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Title: A hierarchical single-pulse shock tube pyrolysis study of C2–C6 1-alkenes

Journal Article · · Combustion and Flame
ORCiD logo [1];  [2];  [1];  [1];  [1];  [3];  [3];  [3];  [1]
  1. National Univ. of Ireland, Galway (Ireland)
  2. National Univ. of Ireland, Galway (Ireland); North Univ. of China, Taiyuan (China)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

A single-pulse shock tube study of the pyrolysis of 2% C2–C6 1-alkenes is presented at 2 bar in the temperature range 900–1800 K in the current study. Reactant, intermediate and product species are obtained and quantified using gas chromatography-mass spectrometry (GC–MS) analysis. MS is used for species identification and a flame ionization detector is used for quantification. The experiments show the effect of carbon chain length on the production of smaller C1–C3 fragments. A new detailed kinetic mechanism, NUIGMech1.0, is used to simulate the data and the predictions for the major species are satisfactory. The improvement in predictions of the current mechanism, which includes C6 and C7 species, is substantial compared to AramcoMech3.0. Kinetic analyses are conducted with the current mechanism to identify the formation and consumption pathways of the quantified species. The experimental data are expected to contribute to a database for the validation of mechanisms at pyrolytic conditions. Additionally, the mechanism aims to provide a fundamental understanding of the pyrolytic chemistry of olefins.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); Science Foundation Ireland; Key R&D Programs in Shanxi Province
Grant/Contract Number:
AC52-07NA27344; 15/IA/3177; 16/SP/3829; 201803D421101
OSTI ID:
1635288
Alternate ID(s):
OSTI ID: 1671179
Report Number(s):
LLNL-JRNL-795880; 997136
Journal Information:
Combustion and Flame, Vol. 219, Issue na; ISSN 0010-2180
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (20)