Scandinavia boasts "world's first" biogas-powered train

[Fledermaus]

The train refuells in Vastervik and forms part of a growing local biogas market, which includes a 65-strong fleet of buses, and several taxis and rubbish trucks in the town of Linkoping. The train has a range of 600 kilometres.

The biogas used by the train is produced by decomposing waste meat from a local abattoir in an oxygen-free environment over around 30 days. The gases formed in this process, mostly methane and carbon dioxide, arte then collected and the methane content boosted to around 97 %, which is done by removing most of the carbon dioxide, to allow it to be used as engine fuel. Biogas production is located at Vastervik’s sewage treatment plant, Lucernaverket.

http://www.renewableenergymagazine.com/energias/renovables/index/pag/biogas/colleft/colright/biogas/tip/articulo/pagid/18096/botid/76/