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Membrane

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Nitrogen Generator

Nitrogen Membrane Plant

A Nitrogen Membrane Plant is a system used to generate high-purity nitrogen gas on-site using membrane separation technology. These plants are compact, energy-efficient, and ideal for industries that require a constant and reliable nitrogen supply.

How It Works

Nitrogen membrane technology separates nitrogen from compressed air using hollow-fibre polymer membranes. These fibres selectively allow oxygen, water vapour, and other gases to pass through more quickly than nitrogen, which remains and is collected as the product gas.

Key Components:

  • Air Compressor: Supplies compressed air to the system.
  • Air Dryer & Filters: Removes moisture and particles to protect the membrane.
  • Membrane Module: Contains thousands of hollow fibres for gas separation.
  • Control Panel: Automates and monitors pressure, flow, and purity.

Applications of Nitrogen Membrane Plants

Oil & Gas Industry

  • Pipeline Purging and Blanketing: Prevents explosions and oxidation by displacing oxygen.
  • Well Stimulation: Used in enhanced oil recovery and gas lifting.
  • FPSOs and Offshore Rigs: Compact footprint and low maintenance make membrane systems ideal for marine use.

Food & Beverage

  • Food Packaging (MAP): Extends shelf life by replacing oxygen in food packaging.
  • Beverage Bottling: Prevents oxidation of beer, wine, and juices.
  • Grain Silos & Storage: Inhibits Mold and insect growth.

Electronics & Semiconductor

  • Tank Blanketing: Protects chemicals from air/moisture contamination.
  • Inert Gas Purging: Prevents fire hazards during plant maintenance.

Mining

  • Fire Prevention: Used in coal mines to create non-combustible atmospheres.

Marine Industry

  • Fuel Tank Inerting: Reduces the risk of explosion on ships.

Advantages of Nitrogen Membrane Plants

  • On-Demand Nitrogen: Eliminates dependency on nitrogen cylinder deliveries
  • Low Maintenance: No moving parts in membrane modules.
  • Compact and Modular: Ideal for mobile or offshore use.
  • Safe & Reliable: No cryogenic handling; reduces operational risk.
  • Energy Efficient: Especially at lower purity requirements (95–99.5%).

Purity & Flow Range

  • Nitrogen Purity: Typically adjustable between 95% and 99.9%
  • Flow Rates: Scalable from a few Nm³/h to hundreds, depending on application
  • Pressure: Usually 5 to 13 bar; higher with booster compressors

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