A shock tube investigation of the rate of soot formation for benzene, toluene, and toluene/n-heptane mixtures

Journal Article · Tue Mar 01 00:00:00 EST 1988 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(88)90060-0· OSTI ID:6949766

Simmons, B; Williams, A

The rate of soot formation during the pyrolysis and oxidation of rich mixtures of toluene and benzene, and the pyrolysis of toluene/n-heptane mixtures has been determined using a reflected shock technique over the temperature range of 1500-1950K and for pressures between 2.6 and 3.6 x 10/sup 5/ Pa. A laser beam attenuation technique was used to determine soot concentrations using helium-neon lasers at 632.8 and 1152.0 nm. The test gas mixtures were diluted with at least 98 mol% argon and for the pyrolysis experiments the hydrocarbon concentration did not exceed 0.35 mol m/sup -3/. The oxidation experiments employed fuel rich mixtures with equivalence ratios between 6 and 11. Rates of soot formation and soot yields exhibited an Arrhenius dependence and could be expressed by a correlation equation in a form which is also suitable for the prediction of soot limits.

• Research Organization: Dept. of Fuel and Energy, The Univ. of Leeds, Leeds, LS2 9JT (GB)
• OSTI ID: 6949766
• Journal Information: Combust. Flame; (United States), Vol. 71:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BENZENE
COMBUSTION KINETICS
HEPTANE
TOLUENE
ABSORPTION
ARGON
ARRHENIUS EQUATION
COMBUSTION PRODUCTS
DILUTION
MEASURING METHODS
MIXTURES
OXIDATION
PYROLYSIS
QUANTITATIVE CHEMICAL ANALYSIS
SHOCK TUBES
SOOT
VERY HIGH TEMPERATURE
ALKANES
ALKYLATED AROMATICS
AROMATICS
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ELEMENTS
EQUATIONS
FLUIDS
GASES
HYDROCARBONS
KINETICS
NONMETALS
ORGANIC COMPOUNDS
RARE GASES
REACTION KINETICS
THERMOCHEMICAL PROCESSES
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry