Membrane Nitrogen Gas Plant

Membrane technology is regarded as an emerging gas separation technique in the industry due to the lower cost in both initial capital and energy consumption, if compared to cryogenic distillation and pressure swing adsorption. The typical design of the membrane gas separation technique is that the air is drawn from the ambient into the membrane module and the targeted gases are separated based on the difference in diffusivity and solubility. In the membrane module, oxygen will be separated from the ambient air and collected at the upstream due to the high diffusivity, whereas nitrogen will be collected at the downstream of the module.

A Nitrogen generator using membrane technology has the following characteristics:

Least expensive N₂ production method
High N₂ purities, or high N₂ volumes at lower purity levels
High reliability due to simple airflow design
Utilizes lower operating and delivery pressures

Salient Features

Cost-effective gas supply Standard, pre-engineered product range.
Less power consumption hence low operating cost.
No moving parts thus negligible maintenance is required.
Easy to handle and maintain
Highly skidded, modular design ready for installation supplied from factory.
Lower Space Requirement.
Fully automated controls for unattended operation.
Fast start up time to run plant in full load.
10 years or more then, of the system.

Technical Specifications

Capacity	1 NM ³/hr to 5000 NM ³/hr
Purity	95% to 99.9%
Pressure	5 - 25 Bar g
Dew Point	(-) 70°C

Industrial Application

Nitrogen gas is used in many varying industries—a few of them are highlighted below:

Food Packaging – Nitrogen is used to displace oxygen in food packaging. By eliminating the oxygen, the food can last longer. It can also add a cushion around the food to keep it safe from breaking in transport.
Light Bulb Production – In incandescent light bulbs, nitrogen gas is often used as a cheaper alternative to argon.
Chemical Plants – Nitrogen is used to displace oxygen and prevent explosions in highly dangerous atmospheres, such as chemical plants and manufacturing facilities.
Tire Inflation – Nitrogen offers many benefits when used to fill tires, such as giving them a longer life by reducing oxidation. It also improves tire pressure retention to give drivers better gas mileage.
Electronics – When electronics are being assembled, nitrogen gas is used for soldering. Using nitrogen reduces the surface tension to provide a cleaner breakaway from the solder site.
Stainless Steel Manufacturing – By electroplating the stainless steel with nitrogen, the finished product is stronger and resistant to corrosion.
Pollution Control – Nitrogen gas can be used to remove the VOCs in liquids before they are discarded.
Pharmaceuticals – Nitrogen gas can be used to remove the VOCs in liquids before they are discarded.
Pharmaceuticals – Almost every major drug class contains some nitrogen, even antibiotics. Nitrogen, in the form of nitrous oxide, is also used as an anesthetic.
Mining – In the mining industry, nitrogen gas is used to quickly extinguish fires by eliminating the oxygen from the air. And when an area is going to be abandoned, they use nitrogen to ensure the area will not explode.

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