Ethanol–diesel fuel blends –– a review

• Published in: Bioresource Technology 2005-02, Vol.96 (3), p.277-285
• Main Authors: Hansen, Alan C., Zhang, Qin, Lyne, Peter W.L.
• Format: Article
• Language: English
• Subjects: Air Pollution - prevention & control; Alcohol; Biofuel; Biofuel production; biofuels; Biological and medical sciences; Biotechnology; Blend; Conservation of Energy Resources; Consumer Product Safety; Diesel; Diesel engines; diesel fuel; Energy; energy content; energy use and consumption; Ethanol; Ethanol - chemistry; Fuels; Fundamental and applied biological sciences. Psychology; Gasoline - analysis; Industrial applications and implications. Economical aspects; literature reviews; Lubrication; Materials Testing; mixtures; Q1; Reviews; Vehicle Emissions; Viscosity
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2004.04.007

Ethanol is an attractive alternative fuel because it is a renewable bio-based resource and it is oxygenated, thereby providing the potential to reduce particulate emissions in compression–ignition engines. In this review the properties and specifications of ethanol blended with diesel fuel are discussed. Special emphasis is placed on the factors critical to the potential commercial use of these blends. These factors include blend properties such as stability, viscosity and lubricity, safety and materials compatibility. The effect of the fuel on engine performance, durability and emissions is also considered. The formulation of additives to correct certain key properties and maintain blend stability is suggested as a critical factor in ensuring fuel compatibility with engines. However, maintaining vehicle safety with these blends may entail fuel tank modifications. Further work is required in specifying acceptable fuel characteristics, confirming the long-term effects on engine durability, and ensuring safety in handling and storing ethanol–diesel blends.