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Ethanol-diesel fuel blends -- a review
Alan C Hansen1, Qin Zhang, Peter W L Lyne
1Department of Agricultural and Biological Engineering, University of Illinois, 1304 W. Pennsylvania Ave., Urbana, IL 61801, USA.
Bioresource Technology
|October 12, 2004
Summary
Ethanol-diesel blends offer a renewable fuel option with reduced emissions for diesel engines. Key challenges for commercial use include blend stability, material compatibility, and safety, requiring further research and potential vehicle modifications.
Area of Science:
- Alternative Fuels
- Combustion Engines
- Renewable Energy
Background:
- Ethanol is a renewable, bio-based fuel with oxygen content, potentially reducing particulate emissions in diesel engines.
- Blending ethanol with diesel fuel is explored as a strategy to improve fuel properties and engine performance.
- Commercial viability hinges on addressing critical factors beyond basic fuel properties.
Purpose of the Study:
- To review the properties and specifications of ethanol-diesel blends.
- To identify critical factors for the commercial adoption of ethanol-diesel blends.
- To assess the impact of these blends on engine performance, durability, and emissions.
Main Methods:
- Literature review of existing research on ethanol-diesel blends.
- Analysis of blend properties: stability, viscosity, lubricity, safety, and materials compatibility.
- Evaluation of engine performance, durability, and emissions data.
Main Results:
- Ethanol-diesel blends show potential for reduced particulate emissions.
- Blend stability, viscosity, lubricity, safety, and material compatibility are critical for commercialization.
- Additives can improve fuel properties and stability, but fuel tank modifications may be needed for safety.
Conclusions:
- Ethanol-diesel blends present a promising renewable fuel alternative for compression-ignition engines.
- Further research is essential to establish acceptable fuel characteristics and long-term engine durability.
- Ensuring safety in handling and storage is paramount for the widespread adoption of these blends.