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Fuel-Cycle Energy and Emission Impacts of Ethanol-Diesel Blends in Urban Buses and Farming Tractors.
| 题名： | Fuel-Cycle Energy and Emission Impacts of Ethanol-Diesel Blends in Urban Buses and Farming Tractors. |
| 作者： | Lee, H.;Saricks, C.;Wang, M.; |
| 关键词： | *Fuel-cycle; *Ethanol-; *Diesel-fuels; *Blended-fuels; *Emissions-; *Buses-.;Diesel-engines; Gasoline-; Greenhouse-gases; Alternative-fuels; Contamination-; Butyl-ether; Petroleum-; Spark-ignition-engines; Tractors-. |
| 摘要： | About 2.1 billion gallons of fuel ethanol was used in the United States in 2002, mainly in the form of gasoline blends containing up to 10%ethanol (E10). Ethanol use has the potential to increase in the U.S. blended gasoline market because methyl tertiary butyl ether (MTBE), formerly the most popular oxygenate blendstock, may be phased out owing to concerns about MTBE contamination of the water supply. Ethanol would remain the only viable near-term option as an oxygenate in reformulated gasoline production and to meet a potential federal renewable fuels standard (RFS) for transportation fuels. Ethanol may also be blended with additives (co-solvents) into diesel fuels for applications in which oxygenation may improve diesel engine emission performance. Numerous studies have been conducted to evaluate the fuel-cycle energy and greenhouse gas (GHG) emission effects of ethanol-gasoline blends relative to those of gasoline for applications in spark-ignition engine vehicles. |
| 报告类型： | 科技报告 |
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