Direct determination of atom and radical concentrations in thermal reactions of hydrocarbons and other gases. Progress report, January 1-December 31, 1979
This is the fourth annual progress report on this project. During the period covered by the first three reports (June 1976 through December 1978) a shock tube and an optical system to measure H and D atom concentrations were built and fully characterized. The performance of our microwave discharge lamps was defined by numerous high-resolution spectroscopic profiles, while empirical calibrations were made using mixtures of D/sub 2/-N/sub 2/O-Ar and hexamethylethane-Ar. H and D atom concentrations were measured in H/sub 2/-O/sub 2/-Ar, D/sub 2/-O/sub 2/-Ar, CD/sub 4/-Ar, CD/sub 4/-O/sub 2/-Ar and C/sub 3/H/sub 8/-Ar mixtures, and absorption measurements made for O/sub 2/-Ar mixtures. Several calculations of elementary rate constants were made, based on the above data. During 1979 H and D atom measurements were extended to C/sub 3/H/sub 8/-O/sub 2/-Ar, C/sub 3/D/sub 8/-Ar, C/sub 3/D/sub 8/-O/sub 2/-Ar, C/sub 2/H/sub 6/-Ar, C/sub 2/H/sub 6/-O/sub 2/-Ar, C/sub 2/D/sub 6/-Ar and C/sub 2/D/sub 6/-O/sub 2/-Ar mixtures. Most of these data have been interpreted in terms of elementary reactions, and several calculations of elementary reaction rate constants have been made. Our apparatus has been modified so concentrations of O, OH and other species besides H and D can be determined by absorption spectroscopy and measurements with our new system are being made. Two papers based on this work were published in 1979, and three presentations were made at scientific meetings.
- Research Organization:
- Wright State Univ., Dayton, OH (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EY-76-S-02-2944
- OSTI ID:
- 5689172
- Report Number(s):
- COO--2944-4
- Country of Publication:
- United States
- Language:
- English
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Direct determination of atom and radical concentrations in thermal reactions of hydrocarbons and other gases. Progress report, January 1, 1978--December 31, 1978
Direct determination of atom and radical concentrations in thermal reactions of hydrocarbons and other gases
Related Subjects
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKANES
ARGON
ATOMS
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
DECOMPOSITION
DEUTERIUM COMPOUNDS
ELEMENTS
ETHANE
FLUIDS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN
PROPANE
PYROLYSIS
RADICALS
RARE GASES
RESEARCH PROGRAMS
SHOCK TUBES
THERMOCHEMICAL PROCESSES