Modular (Containerized) Nitrogen Generators

High-tech modular (containerized) generators are designed to recover nitrogen from atmospheric air using membrane or adsorption technology. The equipment of the category consists of a single containerised module containing all the necessary components. Nitrogen generation plants can vary in size, production capacity, gaseous product purity and discharge pressure.

Modular (Containerized) Nitrogen Generators


up to 3,000 m3/h

Nitrogen purity

up to 99.9995%

Warm-up period

up to 20 minutes

Operating temperature

–60 to +50 °C

Modular Nitrogen Generators Specifications

Modular nitrogen generators can vary in size, production capacity, gaseous product purity, and discharge pressure. In other respects, the equipment package is standardised and characterised by common specifications. The plant standardised module consists of the following key items:

  • A compressor to compress the incoming atmospheric air;
  • A filtration system;
  • A gas separation unit to produce nitrogen with a purity of up to 99.9995%;
  • Receivers, etc.

Automatic ventilation, heating, fire suppression, interior and emergency lighting systems, etc., are installed inside the modular nitrogen generation plant. The entire package ensures reliable, trouble-free and long-lasting operation of the plant. Depending on the purpose of the plant and the customer's requirements, Grasys can supply membrane or adsorption type plants with a capacity of up to 3,000 m³/h and a nitrogen purity of up to 99.9995%.

Product Images

Benefits of Modular Units

Grasys works with leading component suppliers to ensure that its nitrogen and other gas separation plants are robust and long-lasting. We offer tailor-made design and high-quality warranty and maintenance services.

Modular (containerized) nitrogen generators offer many advantages. They are:

  • Mobile. The unit can be easily transported to any job site, which is particularly convenient within the confines of large enterprises.
  • Independent of weather conditions. The compact systems are designed to operate at extreme low and high temperatures from –45 °C to +40 °C.
  • Ready for use. The plant just needs to be plugged in and it is ready to produce gas.
  • Fully automated and autonomous, requiring no operator presence or intervention.
  • The economic benefits and low operating costs ensure a low cost of the nitrogen produced.
  • The system can be started up and shut down quickly.
  • The plant is relatively compact in size and light in weight.
  • Reliable and safe long-term continuous operation.
  • Tailor-made plant design for each customer, with the option of membrane or adsorption technology, taking into account all the specifics and operating conditions as well as the requirements for gas purity and flow rates.

The purchase of a modular (containerized) nitrogen generator is a worthwhile investment in the development and modernisation of any production facility using gaseous nitrogen. Grasys units have an excellent track record in the largest industrial and mining companies in Russia and the CIS.

Product Design Options

Fixed Design

Free equipment placement, on-skid or on-platform design.

Packaged Modular (Transportable)

Modular container or sea container design. Operation in various climatic zones.


Designed on a trailer, skids, as well as in a self-propelled version based on the KamAZ and URAL chassis.

Prefabricated Building

Modular frame building using light steel thin-walled structures and sandwich panels.
Тех. характеристики

Nitrogen purity, %up to 99.9995

Volume flow rate of output gas mixture, m³/h*up to 3,000

Pressure, atmup to 350

Operating temperature, °C−60 to +50

General Description

Grasys manufactures air mixture separation units based on the latest scientific advances in membrane and adsorption gas separation. A key advantage of Grasys membrane nitrogen generation systems used in modular nitrogen generation plants is their high reliability, unpretentious operation and ease of maintenance.

The plants are recommended by the State Technical and Mining Inspectorate (Gosgortechnadzor) for drilling, development, repair and operation of gas and oil wells, exposure of product formations, repair and operation of pipelines and reservoirs.

Modular (containerized) nitrogen generators combine all the advantages of the Grasys nitrogen generation units and are supplied fully operational in a standard 20ft or 40ft container. On request, the plant can be supplied in a custom-sized containerised module, or in a trailer-mounted, skid-mounted or self-propelled version.

The use of compressor equipment and instrumentation from leading European and US manufacturers, an advanced smart monitoring and control system and the perfect design of the gas separation unit ensure exceptional reliability, guaranteed performance and serviceability of Grasys nitrogen generation plants. The nitrogen plant has an operating life of more than 20 years.

Applications of Grasys Modular Nitrogen Generators

  • Creating an inert atmosphere in various processes at remote facilities
  • Ensuring explosion and fire safety in various processes at remote facilities
  • Testing and purging of pipelines and equipment
  • Cleaning of process reservoirs
  • Preventing oxidation processes
  • Nitrogen fire extinguishing
  • Process catalyst regeneration
  • Product packaging in a nitrogen atmosphere
Система управления и контроля

Advanced, Smart GRASYS Intelligent Control-8 Control and Monitoring System

The advanced, smart GRASYS Intelligent Control-8 monitoring and control system ensures the simplest and most convenient control of the GRASYS modular nitrogen generator.

The GRASYS Intelligent Control-8 monitoring and control system provides:

  • Full control of all plant systems;
  • Manual, automatic and remote control options;
  • The ability to integrate the unit's control system into the factory-wide control system;
  • Emergency interlocks to protect against falling outside the permitted limits of key process parameters;
  • Switching the plant to standby mode under zero nitrogen consumption;
  • A wide range of additional options, including the ability to control unit parameters via the Internet;
  • Archiving the main technical parameters of the plant;
  • The control panel is equipped with an active LCD display and shortcuts to access the most important functions.

Benefits of Grasys Modular Nitrogen Generators

  • Exceptional reliability and high build quality based on extensive manufacturing experience
  • Perfect module design
  • Advanced, smart GRASYS Intelligent Control-8 control and monitoring system
  • Using components from the world's leading manufacturers
  • Minimum time required to warm up and start-up intermittently used plants (accelerated warm-up of equipment ensures quick start-up after downtime under the heating off conditions)
  • Supplied fully operational in a standard container
  • Comfortable working conditions for staff during routine maintenance, convenient maintenance at all seasons and in all weather conditions, storage facilities for tools, spare parts and accessories, calibrating gas mixtures, etc.
  • Dust and moisture proof, no condensation
  • Fire safe, vandal proof
  • Can be transported by all land and water modes of transport
  • Long, trouble-free operation
  • High energy efficiency
  • Small-sized, lightweight
  • Low cost of generated nitrogen
  • Low operating costs
  • Long operating life of the plants

Operating Procedure When Dealing With R&P Co. Grasys


Submit a request on the site or reach our specialist by phone


Grasys expert speaks to you and finds out your needs


You fill out a questionnaire with the desired equipment parameters


Our expert prepares a quotation with the most efficient solutions to your application. Contract to be concluded


We perform engineering, designing, manufacture equipment with its further testing and placing into service, etc


We ship equipment to the operational location and provide a package of documents


We are engaged in start-up operations and equipment commissioning


We provide aftersales service to ensure equipment efficient performance and reliability excellence (optional)

Advantages of Cooperating with R&P Co. Grasys

High-tech Russian manufacture

Implementation of import substitution programs

Hands-on experience in implementing over 1500 projects within 20 years

Manufacturing equipment of any size and level of sophistication

Turnkey projects (EPC-contracts)

Prompt technical support

Information contained herein does not constitute а public offer

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