APSA: Nitrogen Generation System

Highly reliable, easy-to-operate cryogenic system. It produces up to 9,000 Nm³/h of ultra-pure nitrogen, offering a safe and cost-effective gas supply for demanding industries.

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Critical sectors like electronics and LNG require a continuous, ultra-pure nitrogen supply. As your technology partner, we design APSA plants to secure your operations with on-site generation.

Advanced cryogenic separation

The APSA nitrogen generation system is based on a highly efficient air separation process.

  • Core steps: The process involves air compression, adsorption, purification, and the cryogenic distillation of the main air components.
  • Optimized economics: Air Liquide Engineering & Technologies offers several process schemes that are tailored to optimize both Capital Expenditure (Capex) and Operational Expenditure (Opex), depending entirely on the customer's specific product requirements.

High purity for demanding industries

This small-capacity system is highly versatile and specifically engineered to serve LNG terminals, crude oil refineries, and the electronics sector.

  • Capacity: It produces between 500 Nm³/h and 9,000 Nm³/h of nitrogen.
  • Exceptional purity: It delivers both gaseous and liquid nitrogen with extremely low oxygen content, ranging from 100 ppm down to 1 ppb O2.
  • Co-production: Depending on the setup, high-purity liquid oxygen (LOX) can also be co-produced.

Maximum uptime and safety

These systems are widely recognized across industries for being safe, highly reliable, and very easy to operate and maintain.

To ensure uninterrupted operations, APSA systems often include backup vaporizers and storage solutions that are designed exactly to the customer’s requirements for availability and reliability. Furthermore, some liquid co-production can be made available specifically to refill these backup liquid storages, guaranteeing a continuous gas supply even during maintenance

Frequently Asked Questions (FAQ)

What is the capacity of an APSA unit?

The APSA unit is designed for small capacity needs, producing between 500 Nm³/h and 9,000 Nm³/h of nitrogen.

How does the APSA nitrogen generation system work?

It relies on cryogenic air separation, which includes consecutive steps for air compression, adsorption, purification, and cryogenic distillation.

Can the system produce liquid nitrogen?

Yes, the APSA system produces both gaseous and liquid nitrogen, and it can also optionally co-produce high-purity liquid oxygen (LOX)

  • A proven global track record

    With more than 100 referenced units successfully deployed worldwide, the APSA technology has a deeply proven track record. By partnering with Air Liquide Engineering & Technologies, you benefit from a system that is fully optimized for your energy costs and process integration needs, ensuring long-term operational excellence.

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