An experimental study of indene pyrolysis with synchrotron vacuum ultraviolet photoionization mass spectrometry
KAUST DepartmentChemical Kinetics & Laser Sensors Laboratory
Clean Combustion Research Center
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/631121
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AbstractPyrolytic kinetics of indene was studied in a flow reactor at 30 and 760 Torr. Indene and its decomposition products, as well as polycyclic aromatic hydrocarbons (PAHs), were measured with synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). Five literature models were selected to reproduce the experimental data and analyze the reaction kinetics of indene. The experimental and predicted results illustrate that an indenyl radical is the dominant decomposition intermediate and also the main contributor to the further growth of aromatic rings in the pyrolysis of indene. The indene consumption process needs further precise characterization, especially the subsequent dissociation reactions of indanyl and indenyl radicals. A self-recombination reaction of the indenyl radical and the combination reactions between indenyl and other radicals are found to be necessary for the efficient formation of large PAHs. The absence of these pathways leads to the underprediction of experimental measurements. In contrast, literature models adopting indenyl global reactions for PAH formation generally overestimate the system reactivity. Proper radical combination pathways proposed in a future model should consider not only the PAH formation efficiency but also its impact on system reactivity.
CitationJin H, Yang J, Xing L, Hao J, Zhang Y, et al. (2019) An experimental study of indene pyrolysis with synchrotron vacuum ultraviolet photoionization mass spectrometry. Physical Chemistry Chemical Physics. Available: http://dx.doi.org/10.1039/c8cp07285j.
SponsorsResearch reported in this publication was funded by the Office of Sponsored Research at the King Abdullah University of Science and Technology (KAUST) and by the National Natural Science Foundation of China (91541201 and 51622605).
PublisherRoyal Society of Chemistry (RSC)