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Polygeneration through gasification utilising secondary fuels derived from MSW (POLYSTABILAT)
Start date: Oct 17, 2008, End date: Apr 16, 2015 PROJECT  FINISHED 

In Osnabrück, Germany, Herhof Recyclingcenter Osnabrueck GmbH (HRO) operates, under patented technology (biological drying), a 90.000 tons/a Municipal Solid Wastes (MSW) recycling plant, where appr. 50% of incoming MSW (45.000 tons/a) is converted into a secondary fuel (marketed under the name Stabilat), currently used in cement plants. A portion of Stabilat (appr. 500 kg/h) will be converted to electricity and heat in a novel gasification plant. The producer gas (LCV≈ 5 MJ/Nm3) will be cleaned in a novel high temperature gas filter and combusted in a gas boiler, the steam generated to run a 0,5 MWe steam turbine. The electricity produced will be fed in the Grid, while waste heat will be utilised in the recycling plant. The off-gases from gas boiler and the liquid effluents (tars and oxygenates) will be guided to the recycling plant waste treatmen systems, while the inert ash will be incorporated in the residues resulting from the operation of the recycling plant. The integrated facility (MSW recycling and energy exploitation of Stabilat) will provide a sustainable solution for the treatment of MSW and will generate renewable energy, and a high quality fuel while safeguarding the environment and the public health. This innovative integration of state-of-the-art technologies has a large potential for duplication in the EU and beyond, achieving the disposal not only of the MSW but also of the resulting by-product streams (such as RDF or SRF fuels). Moreover, the proposed project addresses several EU policies related to renewable energies, energy efficiency, environmental protection, recycling of MSW, etc. Moreover, the coupling of the MSW recycling and the subsequent energy exloitation of by-products streams to electricity and heat will result in significant economies of scale. This, in turn, will result in positive synergistic effects (lower emissions of pollutants, elimination of the need to transport secondary fuels over long distances, reduced capital and operating costs and increased competitiveness).
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