Scania tests show bio-based synthetic diesel sharply cuts Emissions
Scania, one of the world's leading manufacturers of trucks and buses for heavy transport applications, and of industrial and marine engines, announces it is joining forces with Neste Oil in Finland to try out a new low-emission biobased diesel fuel. Produced in Neste's NExBTL (Next Generation Biomass-to-Liquids) plant in southern Finland, the new fuel is tailored to diesel combustion. First findings show efficiency remains high, while NOx emissions are down almost 20% and particulates close to 30% compared to standard diesel. In addition, the fuel reduces fossil CO2 emissions by up to 80%. The news is important for Biopact, because Neste Oil's next-generation biodiesel may be produced from tropical vegetable oils in the near future.
Six Scania city buses form part of the trial. Four of them will run on 100% NExBTL and two on normal diesel. The project also involves tests with various mixes on some 100 vehicles operated by Posten Logistik, the logistics division of Swedish Post, and 2 or 3 ships in the Stockholm archipelago operated by Waxholmsbolaget.
bioenergy :: biofuels :: energy :: sustainability :: ethanol :: biodiesel :: biomass-to-liquids :: synthetic diesel :: emissions ::
Bioethanol
Another attractive renewable heavy vehicle fuel on the market today is bioethanol. Emissions of fossil CO2 are reduced by up to 90%, it is readily available, production is booming, the technology is firmly established and it gives very low emissions. Scania’s third generation ethanol engines achieve the same efficiency as a conventional diesel engine, while meeting emission levels according to Euro 5, which will be introduced in 2009, as well as the tougher EEV standard, which has been adopted for city traffic in some large European urban areas.
Bioethanol has been used as fuel for adapted diesel engine in Scania city buses sine the late 1980s with excellent environmental results, according to Stockholm Public Transport (SL). Fossil carbon dioxide emissions are reduced by up to 90% for ethanol produced from sugar cane in Brazil.
“There is no reason to wait ‘a few more years’ for better alternatives. With the renewable fuels and the technologies available today we are off to a head start, making a significant contribution in reducing carbon dioxide emissions. Once new solutions, e.g. hybrid technology and potential new fuels, have proven their worth, they can also contribute by further speeding up the process,” concludes Mr Johansson.
Six Scania city buses form part of the trial. Four of them will run on 100% NExBTL and two on normal diesel. The project also involves tests with various mixes on some 100 vehicles operated by Posten Logistik, the logistics division of Swedish Post, and 2 or 3 ships in the Stockholm archipelago operated by Waxholmsbolaget.
"Scania's laboratory tests corroborate that bio-based synthetic diesel has great potential. Simply switching to such fuel from standard diesel can significantly improve emissions. The possibility of mixing it freely with standard diesel makes the fuel interesting for old vehicles and engines as well." - Hasse Johansson, Group Vice President R&D at ScaniaScania has carried out laboratory tests to examine the environmental effects of other diesel fuels. The tests prove that the composition of a fuel has a direct bearing on its environmental performance and that there is scope to optimise engines for different fuels. Comparisons are made with reference used for certification according to the Euro 4 exhaust emission standard:
- Swedish low-emission diesel introduced on the market in the early 1990s, in itself cuts NOx by 8% and particulates by 24%.
- Synthetic diesel fuel gives considerably lower emissions of nitrogen oxides (down 18%) and particulates (down 28%). Synthetic diesel can be produced from natural gas (GTL, gas-to-liquid) or biomass (BTL, biomass-to-liquid).
- With fossil carbon dioxide cut by up to 80%, biomass-to-liquid fuels have the best environmental properties of all synthetic diesel fuels.
bioenergy :: biofuels :: energy :: sustainability :: ethanol :: biodiesel :: biomass-to-liquids :: synthetic diesel :: emissions ::
Bioethanol
Another attractive renewable heavy vehicle fuel on the market today is bioethanol. Emissions of fossil CO2 are reduced by up to 90%, it is readily available, production is booming, the technology is firmly established and it gives very low emissions. Scania’s third generation ethanol engines achieve the same efficiency as a conventional diesel engine, while meeting emission levels according to Euro 5, which will be introduced in 2009, as well as the tougher EEV standard, which has been adopted for city traffic in some large European urban areas.
Bioethanol has been used as fuel for adapted diesel engine in Scania city buses sine the late 1980s with excellent environmental results, according to Stockholm Public Transport (SL). Fossil carbon dioxide emissions are reduced by up to 90% for ethanol produced from sugar cane in Brazil.
“There is no reason to wait ‘a few more years’ for better alternatives. With the renewable fuels and the technologies available today we are off to a head start, making a significant contribution in reducing carbon dioxide emissions. Once new solutions, e.g. hybrid technology and potential new fuels, have proven their worth, they can also contribute by further speeding up the process,” concludes Mr Johansson.
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