Leading modular biogas upgrading technology

From biogas to biomethane, a versatile fuel for the clean energy transition

Biogas upgrading involves purifying raw biogas to produce biomethane, a higher-quality fuel that is a renewable substitute for natural gas. Raw biogas is produced through the anaerobic digestion of organic materials, such as agricultural and food waste.

While biogas is a renewable energy source, it contains impurities such as carbon dioxide, hydrogen sulphide, moisture, and other trace contaminants.

Why upgrade biogas?

Biogas upgrading enhances its energy content and makes it suitable for various applications. These include injection into the existing gas grid, use as vehicle fuel or for industrial processes.

rom biogas to biomethane, a versatile fuel for the clean energy transition

Proprietary biogas upgrading technology

Our biogas-to-biomethane technology uses a membrane system to efficiently remove CO2 and achieve maximum levels of methane purity.

Our technology combines best-in-class processes with scalability and adaptability.

Our biomethane has >99% purity, exceeding the industry threshold of >95%
Membrane-based CO2 removal allows for scalability and energy efficiency
Modular design facilitates scalability for different biogas volumes
Flexible systems adapt to biogas specifications and plant layouts
Skid-mounted, plug-and-play units allow for fast installation and commissioning
Our biomethane has >99% purity, exceeding the standard of >95%
Membrane-based CO2 removal allows for scalability and energy efficiency
Modular design allows for scalability at different biogas input volumes
Flexible systems adapt to biogas specifications and plant layout
Skid-mounted, plug-and-play units allow for fast installation and commissioning

How it works

Technical Specifications

Technical Data

ONURAGAS 
-50

ONURAGAS 
-150

ONURAGAS 
-250

ONURAGAS 
-400

ONURAGAS 
-600

Biogas Input flow [Nm3/h]

50

150

250

400

600

Minimal Biogas Input flow [Nm3/h]

30

95

145

240

360

Biomethane production flow [Nm3/h]

34

102

168

272

408

Biomethane production [MW/h]

0.4

1.1

1.8

2.9

4.3

Biomethane Pressure [Bar-a]

16

16

16

16

16

Biomethane Temperature [ºC]

25

25

25

25

25

Featured projects

Catalonia, Spain

This is a cluster of two projects situated on dairy farms. One plant is currently operational, and the other is under development. They will produce more than 10GWh of biomethane annually using primarily cow manure as feedstock.

Vilanant, Spain

The Vilanant plant is the first Bio-G2V-CNG project in Spain. Currently operational, this 0.5 Mwh plant converts manure from a cow farm to produce biomethane for vehicular applications.

Catalonia, Spain

This is a cluster of two projects situated on dairy farms. One plant is currently operational, and the other is under development. They will produce more than 10GWh of biomethane annually using primarily cow manure as feedstock.

Vilanant, Spain

The Vilanant plant is the first Bio-G2V-CNG project in Spain. Currently operational, this 0.5 Mwh plant converts manure from a cow farm to produce biomethane for vehicular applications.

Catalonia, Spain

This is a cluster of two projects situated on dairy farms. One plant is currently operational, and the other is under development. They will produce more than 10GWh of biomethane annually using primarily cow manure as feedstock.

Vilanant, Spain

The Vilanant plant is the first Bio-G2V-CNG project in Spain. Currently operational, this 0.5 Mwh plant converts manure from a cow farm to produce biomethane for vehicular applications.

FAQs

What type of feedstock do you work with?

Our systems are optimised to work with agri-food waste: primarily cow and pig manure, as well as agricultural and food waste.

What do you mean when you say your units are small to medium scale?

Our modular upgrading units can range from 0.4 MWh up to 5 MWh of electrical equivalent output.

Is your biomethane suitable for grid injection?

Yes, our upgrading units produce Bio-CNG with over 99% of methane content that can be injected directly into the gas grid.

Learn more about our upgrading technology

Are you looking for liquefaction solutions?

Liquefaction: The next step to decarbonise the transport industry

After it’s upgraded, biomethane can be liquefied and transported to any location. It can be used as fuel for vehicles, marine vessels or industrial applications.

Our small- to medium-scale, modular liquefaction units work seamlessly with our upgrading technology. Together, they quickly and efficiently produce Bio-LNG of market-leading quality.