!SURFACE MECHANISM FOR STEAM REFORMING AND PARTIAL OXIDATION !OF METHANE AND HEXADECANE OVER RHODIUM !*********************************************************************** !**** * !**** SR/CPO CH4/C16H34 ON RH - SURFACE MECHANISM * !**** * !**** Version 1.0, March 2008 * !**** L. Maier, O. Deutschmann * !**** KIT (Karlsruhe Institute of Technology) * !**** Contact: mail@detchem.com (O. Deutschmann) * !**** * !**** References: * !**** J. Thormann, L. Maier, P. Pfeifer, U. Kunz, K. Schubert, * !**** O. Deutschmann.International J. Hydrogen Energy * !**** 34 (2009), 5108-5120 * !**** www.detchem.com/mechanisms * !**** * !**** Kinetic data: * !**** k = A * T**b * exp (-Ea/RT) A b Ea * !**** (cm,mol,s) - kJ/mol * !**** * !**** STICK: A in next reaction is initial sticking coefficient * !**** * !**** * !**** (SURFACE CHEMKIN format) * !**** * !*********************************************************************** SITE/RH_SURFACE/ SDEN/2.72E-9/ _Rh_ H2O_Rh H_Rh OH_Rh CO_Rh C_Rh CH3_Rh CH2_Rh CH_Rh CH4_Rh O_Rh CO2_Rh HCO_Rh END REACTIONS JOULES/MOLE MWOFF H2 + _Rh_ + _Rh_ => H_Rh + H_Rh 0.01 0. 0. STICK H_Rh + H_Rh => _Rh_ + _Rh_ + H2 3.E+21 0. 77800. O2 + _Rh_ + _Rh_ => O_Rh + O_Rh 0.01 0. 0. STICK O_Rh + O_Rh => _Rh_ + _Rh_ + O2 1.3E+22 0. 355200. CH4 + _Rh_ => CH4_Rh 0.008 0. 0. STICK CH4_Rh => _Rh_ + CH4 2.E+14 0. 25100. H2O + _Rh_ => H2O_Rh 0.1 0. 0. STICK H2O_Rh => _Rh_ + H2O 6.E+13 0. 45000. CO2 + _Rh_ => CO2_Rh 0.00001 0. 0. STICK CO2_Rh => _Rh_ + CO2 3.E+8 0. 21700. CO + _Rh_ => CO_Rh 0.5 0. 0. STICK CO_Rh => _Rh_ + CO 1.E+13 0. 133400. COV / CO_Rh 0. 0. -50000. / O_Rh + H_Rh => OH_Rh + _Rh_ 5.E+22 0. 83700. OH_Rh + _Rh_ => O_Rh + H_Rh 3.E+20 0. 37700. OH_Rh + H_Rh => H2O_Rh + _Rh_ 3.E+20 0. 33500. H2O_Rh + _Rh_ => OH_Rh + H_Rh 5.E+22 0. 106400. OH_Rh + OH_Rh => O_Rh + H2O_Rh 3.E+21 0. 100800. O_Rh + H2O_Rh => OH_Rh + OH_Rh 3.E+21 0. 171800. O_Rh + C_Rh => CO_Rh + _Rh_ 5.E+23 0. 97900. CO_Rh + _Rh_ => O_Rh + C_Rh 3.7E+21 0. 169000. COV / CO_Rh 0. 0. -50000. / O_Rh + CO_Rh => CO2_Rh + _Rh_ 1.E+19 0. 121600. COV / CO_Rh 0. 0. -50000. / CO2_Rh + _Rh_ => O_Rh + CO_Rh 5.E+21 0. 115300. CO_Rh + H_Rh => HCO_Rh + _Rh_ 5.E+19 0. 108900. HCO_Rh + _Rh_ => CO_Rh + H_Rh 3.7E+21 0. 0. COV / CO_Rh 0. 0. 50000. / HCO_Rh + _Rh_ => O_Rh + CH_Rh 8.E+23 0. 59500. O_Rh + CH_Rh => HCO_Rh + _Rh_ 3.7E+21 0. 167500. CH4_Rh + _Rh_ => CH3_Rh + H_Rh 5.5E+20 0. 61000. CH3_Rh + H_Rh => CH4_Rh + _Rh_ 3.7E+21 0. 51000. CH3_Rh + _Rh_ => CH2_Rh + H_Rh 3.7E+24 0. 103000. CH2_Rh + H_Rh => CH3_Rh + _Rh_ 3.7E+21 0. 44000. CH2_Rh + _Rh_ => CH_Rh + H_Rh 3.7E+24 0. 100000. CH_Rh + H_Rh => CH2_Rh + _Rh_ 3.7E+24 0. 68000. CH_Rh + _Rh_ => C_Rh + H_Rh 3.7E+21 0. 21000. C_Rh + H_Rh => CH_Rh + _Rh_ 3.7E+21 0. 172800. O_Rh + CH4_Rh => CH3_Rh + OH_Rh 1.7E+24 0. 80340. CH3_Rh + OH_Rh => O_Rh + CH4_Rh 3.7E+21 0. 24270. O_Rh + CH3_Rh => CH2_Rh + OH_Rh 3.7E+24 0. 120310. CH2_Rh + OH_Rh => O_Rh + CH3_Rh 3.7E+21 0. 15060. O_Rh + CH2_Rh => CH_Rh + OH_Rh 3.7E+24 0. 114500. CH_Rh + OH_Rh => O_Rh + CH2_Rh 3.7E+21 0. 36820. O_Rh + CH_Rh => C_Rh + OH_Rh 3.7E+21 0. 30130. C_Rh + OH_Rh => O_Rh + CH_Rh 3.7E+21 0. 136000. CO_Rh + H_Rh => C_Rh + OH_Rh 3.7E+21 0. 142760. C_Rh + OH_Rh => CO_Rh + H_Rh 3.7E+20 0. 25540. C16H34 + 16 _Rh_ => 2 CH3_Rh + 14 CH2_Rh 422807.09 0.2 71000. FORD/ C16H34 0.495 / FORD/ _Rh_ 0.9 / END