This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
E-85 Fuel Corrosivity: Effects on Port Fuel Injector Durability Performance
Technical Paper
2007-01-4072
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A study was conducted to investigate the effects of commercial E-85 fuel properties on Port Fuel Injector (PFI) durability performance. E-85 corrosivity, not lubricity, was identified as the primary property affecting injector performance.
Relatively high levels of water, chloride and organic acid contamination, detected in commercial E-85 fuels sampled in the U.S. in 2006, were the focus of the study. Analysis results and analytical techniques for determining contaminant levels in and corrosivity of commercial E-85 fuels are discussed.
Studies were conducted with E-85 fuels formulated to represent worst-case field fuels. In addition to contamination with water, chloride and organic acids, fuels with various levels of a typical ethanol corrosion inhibitor were tested in the laboratory to measure the effects on E-85 corrosivity. The effects of these E-85 contaminants on injector durability performance were also evaluated.
Corrosion test ratings from NACE TM0172-2001 (“Determining Corrosive Properties of Cargoes in Petroleum Product Pipelines”) [1] were determined for the test fuels. This corrosion test was found to be sensitive to the presence of low levels of typical corrosive E-85 contaminants. A recommendation for adding a corrosivity requirement to ASTM D 5798 (“Standard Specification for Fuel Ethanol (Ed75 - Ed85) for Automotive Spark-Ignition Engines”) [2] will be presented.
Recommended Content
Authors
Citation
Galante-Fox, J., Von Bacho, P., Notaro, C., and Zizelman, J., "E-85 Fuel Corrosivity: Effects on Port Fuel Injector Durability Performance," SAE Technical Paper 2007-01-4072, 2007, https://doi.org/10.4271/2007-01-4072.Also In
References
- “Determining Corrosive Properties of Cargoes in Petroleum Product Pipelines”
- “Standard Specification for Fuel Ethanol (Ed75 - Ed85) for Automotive Spark-Ignition Engines” 2004
- “Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel”
- “Standard Test Method for Determination of Total and Potential Inorganic Sulfate and Total Inorganic Chloride in Fuel Ethanol by Ion Chromatography Using Aqueous Sample Injection”
- “Standard test method for evaluating lubricity of diesel fuels by the High-Frequency Reciprocating Rig (HFRR)”
- “Standard Test Method for Water Using Volumetric Karl Fischer Titration”
- “Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration”
- “Standard Test Method for Determination of pHe of Ethanol, Denatured Fuel Ethanol, and Fuel Ethanol (Ed75-Ed85)” 2004
- “Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products”
- “Standard Test Methods for Electrical Conductivity and Resistivity of Water,” 2005
- “Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test,”
- “Standard Specification for Automotive Spark-Ignition Engine Fuel”
- “Standard Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection” 2005
- “Standard Test Method for Determination of Ethanol Content of Denatured Fuel Ethanol by Gas Chromatography”
- Rovai Fernando F. Tanaka Denoil K Sinatora Amilton “Wear and Corrosion Evaluation of Electric Fuel Pumps With Ethanol/Gasoline Blends” SAE International 2005-01-2196 2005
- Walker Monte S. Chance Robert L. “Corrosion of Metals and the Effectiveness of Inhibitors in Ethanol Fuels” SAE 831828 1983
- Summer 2006 E-85 U.S. Fuel Survey SGS Germany GmbH, Fuel Technology Centre Speyer Germany
- Renewable Fuels Association (RFA) “Fuel Ethanol - Industry Guidelines, Specifications and Procedures” December 2003