Membranes for Hydrocarbon Gases Treatment


  • Impoverishment of CO₂, hydrogen sulfide;
  • Drying of natural and other gases (water dew point varying from -10°С and below);
  • Reducing inert gases concentration;
  • Increasing methane content in colliery gas.
Membranes for Hydrocarbon Gases Treatment

Natural Gas Treatment process based on Grasys membrane

Membranes for Hydrocarbon Gases Treatment

Diameter, " 12

Feed gas pressure, MPa up to 13.0

Membrane pressure drop, MPa up to 10.5

Feed gas temperature, °С 30 to 80

The principle of membrane separation of a gas mixture is based on the different penetration rates of its components through a polymeric membrane due to the differential partial pressures of the gas on either side of the membrane.

Membrane gas separation technology is widely used throughout the world to extract nitrogen from air, extract hydrogen from hydrogen-bearing gas mixtures, and extract carbon dioxide and water from natural gas.

Grasys Membrane Cartridges

  • High selectivity
  • High specific membrane surface area
  • Wide pressure range (up to 13 MPa)
  • Low pressure loss during separation
  • Excellent chemical stability

Grasys Cartridge-Based Membrane Units

  • Low capital and operating costs
  • Easy to install and maintain
  • Compact unit dimensions
  • Removal of several impurities in a single process cycle
  • Environmentally friendly technology (no chemicals used)


  • Hydrocarbon gases treatment to meet regulatory requirements for supply to the gas transport network
  • Hydrocarbon gases treatment to meet the Customer’s requirements for use as fuel gas (dehydration, CO2 removal, sulphur removal)
  • Reduction of the concentration of undesirable components to reduce the load on downstream equipment

Grasys Solutions

  • Production and supply of membrane cartridges
  • Replacement of membranes from other manufacturers
  • Design and manufacture of membrane units
  • Maintenance, repair, upgrading of membrane units
  • Complete turnkey projects (EPC contracts)

Natural Gas Processing Units

  • Hydrocarbon gases treatment to meet the requirements of regulatory documentation for delivery to the gas transmission network;
  • Hydrocarbon gases treatment to meet the Customer’s requirements (drying, sulfur and carbon dioxide removal);
  • Impoverishment of unwanted components to cut load on downstream equipment.
Natural Gas Processing Units

Grasys Manufacturing Facility

Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility
Grasys Manufacturing Facility

The main specialisation of the production complex: the manufacture of high-efficiency hollow-fibre gas separation membrane cartridges.

A unique research and production complex is located in the territory of the Dubna Special Economic Zone of Technical-Innovative Type. One of the most strategically important areas is the production of membrane cartridges for hydrocarbon gas separation, including the helium concentrate separation.

Booklet. Grasys Manufacturing Facility.Download PDF; 1,33 МБ

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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