Catalytic Kinetics: partial_oxidation_methane
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 | conversion pct typical (%) | deactivation rate hr (1/hr) | notes | pre exponential factor | pre exponential units | pressure range bar | rate expression | rate law type | reaction order forward | reaction stoichiometry | selectivity pct (%) | space velocity hr | temperature range C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| partial_oxidation_methane | ni_mgo_pom | 125 | Ni/MgO partial oxidation of methane | 95 | 0.00005 | Auto-thermal; O2/CH4 ratio controls selectivity to syngas vs combustion; surface lattice O mechanism | 360,000,000 | mol/kg_cat/s/bar^n | 1-10 | r = A*exp(-Ea/RT)*P_CH4^0.9*P_O2^0.1 | power_law | 0.9 | CH4 + 0.5O2 → CO + 2H2 | 90 | 10000-100000 | 700-900 |
| partial_oxidation_methane | rh_al2o3_pom | 90 | Rh/Al2O3 partial oxidation of methane | 98 | 0.00002 | Rh more selective than Ni; faster light-off; mechanism involves surface Rh=O species; Ea ~80-100 kJ/mol | 200,000,000 | mol/kg_cat/s | 1-20 | r = A*exp(-Ea/RT)*P_CH4 / (1 + K_O2*P_O2^0.5 + K_CH4*P_CH4) | langmuir_hinshelwood | 1 | CH4 + 0.5O2 → CO + 2H2 | 95 | 20000-200000 | 700-900 |
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