Catalytic Kinetics: steam_methane_reforming
Catalytic reaction kinetics data — activation energy, pre-exponential factors, rate expressions, selectivity, conversion, and deactivation rates for industrial catalytic processes
| reaction id | catalyst id | activation energy kJ mol (kJ/mol) | catalyst name | equilibrium constant expression | notes | pre exponential factor | pre exponential units | pressure range bar | rate expression | rate law type | reaction order forward | reaction stoichiometry | space velocity hr | temperature range C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| steam_methane_reforming | ni_al2o3_r2 | 67.1 | Ni/MgAl2O4 - Xu Froment R2 (WGS) | K2 = exp(4400/T - 4.036) | R2 of Xu-Froment 3-reaction SMR model; DEN = 1 + K_CO*P_CO + K_H2*P_H2 + K_CH4*P_CH4 + K_H2O*P_H2O/P_H2 | 1,955,000 | mol/kg_cat/s/bar^-1 | 3-30 | r2 = k2*(P_CO*P_H2O/P_H2 - P_CO2/K2) / DEN^2 | langmuir_hinshelwood | 1 | CO + H2O ⇌ CO2 + H2 | 3000-15000 | 500-900 |
| steam_methane_reforming | ni_al2o3_r3 | 243.9 | Ni/MgAl2O4 - Xu Froment R3 (overall) | K3 = K1*K2 | R3 = R1 + R2; Ea=243.9 kJ/mol; k0=1.020e15; combined overall SMR reaction | 1,020,000,000,000,000 | mol/kg_cat/s/bar^0.5 | 3-30 | r3 = k3*(P_CH4*P_H2O^2/P_H2^3.5 - P_CO2*P_H2^0.5/K3) / DEN^2 | langmuir_hinshelwood | 1 | CH4 + 2H2O ⇌ CO2 + 4H2 | 3000-15000 | 500-900 |
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