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Biofuels: a Challenge to Fuel Seal Elastomers?
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From DuPont Engineering Polymers
Biofuels - bioethanol, biobutanol and biodiesel - are becoming a significant reality in the transportation fuels landscape in the USA and North America, as well as Europe, South America and the Asia-Pacific regions. However, some biofuels can be aggressive to the elastomers used in automotive fuel system seals and hoses. Fluorohydrocarbon elastomers (FKM), notably DPE Viton® fluoroelastomer, have been successfully used in seals and hoses for automotive fuel systems for over 45 years. FKM has demonstrated broad compatibility with petroleum-based fuels and is a preferred elastomer for today's sophisticated common rail fuel injection systems. Biofuels present their own set of material compatibility challenges to automotive fuel storage, delivery and metering systems. Relative to other fuel components, biodiesel has unstable chemistry subject to degradation and contamination in the distribution chain13. The aggressive, contaminated fuel attacks hydrocarbon rubbers such as nitrile rubber, widely used in fuel handling hose, gaskets and seals. Products & Services
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Topics of Interest
8.4 Fuels from Biomass
The production of biofuels to replace oil and natural gas is in active development, focusing on the use of cheap organic matter (usually cellulose, agricultural, and sewage...
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8.5 Uses
Biomass currently supplies 14 percent of the world s energy needs, but has the theoretical potential to supply 100 percent. Most present day production and use of biomass for energy is...
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Biofuels are presently the only renewable source of liquid transportation fuels and offer many potential environment and economic benefits. The production of the raw biomass material and its...
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Having been called the "fastest-growing alternative fuel" in the United States by the U.S. DOE, there's no question that biodiesel will continue to play an increasingly significant role in the...
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Having been called the "fastest-growing alternative fuel" in the United States by the Department of Energy, there's no question that biodiesel will continue to play an increasingly significant role in...
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