National 2010-2011 Survey of E85: CRC Project E-85-2

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Description

This study examined the quality of E85 fuel around the country in each of the three volatility classes identified in ASTM D5798-10. Samples were collected from pumps in 21 states between July 2010 and May 2011, with almost 40 samples collected in each class. Parameters tested to assess fuel quality were volatility, ethanol content, water content, acidity, pHe, inorganic chloride and sulfate, and total sulfate. Class 1 samples more often met the volatility specification than samples from other classes, with 67% of the samples collected in this study meeting the specification. Samples in Classes 2 and 3 met the applicable ... continued below

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38 p.

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Alleman, T. L. December 1, 2011.

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Description

This study examined the quality of E85 fuel around the country in each of the three volatility classes identified in ASTM D5798-10. Samples were collected from pumps in 21 states between July 2010 and May 2011, with almost 40 samples collected in each class. Parameters tested to assess fuel quality were volatility, ethanol content, water content, acidity, pHe, inorganic chloride and sulfate, and total sulfate. Class 1 samples more often met the volatility specification than samples from other classes, with 67% of the samples collected in this study meeting the specification. Samples in Classes 2 and 3 met the applicable volatility specifications on 43% and 30% of the time, respectively. Compliance with the ethanol specification was almost 90% in all three volatility classes, a significant improvement over previous surveys. Several samples that would have been off-specification for ethanol content under previous versions of the specification now met the specification with the reduction in ethanol content for all classes. A few samples were off-specification for pHe, acidity, water, and inorganic chloride. Few samples were off-specification for more than one property, and samples that were off-specification in one volatility class were not necessarily off-specification in the other two classes.

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38 p.

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  • Report No.: NREL/TP-5400-52905
  • Grant Number: AC36-08GO28308
  • DOI: 10.2172/1032668 | External Link
  • Office of Scientific & Technical Information Report Number: 1032668
  • Archival Resource Key: ark:/67531/metadc841668

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  • December 1, 2011

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • April 5, 2017, 6:59 p.m.

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Alleman, T. L. National 2010-2011 Survey of E85: CRC Project E-85-2, report, December 1, 2011; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc841668/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.