What is bio-LNG?

Bio-LNG is a biofuel made by processing organic waste flows, such as organic household and industrial waste, manure, and sewage sludge. When anaerobic digestion of organic waste occurs, biogas is emitted in the process. The main components in this biogas are methane (CH4) and carbon dioxide (CO2). To make bio-LNG, the methane is separated from the carbon dioxide and other critical components, and then liquefied. This process, which is very complex, increases the energy density 600 times and makes the biofuel ideal for heavy-duty and maritime transport.

Advantages of bio-LNG

Bio-LNG is a practically carbon neutral biofuel. As a renewable replacement for LNG (Liquefied Natural Gas), bio-LNG offers similar advantages as LNG does versus diesel, including:

    • Reduced carbon dioxide emission
    • Lower engine sound
    • Lower nitrogen oxide emission
    • Significantly less pm (particulate matter) emission
Reduce CO2, NOx, pm, and engine sound with bio-LNG

Well-to-wheel, the GHG emissions balance of bio-LNG can be even negative. This is a result of the separation of biogas into methane and carbon dioxide. Nordsol captures the carbon dioxide for reuse, so it is not released into the atmosphere.

Well-to-wheel comparison bio-lng

The future needs bio-LNG

The European Green Deal requires a transition from fossil energy sources to renewable sources. Bio-LNG is the only available option to decarbonize maritime and heavy-duty road transport today. As a result, demand for bio-LNG is increasing fast. With sufficient production, bio-LNG can completely replace fossil LNG.


Feedstock availability is sufficient

Agriculture and waste are the two largest potential feedstocks for biomethane production, which is the basis of bio-LNG. Studies show that there is enough feedstock available to fuel fast growth of bio-LNG. In 2020, annual biomethane production in Europe was about 3 bcm (billion cubic meters)*. With the available sustainable feedstock, potential biomethane production in 2050 is estimated at about 100 bcm. This is twice the estimated amount of biomethane needed to service the demand for bio-LNG in 2050.

* Source: EBA report: “BioLNG in Transport: Making Climate Neutrality a Reality”

Thumbs up for bio-LNG

EU supports bio-LNG

The EU Renewable Energy Directive (REDII) establishes a policy for the production of energy from renewable sources. Bio-LNG obtained from 100% waste complies with this policy. The EU also recognises biogas and bio-LNG as important tools to prevent methane emissions from the agriculture and waste sector.


Bio-LNG is sometimes called liquefied biomethane (LBM) or liquefied biogas (LBG). These are three different names for the same product. So where do these names come from?

LNG stands for liquefied natural gas. Natural gas is composed of about 95% methane, whereas LBM and bio-LNG are composed of about 99,8% methane. Therefore, technically the name liquefied biomethane is a good description of the product. However, as this liquefied biomethane is a biofuel for LNG engines and used to replace fossil LNG, the name bio-LNG is the most commonly used name.

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