Cryogenic degassing for storage tanks and gas spheres

Safe, combustion-free degassing with up to 99.9% VOC reduction and full product recovery.

Group AQ provides mobile cryogenic degassing solutions across West-Europe, helping operators safely prepare tanks and gas spheres for maintenance, inspection or modification.

✔ No combustion – no NOx emissions
✔ Recovery of valuable hydrocarbons
✔ Mobile units for fast on-site deployment
✔ 24/7 support for shutdowns and maintenance

The challenge

Before maintenance or inspection can start, storage tanks and gas spheres must be safely degassed.

Operators increasingly face:

  • Strict environmental regulations
  • VOC and NOx emission limits
  • Restrictions on combustion-based degassing
  • Pressure to reduce downtime and maintenance cost

Conventional degassing methods often rely on combustion, creating emissions, product loss and operational complexity.

A safer and more sustainable alternative is required.

The most sustainable degassing solution

The most sustainable degassing solution

Group AQ specializes in cryogenic degassing, using liquid nitrogen to remove and recover hydrocarbon vapors without combustion.

Instead of burning vapors, our system condenses them into liquid form, allowing safe capture and potential product recovery.

Key advantages:

  • No combustion and zero NOx emissions
  • Up to 99.9% VOC reduction
  • Recovery of valuable product
  • Lowest environmental impact
  • Safe preparation for tank entry

Cryogenic degassing is widely recognized as the most sustainable technique for degassing storage tanks and gas spheres.

Mobile degassing units for tanks and gas spheres

Every installation is different. Group AQ operates fully mobile cryogenic degassing units, allowing fast deployment directly at your site.

Our solutions are used for:

  • Storage tanks
  • Tank farms
  • Pressurized gas spheres
  • Petrochemical and chemical plants
  • Terminal maintenance and shutdown projects

Mobile deployment ensures:

✔ Fast start-up on site
✔ Flexible processing capacity
✔ Minimal disruption to terminal operations

Economical degassing with full product recovery

Cryogenic degassing is not only environmentally responsible, but often the most economical degassing method.

By condensing vapors instead of destroying them, valuable product can be recovered and reused.

This results in:

  • Reduced product losses
  • Lower disposal and treatment costs
  • Shorter degassing duration
  • Optimized shutdown planning

For many projects, the recovered product significantly reduces the total cost of degassing operations.

24/7 degassing support for maintenance and shutdowns

Maintenance windows in petrochemical facilities are often tight and inflexible.

Group AQ provides 24/7 degassing services, including support during:

  • Planned maintenance
  • Terminal shutdowns
  • Emergency interventions
  • Weekend operations

Our structured workflow ensures:

  • Rapid technical assessment
  • Clear project planning
  • Fast mobilization of mobile units
  • Safe and controlled degassing
  • Full documentation for compliance

Safety and compliance first

All Group AQ degassing operations are performed in accordance with internationally recognized standards.

Certified according to:

  • ISO 9001 – Quality management
  • ISO 14001 – Environmental management
  • VCA – Safety, health and environment

Our certified equipment and experienced specialists ensure:

✔ Safe vapor handling
✔ Controlled degassing process
✔ Safe tank entry conditions
✔ Full regulatory compliance

Why Group AQ

Operators across the globe rely on Group AQ for safe and sustainable degassing solutions.

  • Mobile cryogenic degassing systems
  • Strategic coverage from Antwerp and Rotterdam
  • Proven non-combustive degassing technology
  • Full product recovery capability
  • 24/7 availability for maintenance projects
  • Strong focus on safety and compliance

Group AQ supports operators in reducing emissions, recovering valuable product and minimizing downtime.

Discuss your inquiry

Tell us about your vapor treatment, degassing or nitrogen service needs and we’ll get back to you promptly with a detailed overview of the solutions we can offer.

Discuss your inquiry

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Need to degas a tank or gas sphere?

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