Table 3 Volatile combustion reactions
From: Modelling and simulation of wood chip combustion in a hot air generator system
Reaction | Chemical reaction | Reaction rate |
|---|---|---|
Hydrogen combustion | \({\text{H}}_{2} + {\text{O}}_{2} \to 2{\text{H}}_{2} {\text{O}}\) | \(R_{{{\text{H}}_{ 2} }} = 51.8t_{g}^{1.5} { \exp }\left( {\frac{ - 3420}{{t_{g} }}} \right)C_{{{\text{H}}_{ 2} }}^{1.5} C_{{{\text{O}}_{2} }}\) |
Methane combustion | \({\text{CH}}_{4} + \frac{3}{2}{\text{O}}_{2} \to {\text{CO}} + 2{\text{H}}_{2} {\text{O}}\) | \({\text{R}}_{{{\text{CH}}_{ 4} }} = 1.6 \times 10^{10} \exp \left( {\frac{ - 24157}{{t_{g} }}} \right)C_{{{\text{CH}}_{4} }}^{0.7} C_{{{\text{O}}_{2} }}^{0.8}\) |
Carbon monoxide combustion | \({\text{CH}}_{4} + \frac{3}{2}{\text{O}}_{2} \to {\text{CO}} + 2{\text{H}}_{2} {\text{O}}\) | \(R_{\text{CO}} = 3.25 \times 10^{7} { \exp }\left( {\frac{ - 15098}{{t_{g} }}} \right)C_{\text{CO}} C_{{{\text{H}}_{2} {\text{O}}}}^{0.5} C_{{{\text{O}}_{2} }}^{0.5}\) |
Tar combustion | \({\text{C}}_{6} {\text{H}}_{6.202} {\text{O}}_{0.2} + 4.4505{\text{O}}_{2} \to 6{\text{CO}} + 3.101{\text{H}}_{2} {\text{O}}\) | \(R_{{{\text{C}}_{6} {\text{H}}_{6.202} {\text{O}}_{0.2} }} = 1.791 \times 10^{8} t_{g}^{0.5} { \exp }\left( {\frac{ - 20131}{{t_{g} }}} \right)C_{{{\text{C}}_{6} {\text{H}}_{6.202} {\text{O}}_{0.2} }} C_{{{\text{O}}_{2} }}\) |