Liquid biogas plant set for Sweden
Vehicle manufacturer Volvo’s subsidiary Terracastus Technologies and waste management firm Nordvastra Skanes Renhallningsbolag plan to jointly construct a liquid biogas plant in southern Sweden.
In December, the two companies signed a letter of intent to begin a joint company for upgrading biogas to liquefied biogas. The first project will be located outside of Helsingborg, at the site of NSR’s landfill.
Half of the biogas produced will be generated by an anaerobic digester. About 140,000 tonnes of waste will be required at the plant each year, to produce the equivalent of 15 million litres of diesel a year.
Terracastus was established in 2007 to manage the commercial development of CO2 Wash, a system that transforms raw biogas into high-quality liquid biomethane.
Terracastus technology uses the CO2 in the raw biogas as a cleaning agent for removal of contaminants such as volatile organic compounds, sulphur and siloxanes.
Prior to establishing Terracastus, Volvo helped manage extensive testing and development of CO2 Wash including the construction of a successful pilot plant at the Burlington County Landfill in Columbus, New Jersey.
The project at Burlington County became the first to accomplish a long sought goal of the landfill industry—continuous conversion of landfill gas-to-liquid methane truck fuel used in regularly scheduled commercial refuse collection. During the project, sample trucks accumulated more than 600 hours of operation using the fuel, and post analysis showed no degradation of engines.
Construction is slated to begin the second half of 2010, with completion on track for Q3 2011.