Kinetic measurements on elementary fossil fuel combustion reactions over wide temperatures ranges. Progress report, December 1, 1990--November 30, 1991

Technical Report · Wed Jan 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/10120088· OSTI ID:10120088

Fontijin, A

The goals of this work are to provide accurate data on the temperature dependence of the kinetics of elementary combustion reactions (i) for use by combustion modelers, and (ii) to gain a better fundamental understanding of, and hence predictive ability for, the chemistry involved. Experimental measurements are made using the pseudo-static HTP (high-temperature photochemistry) technique. This approach allows observations on single reactions in the 300 to 1800 K temperature range to be made. Typical total (bath gas) pressures are in the 100 to 1000 mbar range. Ground-state O and H atoms are produced by flash or excimer laser photolysis of suitable precursors (O{sub 2}, CO{sub 2}, SO{sub 2}, NH{sub 3}). The relative atom concentrations are monitored by resonance fluorescence pumped by a cw microwave discharge flow lamp. The molecular reactant-in-excess is introduced through a cooled inlet. Adequate time for mixing, 0.1 to 10 s, between this inlet and the photolysis/observation zone is achieved by using slow flows (typically less than 20 cm s{sup {minus}1}). Results are reported for: O-Atom Reactions with the Four Isomeric Butenes, H + HCl {yields} H{sub 2} + Cl, and the O-atom 1,3-butadiene reaction.

• Research Organization: Rensselaer Polytechnic Inst., Troy, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-84ER13224
• OSTI ID: 10120088
• Report Number(s): DOE/ER/13224-16; ON: DE92007535
• Resource Relation: Other Information: PBD: Jan 1992
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ATOMS
CHEMICAL REACTIONS
COMBUSTION KINETICS
TEMPERATURE DEPENDENCE
POLYATOMIC MOLECULES
PHOTOLYSIS
PROGRESS REPORT
OXYGEN
BUTENES
BUTADIENE
HYDROGEN
HYDROCHLORIC ACID
EXCIMER LASERS
CARBON DIOXIDE
SULFUR DIOXIDE
AMMONIA
400800
400500
COMBUSTION, PYROLYSIS, AND HIGH-TEMPERATURE CHEMISTRY
PHOTOCHEMISTRY