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Author(s):   Mueller, M.A.; Yetter, R.A.; Dryer, F.L.
Title:   Kinetic Modeling of the CO/H2O/O2/NO/SO2 System: Implications for High-Pressure Fall-off in the SO2+O(+M) + SO3(+M)
Journal:   Int J. Chem. Kinet.
Volume:   32
Page(s):   317 - 339
Year:   2000
Reference type:   Journal article
Squib:   2000MUE/YET317-339

Reaction:   SO2 + SO3
Reaction order:   1
Temperature:   950 - 1040 K
Pressure:  0.51 - 10.13 bar
Rate expression:   9.2x1010 [s-1] e-9958 [J/mole]/RT
Bath gas:   N2
Category:  Experiment
Data type:   Derived from fitting to a complex mechanism
Pressure dependence:   Rate constant is pressure dependent
Experimental procedure:   Flow tube - Data taken vs distance
Excitation technique:   Thermal
Time resolution:   By end product analysis
Analytical technique:   Fourier transform (FTIR)
Comments:   Turbulent flow reactorlow pressure limit used to go with experimentally determinedhigh pressure limit (Fc=1)SO2+O+M=SO3+M 4.0x10e28T-4exp(-5250/RT)cm6/mol2s2collision efficiency for N2 =1 Ar =.75 CO2=3.8 CO=1.9 H2=2.5 H20=12

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Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [s-1]
950 2.61E10
975 2.69E10
1000 2.78E10
1025 2.86E10
1040 2.91E10