Main Title |
Impact of biodiesel on the oxidation kinetics and morphology of diesel particulate / |
Other Authors |
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Publisher |
Oak Ridge National Laboratory, Fuels Engines and Emissions Research Center, |
Year Published |
2011 |
OCLC Number |
792742509 |
Internet Access |
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Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
ELBM |
TP359.B46S77 2011 |
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AWBERC Library/Cincinnati,OH |
05/07/2012 |
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Collation |
[6] p. : charts ; ill. |
Notes |
Caption title.. Reprint of article presented at the 7th US National Meeting of the Combustion Institute, hosted by the Georgia Institute of Technology, Atlanta, GA, March 20-23, 2011. Includes bibliographical references. |
Contents Notes |
We compare the oxidation characteristics of four different diesel particulates generated with a modern light-duty engine. The four particulates represent engine fueling with conventional ultra-low sulfur diesel (ULSD), biodiesel, and two intermediate blends of these fuels. The comparisons discussed here are based on complementary measurements implemented in a laboratory micro-reactor, including temperature programmed desorption and oxidation, pulsed isothermal oxidation, and BET surface area. From these measurements we have derived models that are consistent with the observed oxidation reactivity differences. When accessible surface area effects are properly accounted for, the oxidation kinetics of the fixed carbon components were found to consistently exhibit an Arrhenius activation energy of 113 6 kJ/mol. Release of volatile carbon from the as-collected particulate appears to follow a temperature-dependent rate law. |