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Compatibility of Elastomers and Metals in Biodiesel Fuel Blends
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Abstract
Alternative fuels are being evaluated in automotive applications in both commercial and government fleets in an effort to reduce emissions and United States dependence on diesel fuel. Vehicles and equipment have been operated using 100 percent biodiesel and various blends of biodiesel and diesel fuel in a variety of applications, including farming equipment and transit buses.
This government study investigates the compatibility of four base fuels and six blends with elastomer and metallic components commonly found in fuel systems. The physical properties of the elastomers were measured according to American Society of Testing and Materials (ASTM) D 471, “Standard Test Method for Rubber Property-Effect of Liquids,” and ASTM D 412, “Standard Test Methods for Rubber Properties in Tension.” These evaluations were performed at 51.7°C for 0, 22, 70, and 694 hours. Tensile strength, hardness, swell, and elongation were determined for all specimens.
Six metal specimens were stored for 6 months at 51.7°C. Visual inspection of the specimens was performed, and total acid number (TAN) was determined using ASTM D 664, “Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration.”
The results showed reduced swelling characteristics in many materials when introduced to biodiesel and biodiesel fuel blends. Biodiesel and biodiesel fuel blends exhibited severe corrosion with copper-containing metals and high TAN'S with all metals evaluated.
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Citation
Bessee, G. and Fey, J., "Compatibility of Elastomers and Metals in Biodiesel Fuel Blends," SAE Technical Paper 971690, 1997, https://doi.org/10.4271/971690.Also In
References
- Cusano, C.M. Stafford, R.J. Lucas, J.M. “Changes in Elastomer Swell with Diesel Fuel Composition,” SAE Paper No. 942017
- Osenga, M. “What Exactly is Biodiesel?” Diesel Progress Engines and Drives October 1993 46 49
- Reed, T.B. “An Overview of the Current Status of Biodiesel,” Department of Chemical Engineering, Colorado School of Mines Golden, CO
- Holmberg, W.C. Gavett, E.E. Merrill, P.N. Peeples, J.E. “National Soydiesel Board Standards for Biodiesel,” June 1993
- Schumacher, L.G. Hires, W.G. Borgelt, S.C. “Fueling a Diesel Engine with Methyl-Ester Soybean Oil,” Agricultural Engineering, University of Missouri-Columbia Columbia, MO
- “Final Report of GE Demonstration Program with Rapeseed Methyl-Ester as Diesel Engine Fuel,” Project No. EB 160 M 5337, AC 112/WG 4/Ground Fuels Working Party. Non-Fossil Fuels 17 December 1993
- Goldsberry, D.R. “Fuel Hose Permeation of Fluoropolymers,” SAE Paper No. 930992
- Hawkins, C.S. Fuls, J. Hugo, F.J.C. “Sunflower Oil Esters: An Alternative Fuel for Direct Injection Diesel Engines,” SAE Paper No. 831356
- Kusher, K.S. “Alternate Materials for Alternative Fuels,” SAE Paper No. 920165
- Carpenter, M.S. Chillous, S.E. Will, R.R. “High Temperature Resistance of Fluoropolymers in Automotive Fuels,” SAE Paper No. 910103
- Stahl, W.M. Stevens, T.D. “Fuel-Alcohol Permeation Rates of Fluoroelastomers, Fluoroplastics, and Other Fuel Resistant Materials,” SAE Paper No. 920163
- Abu-Isa, I.A. “Effects of Mixtures of Gasoline with Methanol and With Ethanol on Automotive Elastomers,” SAE Paper No. 800786
- Virant, M.S. Fiedler, L.D. Knapp, T.L Norris, A.W. “The Effects of Alternative Fuels on Fluorosilicone Elastomers,” SAE Paper No. 919102
- Goldsberry, D.R. Chillous, S.D. Will, R.R. “Fluoropolymer Resins: Permeation of Automotive Fuels,” SAE Paper No. 910104
- Lucas, W. “Summary Test Report for the Biodiesel Fuel Evaluation for the U.S. Army Tactical Wheeled Vehicles Volume I of Series,” Material Test Directorate U.S. Army Yuma Proving Ground Yuma, AZ May 1995
- Frame. E.A. Bessee, G.B. Marbach, H.W. Jr., “Biodiesel Fuel Technology for Military Applications,” Interim Report TFLRF No. 317 U.S Army TARDEC Fuels and Lubricants Research Facility, Southwest Research Institute San Antonio, TX