Degassing & Nitrogen services

AQ Degassing – Global Leader in Mobile
& Cryogenic Degassing Services

Since 2011, AQ Degassing has been delivering 24/7 mobile vapor treatment services worldwide. With an extensive fleet of mobile vapor recovery units and advanced vapor treatment systems, we provide tank degassing, barge degassing, vessel degassing and railcar degassing services in ports and terminals across the globe.

As the only provider in Europe offering sustainable mobile cryogenic degassing services, AQ Degassing leads the industry in environmental performance, VOC reduction and product recovery. Our fully mobile vapor treatment systems ensure rapid deployment, minimal emissions and maximum operational efficiency, wherever your operation is located.

Our Equipment

AQ Degassing operates a versatile fleet of mobile vapor treatment technologies, allowing us to match the right solution to every operational and environmental challenge from storage tank degassing to vessel degassing and purging services. Our approach combines performance, safety and compliance in one streamlined package.

Mobile Cryogenic Units (Cirrus)

Our cryogenic systems deliver state-of-the-art vapor recovery with up to 99.9% VOC reduction, transforming emissions into reusable product through a sustainable, circular process. Fast, efficient and without significant limitations, they set a new standard for modern vapor treatment.

Mobile Scrubbers

For vapors containing strong acids or bases, our mobile scrubbers provide effective chemical neutralization in a compact and straightforward setup. Although they generate wastewater that must be managed responsibly, they remain indispensable for targeted and reliable vapor handling.

Mobile Flares & Vapor Combustion Units

When complete vapor destruction and broad applicability are required, our mobile flares and combustion units offer high-temperature incineration supported by auxiliary gas. While they produce CO₂ and NOx emissions and do not allow for product recovery, they deliver unmatched versatility and operational strength.

Supporting Equipment

A range of additional tools including mobile evaporators (ambient or steam), activated carbon units and cryogenic LIN (liquified nitrogen) tanks enhances our ability to adapt each setup to the exact technical and environmental demands of your project.

Together, these technologies form a fully integrated and flexible solution set, ensuring AQ Degassing consistently delivers safe, efficient and compliant vapor treatment tailored to your needs.

Cryogenic Technique Explained

At the heart of our cryogenic vapor treatment process is the mobile cryogenic unit (Cirrus), supported by liquid and vaporized nitrogen. Together, they form a clean, efficient and fully non-combustive system that achieves up to 99.9% VOC emission reduction, the most sustainable vapor treatment method available in Europe.

COOLING WITH LIQUID NITROGEN

The process begins inside the cryogenic unit, where liquid nitrogen (LIN) is used as an ultra-low-temperature cooling medium. As product vapors enter the unit, the LIN rapidly cools the incoming stream, enabling the condensation of vapors without combustion, additives, or chemical reactions. This pure cooling step is the foundation of the cryogenic method, ensuring maximum efficiency with minimal environmental impact.

THE ROLE OF VAPORIZED NITROGEN

As the liquid nitrogen warms, it vaporizes and this nitrogen gas plays several critical roles in the process. First, it powers and steers the internal valves and controls of the cryogenic unit and supports defrosting when required to keep the system running continuously and safely. Second, the vaporized nitrogen is used to push product vapors out of the source medium, whether it is a storage tank, sphere, barge, vessel, ISO tank, or rail tank car. This dual action makes nitrogen a clean, safe and efficient driver of the entire vapor treatment operation.

CONDENSATION AND PRODUCT RECOVERY

Once inside the cryogenic unit, the product vapors are cooled to the point where they condense into liquid. This recovered condensate, now a usable product is returned to the client wherever possible. When required, specialized third-party handlers manage the remaining condensate safely and responsibly. Throughout the entire process, no combustion occurs, eliminating the formation of CO₂, NOx, or other harmful by-products and allowing for a circular, low-emission recovery loop.

KEY FEATURES OF CRYOGENIC VAPOR RECOVERY

Our cryogenic vapor treatment technology stands out for its performance, safety and sustainability. The main advantages include:

High capacity

Each unit can process up to 1,000 m³/h, with the ability to scale capacity by operating multiple systems in parallel.

Sustainable & circular

Achieves up to 99.9% VOC reduction while offering full product recovery and zero combustion.

Mobile & fast

Fully mobile systems that can be deployed rapidly at any port, terminal, or industrial site.

Versatile application range

Capable of handling an exceptionally wide variety of products.

Handles complex gas mixtures

Designed to process multi-component and difficult vapor streams.

Dual Functionality

Combined degassing and nitrogen inerting in a single operation.

Certified & Safe

All key components meet CE PED 10 bar Cat. IV and Ex II 2G T4 ATEX certification standards.

Compatible

Easily integrates with alternative in-line or mobile vapor recovery units for flexible process setups.

THE MOST SUSTAINABLE VAPOR TREATMENT METHOD IN EUROPE

With unmatched VOC reduction, full product recovery, zero combustion and rapid global deployability, our cryogenic vapor recovery process offers the most sustainable, efficient and environmentally responsible vapor treatment solution available in Europe. It is a proven combination of technical excellence, operational safety and environmental care, setting a new benchmark for modern degassing operations.

Areas of Application

AQ Degassing delivers advanced industrial vapor treatment and degassing services across three core application areas, supporting ports, storage terminals, refineries, logistics hubs and chemical production sites. Our mobile, high-performance systems built around cryogenic vapor recovery provide safe, compliant and sustainable solutions tailored to each operation.

Storage Tanks, Spheres, ISO Tanks, Rail Cars & Pipelines

Whether preparing for loading, maintenance, or cleaning, AQ Degassing ensures that tanks and process equipment are safely and efficiently degassed. Using our cryogenic technique, vapors are captured, condensed and fully recovered as product eliminating waste, emissions, and unnecessary disposal steps. From large storage tanks and spheres to ISO tanks, rail tank cars and pipelines, we handle the full spectrum of industrial degassing needs.

AQ Degassing operates from it’s own fully permitted terminals in Antwerp and Houston, enabling fast, compliant ISO tank and railcar degassing with maximum efficiency and minimal operational disruption.

Barge & Vessel Degassing


For inland barges and seagoing vessels, AQ Degassing provides compliant, high-capacity degassing services. For the barge operations we are fully aligned with CDNI legislation, the framework designed to reduce VOC emissions across the Rhine and inland waterways region.

We operate from five fully permitted sites in the Port of Antwerp-Bruges, with additional sites under development in Rotterdam, Amsterdam and Germany to support growing regulatory demands. During the cryogenic process, condensed product is managed safely through certified third parties, ensuring full legal compliance and maintaining the highest environmental standards.

Process Support & Loading / Unloading Operations

In continuous production, storage, or logistics environments, vapor streams can be generated or displaced at any stage. AQ Degassing offers flexible process support through mobile cryogenic vapor recovery units that act as temporary or permanent emission control systems.

Our units capture vapors before release maintaining safe working conditions, ensuring compliance and eliminating unnecessary emissions. They can function as standalone mobile VRUs or integrate seamlessly with existing on-site vapor recovery systems, offering adaptability during operations, or supporting loading and unloading processes where vapor flow is high.

Across all three applications, AQ Degassing combines mobility, efficiency and environmental responsibility delivering the right vapor treatment solution wherever and whenever it’s needed.

Nitrogen as a service

AQ Degassing is a trusted specialist in nitrogen inerting and cryogenic nitrogen deployment, offering both liquid nitrogen (LIN) and vaporized nitrogen for a wide range of industrial applications. With multiple combinations of LIN tanks and high-capacity vaporizers, we can deliver nitrogen flexibly and efficiently across Europe and the USA, adapting to the operational demands of terminals, plants, logistics hubs and offshore environments.

Our nitrogen systems are fully mobile, rapidly deployable and scalable to high-volume supply requirements making AQ Degassing a reliable partner for both planned operations and urgent interventions.

Our Nitrogen Services Include:

Inerting, Blanketing & Purging

We supply high-purity nitrogen (99.99%) at capacities exceeding 3,000 m³/h per LIN tank + vaporizer setup, with the option to scale upward using multiple units. These services support the safe preparation of storage tanks, spheres, barges, vessels, ISO tanks and rail tank cars, ensuring oxygen-free conditions for maintenance, loading, unloading or product transfer.

Upgassing Services

AQ Degassing provides controlled upgassing for systems containing LNG, propylene, propane, VCM and other sensitive products. Our precise nitrogen flow control ensures safe, stable and consistent product conditioning.

Fire safety support

Nitrogen’s oxygen-displacing properties make it highly effective for fire prevention and firefighting support. AQ Degassing offers stand-by nitrogen services to maintain an inert atmosphere and prevent ignition and active support during firefighting operations, helping to suppress oxygen and control hazardous atmospheres.

We deliver controlled cryogenic cooldown for LNG storage tanks, piping systems, and related infrastructure — supporting safe commissioning, maintenance, and start-up activities.

Cryogenic Cooling for LNG

We deliver controlled cryogenic cooldown for LNG storage tanks, piping systems and related infrastructure supporting safe commissioning, maintenance and start-up activities.

Mobile Cryogenic Storage

Our mobile LIN storage solutions provide temporary on-site nitrogen supply for operations requiring flexible, short-term or redundant cryogenic capacity. AQ Degassing’s nitrogen services are designed to enhance operational safety, process stability and environmental performance across industries.

Contact us to learn how we can support your operations with flexible, high-capacity and temporary or permanent nitrogen supply options.

Certification

Health, Safety, Environment & Quality Management

At AQ Degassing, quality, safety and environmental responsibility are inseparable from technical excellence. Every vapor treatment and degassing operation we perform is supported by a fully certified management system that meets the requirements of ISO 9001, ISO 14001, and VCA*. These certifications ensure that our services consistently align with the highest international standards for performance, compliance and sustainability.

Quality – ISO 9001

AQ Degassing operates under a rigorously implemented ISO 9001 Quality Management System, ensuring that all services meet customer expectations, regulatory requirements and site-specific criteria. Through structured procedures, internal audits, and continuous improvement processes, we guarantee precision, consistency, and operational excellence. Our commitment is simple: to deliver safe, efficient and high-quality degassing solutions every time.

Environment – ISO 14001

Environmental stewardship is a core principle of our company. Our ISO 14001 Environmental Management System ensures that all activities are carried out with minimal environmental impact, strict compliance and responsible resource use.

Our environmental approach includes:

  • Using cryogenic, circular vapor recovery systems achieving 99.9% VOC reduction
  • Avoiding unnecessary product transport by performing mobile operations at the source
  • Implementing strict containment procedures to prevent releases to soil, water, or air
  • Collaborating with certified partners for safe condensate and waste handling

These measures solidify AQ Degassing’s position as a leader in sustainable, low-emission vapor recovery across Europe and beyond.

Safety – VCA*

Safety is the backbone of every AQ Degassing operation. With VCA* certification, we ensure that our teams, equipment and procedures consistently meet the highest safety benchmarks.

Our safety culture is built on:

  • Professionally trained and certified operators
  • Frequent toolbox meetings and safety briefings
  • Fully certified and ATEX-compliant equipment
  • Regular inspections, audits, and preventive maintenance
  • Continuous learning through incident analysis and risk assessments

This results in zero-incident operations and maximum reliability for our customers and our people.

Our Continuous QHSE Commitment

At AQ Degassing, certification is not a formality, it is the foundation of how we operate. Our QHSE team drives ongoing training, performs regular audits and actively engages employees to elevate safety, quality, and environmental performance every day.

Our certifications reflect our promise to provide mobile degassing and vapor recovery services that are safe, compliant, efficient and sustainable for clients across the globe.

Our Differentiators Summarized

At AQ Degassing, we combine technical expertise, cutting-edge technology and a relentless commitment to sustainability to deliver the most advanced vapor treatment and degassing solutions on the market.

Sustainable solutions

We are Europe’s only provider of cryogenic, circular vapor recovery, achieving 99.9% VOC reduction with full product recovery the cleanest and most sustainable method available.

Extensive equipment fleet

Our broad range of mobile degassing systems, vapor treatment technologies, and mobile vapor combustion units ensures we always deliver the right solution for every operation.

In-house expertise

With more than two decades of engineering and operational experience, we bring deep industry knowledge and proven reliability to every project.

24/7 Availability

We operate around the clock, offering rapid response from inquiry to completion. Reliability and readiness define our service.

Unmatched quality

From planning to execution, every step meets the highest standards of precision, safety, and compliance, ensuring consistent excellence across all operations.

Global reach

With operational centers in Europe and the United States, we support worldwide mobile deployment, wherever and whenever our clients need us.

Together, these strengths make our cryogenic vapor treatment technique the most sustainable, efficient, and environmentally responsible solution available in Europe and USA, setting a new benchmark for modern degassing services.

Our Operations in Practice

At AQ Degassing, we combine certified technology, in-depth expertise and operational precision to deliver safe, compliant and sustainable vapor recovery solutions. Each project demonstrates our ability to respond quickly, minimize downtime and achieve measurable results whether it involves storage tanks, vessels, or process systems.

Wat kunnen wij voor u doen?

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.

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