Case Study 1 Lahti Gasification Facility, Finland (2013)

Case Study 1 Lahti Gasification Facility, Finland (2013)
  • Waste to Energy

Case Study 1 Lahti Gasification Facility, Finland (2013)

Overview - A new combined heat and power (CHP) waste gasification plant (Kymijärvi II) opened in May 2012 replacing the previous biomass gasifier built in 1998. The plant uses 250,000 tonnes per year of Solid Recovered Fuel, which consists mainly of plastic, wood and paper products unsuitable for recycling. The plant is a result of a successful pilot project delivered by a partnership between Lahti Energy and Metso Corporation. Lahti Energy is a corporation which 100% owned by the City of Lahti. Outcomes - Successful demonstration of the gasification of waste The power plant produces 50 MW of electricity and 90 MW of district heat The plant uses 250,000 tonnes of per year Solid Recovered Fuel (SRF) which is equivalent to 170,000 tonnes of coal The plant supplies power to 87,000 costumers mainly in the Lahti area District heating is supplied to 7,600 costumers mainly apartment blocks and industry Benefits - The use of the fuel, which is produced from waste that is not suitable for recycling, saves on the use of natural resources and reduces CO2, NOx and SO2 emissions. The supply of district heating has reduced heating and electricity bills for local customers. Lower environmental impact as the gasification of biofuels and co-combustion of gases in the coal-fired boiler cuts CO2, SO2 and NOx emissions. Success Factors - Pilot scale plant was developed and proven before full scale commercialisation. Pilot stage helped to determine optimum fuel characteristics Project has been successful where others have failed, due to stringent fuel specifications Long term contracts guarantee security of supply of fuel Technical barriers of gas cleaning overcome
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