Published February 2017 | Version v1
Journal article Metadata-only

Determination of the rate coefficients of the CH4 + O2 → HO2+CH3 and HCO+O2 → HO2 + CO reactions at high temperatures

Creators

  • 1. School of Chemical Engineering, Yeungnam University, Gyeongsan (Korea, Republic of)
  • 2. Dept. of Chemistry, Soongsil University, Seoul (Korea, Republic of)
  • 3. Science Applications International Corp oration, 3000 Aerospace Park way, Brook Park, Ohio (United States)

Description

Rate coefficients of the title reactions, R1 (CH4 + O2 → HO2+CH3) and R2 (HCO+O2 → HO2 + CO) were obtained over T = 1610 ⁓ 1810 K and T = 200 ⁓ 1760 K, respectively, and at ρ = 7.1 μmol/cm3. A lean CH4/O2/Ar mixture (0.1% CH4, ϕ = 0.02) was heated behind reflected shock waves and the temporal OH absorption profiles were measured using a laser absorption spectroscopy. Reaction rate coefficients were elucidated by matching the experimental profiles via optimization of k1 and k2 values in the reaction simulation. The rate coefficient expressions derived are k1 = 1.46 × 1014 exp (−26 210 K/T) cm3/mol/s, T = 1610 ⁓ 1810 K and k2 = 1.9 × 1012 T0.16 exp (−245 K/T) cm3/mol/s, T = 200 ⁓ 1760 K

Additional details

Publishing Information

Journal Title
Bulletin of the Korean Chemical Society
Journal Volume
38
Journal Issue
2
Series
36 refs, 6 figs, 1 tab
Journal Page Range
p. 228-236
ISSN
0253-2964

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
48049695
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTION; CARBON IONS; CARBON OXIDES; SHOCK WAVES; SIMULATION; SPECTROSCOPY
Descriptors DEC
CARBON COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; IONS; OXIDES; OXYGEN COMPOUNDS; SORPTION