Table 1.

Deutschmann combustion model for methane catalysed with Pt [8].

Elemental reaction Sia Ai Eacti (J/mol)
1a H2 + 2Pt(s) → 2H(s) 0.046
1d 2H(s) → H2 + 2Pt(s) 3.7 × 1017 R(8110–722θH)
2a O2 + 2Pt(s) → 2O(s) 0.07 × (300/T)
2d 2O(s) → O2 + 2Pt(s) 3.7 × 1017 R(25 631–7220θO)
3a H2O + Pt(s) → H2O(s) 0.75
3d H2O(s) → H2O + Pt(s) 1013 40 300
IV OH + Pt(s) → OH(s) 1.00
4 H(s) + O(s) → OH(s) + Pt(s) 3.7 × 1017 11 500
5 H(s) + OH(s) → H2O + Pt(s) 3.7 × 1017 17 400
6 OH(s) + OH(s) → H2O + O(s) 3.7 × 1017 48 200
7a CO + Pt(s) → CO(s) 0.84
7d CO(s) → CO + Pt(s) 1013 125 500
8d CO2(s) → CO2 + Pt(s) 1013 20 500
9 CO(s) + O(s) → CO2(s) + Pt(s) 3.7 × 1017 105 000
10 CH4 + 2Pt(s) → CH3(s) + H(s) 4.63 × 1016
11 CH3(s) + Pt(s) → CH2(s) + H(s) 3.7 × 1017 20 000
12 CH2(s) + Pt(s) → CH(s) + H(s) 3.7 × 1017 20 000
13 CH(s) + Pt(s) → C(s) + H(s) 3.7 × 1017 20 000
14+ C(s) + O(s) → CO(s) + Pt(s) 3.7 × 1017 62 800
14– CO(s) + Pt(s) → C(s) + O(s) 1014 184 000

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