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Gasification method turns forest residues to biofuel with less than a euro per litre
Date:7/3/2013

According to the new research results of the VTT Technical Research Centre of Finland, lignocellulosic biomass can be used in the production of high-quality biofuels for the price of less than one euro per litre. A new technology developed in Finland allows the transfer of more than half the energy of wood raw materials to the end-product. The technology is considered ready for the construction of a commercial-scale production plant in Europe.

VTT has assessed the techno-economics of the production of renewable liquid transportation fuels from forest residues. The case studies focused on the production of four biofuels using a method based on pressurised fluidised-bed gasification. The fuels studied were methanol, dimethyl ether (DME), Fischer-Tropsch liquids and synthetic gasoline.

The results show that the production of renewable biofuels from lignocellulosic biomass, mainly bark and forestry residues, could achieve an energy efficiency of 50%, depending on the end-product and process conditions. Should the thermal energy produced as a by-product be exploited for district heat or industrial steam, for example, the overall efficiency from biomass to saleable energy products could reach 74%.

Based on the case studies, the research scientists estimated that once commercialised the technology can be used to produce liquid transportation fuel at the cost of 58 /MWh. Converted into gasoline-equivalent price per litre, the estimated production cost would be 0.5.7 /litre. The price of renewable solutions would thus be on a level with the current pre-tax price of fossil transportation fuels, and cheaper than existing imported biofuels.

Each case study design was based on a BTL plant with 300 MW capacity, the equivalent of a large district heating power plant. A biorefinery of this size could produce liquid transportation fuel for about 150 000 cars. The EU has set a target of 10% renewable energy content for the transportation
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Contact: Esa Kurkela
esa.kurkela@vtt.fi
358-207-225-596
VTT Technical Research Centre of Finland
Source:Eurekalert

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