Air Separation Unit

Customized Air Separation Units for Industrial Gas Production

Polaris Air Separation Units (ASU) provide a flexible and innovative solution for producing high-purity industrial gases such as NitrogenOxygen, and Argon. Each ASU is designed to meet specific operational demands, ensuring efficiency in gas liquefaction and delivery in both gaseous and liquid forms.

Advanced Cryogenic Air Separation Technology

Our air separation units utilize cryogenic air separation, a highly efficient process that cools atmospheric air to extremely low temperatures, allowing for the separation and purification of individual gas components. This technology ensures high-purity gas production with optimal energy efficiency.

Why Choose Our Air Separation Units?

  • Tailored to your needs: each air separation unit is designed based on customer-specific production and energy efficiency requirements.
  • Highest industry standards: all components undergo rigorous testing to meet global safety and performance regulations.
  • Flexible and scalable: our plants are customizable to maximize the production requirements for your product needs and capacities.

For more information on how our cryogenic air separation technology can enhance your gas liquefaction and industrial gas supply, contact us today.

  • Gas factories
  • Steel and metal production
  • Petrochemical and Chemical
  • Refineries
  • Oil & Gas
  • Water treatment
  • Glass manufacturing
  • Electronics
  • Fertilizer plant
  • Pharmaceutical
  • Fully automatic control system
  • Reliable – a storage and vaporization back-up can be installed to allow for a continuous supply of the produced gas or for peak covering. Systems are designed to promptly react to varying needs.
  • Units are fully prefabricated at the Polaris workshop, for better construction control and cost reduction
  • Main Air Compressor(s), where air is compressed up to the required process pressure
  • Pre-Treatment section for H2O and CO2 removal
  • Cold Box where air is separated to obtain the necessary gases
  • Storage and vaporization section
  • Skid-mounted and supplied as a packaged unit
  • A stand-alone liquefier section for liquid N2 can also be installed in the plant, depending on operating conditions
  • PLC control system
  • Low investment and operation cost
  • High plant flexibility with different operational cases
  • Simple installation and maintenance
  • Telemetry system for remote control/service

Examples of Specific Air Separation Units

Air Separation Unit

Nitrogen Generation

Every aspect of our N2 Generation plants can be adapted to specific client requests and/or site needs.

Advantages include:

  • High purity of product (up to a concentration < 1 ppm of O2)
  • Compact and tailor-made design to match client needs
  • Possibility of liquid nitrogen production suitable as a strategic reserve to cover peak rates or as a backup in case of plant shutdown
  • Liquid storage and vaporization can be integrated in plant automation for prompt reaction
  • Low operating and maintenance cost
Air Separation Unit
Nitrogen and Oxygen Generation

Cryogenic technology allows for the production of very high liquid oxygen production that can be used for several medical and industrial applications. Polaris plants are designed to minimize gas production cost, while taking into consideration both CAPEX and OPEX.

Liquid oxygen is produced simultaneously with nitrogen and clients can benefit from several advantages:

  • High purity of oxygen product (up to medical standard)
  • High process efficiency
  • High flexibility with the possibility of maximizing LOX or LIN production based on market/user needs
  • Possibility of LIN and LOX storage as a backup to cover peak usage rates
Air Separation Unit
Argon Generation

In addition to a LIN/LOX plant, an integrated module for Argon production can be added.

Thanks to cryogenic technology, a high purity of liquid argon can be achieved, thereby maintaining a high overall efficiency of the plant. Even though argon (Ar) is a noble gas that comprises only 0.93% of the atmospheric air, Polaris has experience with a recovery rate > 95% with < 2 ppm of O2 as impurity.

Argon is most commonly used in the welding industry as an inert atmosphere to prevent oxidation. The uses are growing in the medical and scientific research communities.

Check out our other Cryogenic Technologies.