RALEX Membrane Gas Separation

Technology for the upgrading of biogas to biomethane – BioCNG

Production of BioCNG by Membrane gas separation

Custom solution based on in-house made RALEX® units. Gas analyses are done in our laboratories as well.

Experienced and skilled professionals in gas membrane separation.

Regional offices and service partners around the world ensure tailored care for different customers.

Biogas upgrading to biomethane (bioCNG)

Biogas upgrading to biomethane (bioCNG)

From biogas to biomethane

MEGA delivers biogas upgrading units based on membrane gas separation method. Our solution is suitable for agriculture and municipal biogas stations, as well as for wastewater treatment gases.

Our RALEX® BU units cover capacities ranging from 25 m3 to 1000 m3 – from BioCNG production for one's own consumption to biomethane grid injection. By using our biogas separation technology which produces biomethane, an alternative to natural gas, you will contribute to improving the environment while increasing your company's profits.

Biomethane is used under the name BioCNG as fuel for cars, buses, trucks, tractors or is pressed into the gas network and burned in gas boilers.

We have a tailor-made solution for every biogas plant

We have a tailor-made solution for every biogas plant

Are you using a biogas plant only for electricity generation and heating and are you interested in its further potential? We have a solution for you - the biogas separation units for biomethane production. We provide complex services:

  • We will analyze the possibility of biogas production in relation to the maximum efficiency and economic return of the project tailored to your conditions
  • We will carry out pilot testing at the beginning of each project
  • Our team of specialists will help you to optimize the composition of the produced biogas for biomethane / BioCNG processing
Advantages of gas membrane separation

Advantages of gas membrane separation

  • Instalation into existing biogas plant and ability to combine with heat & power production
  • Chemicals free and a zero waste technology
  • Methane recovery 94 – 99,7 % according to customer needs
  • Minimum operating requirements, remote access control from our monitoring centre
  • Final product output capacity range (biomethane) 12,7 – over 500 Nm3/h

Ask our experts for a help with your project
Why buy a mobile unit for biomethane production by MEGA

Why buy a mobile unit for biomethane production by MEGA

  • No building permit is required to install the unit
  • Small built-up area - container design
  • The possibility of expanding the technology capacity
  • Low energy consumption and low operating costs
  • Continuous operation mode and technology start-up within minutes
Lab & pilot testing

Laboratory and pilot testing

We pay attention to every project and offer complex services – gas sample testing, analysis in our laboratories and technology modification by our specialists. Our pilot unit RALEX® BU 12-6 C can be installed in your plant for a trial period.

Products and technologies

RALEX® BU mobile units

RALEX® BU mobile units

MEGA offers its customers tailor-made capacity solutions. We design RALEX® BU biogas units for raw biogas treatment in the range from 25 m3 to 1000 m3raw biogas input and production from 12,7 Nm3/h to 500 Nm3/h of BioCNG. The unit operates in continuous mode, and the product is stored in high-pressure tank storages.

Units include a dispensing device with commercial measurement for direct vehicle filling. Units with a production capacity over 250 m3 also allow the injection of produced biomethane directly into the natural gas network using a compression station.

Our upgrading of biogas to biomethane (BioCNG) projects

BioCNG pro města

BioCNG for cities, Municipal wastewater treatment plant Brno - Modřice

The first bus in the Czech Republic powered by biogas gained from wastewater

The pilot project "BioCNG for cities", carried out together with the Circular Economy Institute, Brno municipal watersystem, and MemBrain, uses gas generated by wastewater treatment as a fuel for public transport. The project was awarded by Smart City Innovation institute.

The BioCNG BU-12 unit was connected to sludge gas in the BVK municipal wastewater treatment plant Modřice. The produced biomethane was refuelled into the DP Brno bus. 36 fillings were made with a total consumption of 1660 kg. The BioCNG unit ran 1068 hours without a single unplanned outage.

The transition from agricultural biogas to sludge gas passed off without any problems. On the contrary, the methane concentration was higher in the sludge gas, and the undesirable oxygen and nitrogen content was very low – therefore the biomethane concentration in the product was high.

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Ask about this project
Případová studie úprava bioplynu na biometan Pustějov

ZEMSPOL STUDÉNKA a.s., Czech Republic

Continuous production of biomethane for the collective farming in Pustějov

MEGA has installed a biomethane separation unit - BioCNG in a biogas plant of ZEMSPOL group, which operates two biogas plants working on the principle of wet fermentation and two-stage anaerobic fermentation. After analysis and laboratory tests, ZEMSPOL willingly provided facilities for the installation of the BioCNG pilot unit for a biomethane production volume of 6,3 Nm3/h at a methane content of 60 % by volume in the biogas input.

Operation parameters were continuously monitored. The BioCNG production unit was in continuous operation mode from spring 2015 to spring 2018, with the methane concentration in the product gas being higher than 95 vol. %. The operation was terminated according to the contractual conditions in July 2018 after incident-free continuous operation.

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Ask about this project

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Our experts are ready to find the best solution for your biogas upgrading project.

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Remote technology diagnostics
Periodical post-warranty checks

MEGA Care reduces downtimes to the necessary technological minimum by active monitoring, prevention and remote adjustments in advance. Periodical inspections at the point of installation provide three days of exhaustive evaluation during reular production, membrane samples are sent to MEGA laboratory for testing to show early signs of scaling or fouling. Inspections to gather hands-on data together with overall parameters monitoring bring necessary information to ensure reliable performance.

More about MEGA Care

MEGA Care reduces downtimes to the necessary technological minimum by active monitoring, prevention and remote adjustments in advance. Periodical inspections at the point of installation provide three days of exhaustive evaluation during reular production, membrane samples are sent to MEGA laboratory for testing to show early signs of scaling or fouling. Inspections to gather hands-on data together with overall parameters monitoring bring necessary information to ensure reliable performance.

More about MEGA Care

Interested? Contact us.

Miroslav Jetleb

Miroslav Jetleb

Sales Manager

+420 602 653 695 miroslav.jetleb@mega.cz

MEGA a.s.

+420 487 888 111 sales@mega.cz

Pod Vinici 87
471 27 Straz pod Ralskem
Czech Republic

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