Qvidja Kraft has the first pilot plant where wood gas is converted into biomethane. In the wood chip gasifier wood is being gasified instead of burned. Wood gas includes a lot of carbon monoxide besides hydrogen and carbon dioxide. Microbe reactor produces hydrogen and carbon dioxide out of carbon monoxide and water and then converts them into biomethane.
Biomethane is being produced from wood waste, such as wood chips and branches, so that the energy is gained in a sustainable fashion. When raw material is waste wood instead of edible material, biomethanation does not compete with food production. Read more about this from environmental effects.
Producing biomethane from wood gas multiplies the gain of biogas.