This biogas upgrading installation in Äänekoski, in central Finland, is the first project of HoSt in Finland and is placed at ‘Bioproduct Mill’, a ‘new generation’ bioproduct mill built by bioproducts manufacturer Metsä Fibre.

The HoSt installation upgrades the 250 Nm³/hr produced biogas to 150 Nm³/hr biomethane, which can easily be expanded to 350 Nm³/h biogas and 210 Nm³/h biomethane. The plan is to use the green gas for a CNG filling station, that is likely to be built along the main road. The gaseous CO2 from the upgrading will be used for the neighbouring paper mill which produces approximately 1.3 million tonnes of pulp annually.


Location Äänekoski, Finland
Start construction February, 2017
Capacity 250 Nm³/hr raw biogas (future: 350 Nm³/hr raw biogas)
150 Nm³/hr biomethane (future: 210 Nm³/hr biomethane)
Methane concentration raw biogas 60%
Methane concentration product gas 97%
Efficiency 99,5%

More information

Do you want to receive more information on our biogas upgrading technology or do you want to find out what HoSt can do for you? Don’t hesitate to contact us through [email protected] or call us on +31 (0)53 – 460 90 80.