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Detailed kinetic modeling study of n-pentanol oxidation

Journal Article · · Energy and Fuels
DOI:https://doi.org/10.1021/ef3012596· OSTI ID:1281693
 [1];  [2];  [1];  [2];  [3];  [3]
  1. National Univ. of Ireland Galway, Galway (Ireland)
  2. King Abdullah Univ. of Science and Technology, Thuwal (Kingdom of Saudi Arabia)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
To help overcome the world’s dependence upon fossil fuels, suitable biofuels are promising alternatives that can be used in the transportation sector. Recent research on internal combustion engines shows that short alcoholic fuels (e.g., ethanol or n-butanol) have reduced pollutant emissions and increased knock resistance compared to fossil fuels. Although higher molecular weight alcohols (e.g., n-pentanol and n-hexanol) exhibit higher reactivity that lowers their knock resistance, they are suitable for diesel engines or advanced engine concepts, such as homogeneous charge compression ignition (HCCI), where higher reactivity at lower temperatures is necessary for engine operation. The present study presents a detailed kinetic model for n-pentanol based on modeling rules previously presented for n-butanol. This approach was initially validated using quantum chemistry calculations to verify the most stable n-pentanol conformation and to obtain C–H and C–C bond dissociation energies. In addition, the proposed model has been validated against ignition delay time data, speciation data from a jet-stirred reactor, and laminar flame velocity measurements. Overall, the model shows good agreement with the experiments and permits a detailed discussion of the differences between alcohols and alkanes.
Research Organization:
Lawrence Livermore National Lab., Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1281693
Report Number(s):
LLNL-JRNL--590392
Journal Information:
Energy and Fuels, Journal Name: Energy and Fuels Journal Issue: 11 Vol. 26; ISSN 0887-0624
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Multi-fuel surrogate chemical kinetic mechanisms for real world applications journal January 2018
Reaction kinetics of hydrogen atom abstraction from isopentanol by the H atom and HO 2 ˙ radical journal January 2018
Nanostructure and Oxidation Reactivity of Nascent Soot Particles in Ethylene/Pentanol Flames journal January 2017

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