Identification and temporal behavior of radical intermediates formed during the combustion and pyrolysis of gaseous fuels: Kinetic pathways to soot formation

Technical Report · Thu Feb 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/7257495· OSTI ID:7257495

Kern, R. D.; Xie, K.; Chen, H.

Our work has continued as outlined in our research proposal which covered the period July 1, 1988--June 30, 1991. There have been no major departures from the proposed plan. Included in this report is a budget for the period July 1, 1990--June 1991. The funds requested reflect a reduction from the original amount, $76,119 instead of $77,200. The main focus of our work continues to be the formulation of reaction mechanisms for pyrolytic reaction systems that pertain to the soot formation process. Several important developments have caused us to re-examine our previous results on the thermal decomposition of acetylene. A shock tube coupled to a time-of-flight (TOF) mass spectrometer was used to obtain the dynamic reaction profiles for C{sub 2}H{sub 2}, C{sub 4}H{sub 2} and C{sub 6}H{sub 2} during the course of the available observation period ({approximately} 1 {mu}s). The results were modeled over a wide range of temperatures and initial concentrations of C{sub 2}H{sub 2}.

• Research Organization: New Orleans Univ., LA (USA). Dept. of Chemistry
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG05-85ER13400
• OSTI ID: 7257495
• Report Number(s): DOE/ER/13400-9; ON: DE90008412
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ACETYLENE
ACTIVATION ENERGY
ALKYNES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
DECOMPOSITION
DOCUMENT TYPES
ENERGY
ENTHALPY
FUELS
GAS FUELS
HYDROCARBONS
KINETICS
MASS SPECTROSCOPY
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
OXIDATION
PHYSICAL PROPERTIES
PROGRESS REPORT
PYROLYSIS
REACTION HEAT
REACTION INTERMEDIATES
REACTION KINETICS
SOOT
SPECTROMETERS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TIME-OF-FLIGHT SPECTROMETERS
YIELDS