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Wärtsilä to Deliver Nordic Countries’ Largest Biogas Plant to Provide Fuel for Buses

Wärtsilä has been awarded the order to supply a biogas liquefaction plant that will produce LNG fuel for public transport vehicles, mainly in Norway. The supply contract was signed in December 2015, and is with Purac Puregas AB, based in Kalmar, Sweden.

The Wärtsilä plant will be installed at the paper mill in Skogn, Norway and will convert the cleaned biogas from fishery waste and residual paper mill slurry into LNG. The system has been specially designed to liquefy small methane-based gas streams. The environmental benefits of delivering renewable liquid biogas fuel are enhanced by the fact that sulphur oxide (SOx) and particle emissions are virtually eliminated, while any released CO2 has zero environmental impact since it is part of the existing circulatory CO2.

“The plant at Skogn will be privately operated and, with a capacity of 25 tons of liquid biogas per day, will be the biggest in the Nordic countries,” says Øystein Ihler, Development Director of Climate and Energy Programme for the City of Oslo.

Wärtsilä is delivering the system on a fast-track basis and the on-site installation is scheduled to be completed within a 15 month time-frame.