| Nature of reaction | Reaction | Reaction number |
| Pyrolysis |
| (2-1) |
| Tar cracking |
| (2-2) |
| Heterogeneous reactions |
| (2-3) |
|
| (2-4) | |
|
| (2-5) | |
|
| (2-6) | |
|
| (2-7) | |
| Homogeneous reactions |
| (2-8) |
|
| (2-9) | |
|
| (2-10) | |
|
| (2-11) | |
|
| (2-12) | |
|
| (2-13) |