Hydrogen Recovery and Purification by Pressure Swing Adsorption (PSA)

Adsorption hydrogen units are designed to produce high-purity hydrogen from a stream of hydrogen-bearing gas. Grasys PSA units produce hydrogen with a purity of up to 99.999% from synthesis gases produced by the steam conversion of light hydrocarbons, as well as from off-gases from various industrial processes.

Hydrogen Recovery and Purification by Pressure Swing Adsorption (PSA)


up to 150,000 m³/h

Hydrogen purity

до 99,999%


up to 5.5 MPa

Hydrogen recovery

up to 90%

Product Images

Unit Schematic Diagram

Installation scheme PSA

Capacity, m³/hup to 150,000

Hydrogen purity, %up to 99.999

Pressure, MPaup to 5.5

Hydrogen recovery, %up to 90

  • Oil refining processes

    Applications related to hydrogen recovery and concentration in refinery cycles.

    Concentration of hydrogen from hydrotreating, hydrocracking, isomerisation and catalytic reforming off-gases, reducing the concentration of undesirable impurities to the required level.

  • Chemical and petrochemical processes

    Recovery and concentration of hydrogen from pyrolysis, alkane and alkene dehydrogenation, methanol production off-gases and other process streams.

  • Ammonia production

    Separation of hydrogen from nitrogen, methane and argon in ammonia-bearing purge gas streams.

  • Synthesis gas production

    Production of high-purity hydrogen from synthesis gas with almost complete removal of CO and CO2.

  • Preparation of all necessary process design calculations.
  • Engineering design activities.
  • Manufacturing a set of equipment.
  • Commissioning.
  • Service maintenance.
  • High equipment installation availability, significantly reducing plant commissioning time.
  • The units are designed to operate under challenging temperature and climatic conditions.
  • The use of high quality materials ensures a long operating life of the unit.
  • Automatic operation of the unit.
  • Easy to use.
  • Minimal operating staff.
  • Minimum start-up and warm-up time to full load.

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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