyzer. Gas is vented automatically if purity falls below customer requirements. High-purity nitrogen leaving the reactor is first cooled by a cooler to remove condensed water.
·  The product nitrogen is extremely clean and dry, with a dew point as low as -70°C.
·  The control system automatically adjusts hydrogen flow and ensures minimal hydrogen residue in product nitrogen.
·  The entire system operates fully automatically.


■ Main Performance Indicators

·  Equipment Model：HBDC
·  Power Supply：380V/50Hz
·  Trace Oxygen Content：10ppm
·  Operating Pressure：0.5-0.6mpa
·  Operating Temperature: Ambient Temperature


■ Process Flow Diagram



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