Study of higher hydrocarbon production during ethylacetylene pyrolysis using laser-generated vacuum-ultraviolet photoionization detection

Journal Article · Thu Apr 19 00:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100371a026· OSTI ID:6901600

Boyle, J; Pfefferle, L ^[1]

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1. Yale Univ., New Haven, CT (USA)

Higher hydrocarbon formation during the pyrolysis of ethylacetylene in a microjet reactor was studied by vacuum-ultraviolet photoionization time-of-flight mass spectrometry. At the wavelength employed, this ionization technique allows for the simultaneous detection of both stable and intermediate polyatomic species with ionization potentials below 10.49 eV, including most hydrocarbons with two or more carbon atoms. Minimal fragmentation simplifies the determination of parent species and allows identification of probable reaction pathways involving hydrocarbon radicals as well as stable species. The pyrolysis of ethylacetylene was carried out in the fast-flow microjet reactor (residence times 1-2 ms) at temperatures from 300 to 1,600 K.

• OSTI ID: 6901600
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 94:8; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETYLENE
PYROLYSIS
SOOT
DATA ANALYSIS
EXPERIMENTAL DATA
HYDROCARBONS
LASER SPECTROSCOPY
MASS SPECTROSCOPY
MEASURING INSTRUMENTS
MEASURING METHODS
ULTRAVIOLET SPECTRA
ALKYNES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
SPECTRA
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry