Pentair biogas upgrading system installed at Norwegian paper mill

Norske Skog, Norwegian leading producer of paper for magazines and newspaper, chose EBA member Pentair Haffmans’ biogas upgrading system to process biogas from the sewage treatment plant of its Saugbrugs paper mill in Halden, Norway.

Norske Skog’s move into biogas production strengthens the mill’s competitiveness, and provides a positive addition to renewable energy usage in the region. The biogas plant is connected to the existing sewage treatment plant and uses sewage sludge from the paper production. Pentair Haffmans supplied a multi-stage membrane-based biogas upgrading system with a raw gas capacity of 600 Nm3/h that is upgraded to approximately 490 Nm3/h of biomethane. The biomethane is compressed to compressed natural gas and sold to an external gas supplier with the intention of using the gas to power a fleet of 70 buses and trucks in the region.

The compact structure of Pentair Haffmans’ biogas upgrading system is a major advantage for easy transport and installation. All components are preassembled on cubic steel skids and converted into a weather-proof building on-site by attaching sidewalls and ceiling panels. The installation is accessible from all sides and even with the compact design there is adequate space to make modifications, repairs or overhauls.

To date, Pentair completed or initiated more than 40 biogas upgrading projects, in the Netherlands, Germany, France, the UK, South Africa, the Philippines, and the USA. The Saugbrugs installation is Pentair’s first project in Scandinavia and marks an important milestone for the company.

Source: Pentair
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