Table 2. Activation Energy, Pre-Exponential Factor, and Correlation Coefficient According to the Conversion Ratio in the Reaction during Stage I (a, b) and II (c).
| conversion ratio (α) | activation energy (kJ/mol) | pre-exponential factor (1/s) | R2 |
|---|---|---|---|
| (a) RK (stage I) | |||
| N2 (pyrolysis) | |||
| 0.1 | 180.73 | 9.54E+14 | 0.9971 |
| 0.2 | 182.05 | 6.44E+15 | 0.9987 |
| 0.3 | 186.63 | 1.25E+15 | 0.9965 |
| 0.4 | 188.11 | 7.09E+14 | 0.9981 |
| 0.5 | 183.71 | 1.35E+14 | 0.9990 |
| 0.6 | 180.20 | 3.59E+13 | 0.9996 |
| 0.7 | 181.59 | 2.76E+13 | 1.0000 |
| 0.8 | |||
| 0.9 | |||
| average | 183.29 | 1.36E+15 | 0.9984 |
| CO2 (gasification) | |||
| 0.1 | 206.72 | 2.038E+18 | 0.9891 |
| 0.2 | 215.26 | 2.332E+18 | 0.9903 |
| 0.3 | 232.05 | 2.827E+19 | 0.9900 |
| 0.4 | 243.50 | 1.124E+20 | 0.9915 |
| 0.5 | 235.08 | 7.365E+18 | 0.9940 |
| 0.6 | 218.63 | 1.122E+17 | 0.9953 |
| 0.7 | 205.72 | 4.064E+15 | 0.9961 |
| 0.8 | 192.57 | 1.123E+14 | 0.9827 |
| 0.9 | 122.65 | 6.40E+06 | 0.9412 |
| average | 222.42 | 2.18E+19 | 0.9923 |
| (b) TK (stage I) | |||
| N2 (pyrolysis) | |||
| 0.1 | 175.49 | 3.14E+13 | 1.0000 |
| 0.2 | 172.59 | 5.26E+13 | 1.0000 |
| 0.3 | 176.67 | 2.17E+13 | 1.0000 |
| 0.4 | 178.12 | 1.85E+13 | 0.9999 |
| 0.5 | 184.13 | 4.09E+13 | 0.9998 |
| 0.6 | 216.38 | 1.37E+16 | 0.9981 |
| 0.7 | 320.37 | 1.04E+24 | 0.9976 |
| 0.8 | 385.15 | 2.24E+27 | 0.9985 |
| 0.9 | 457.93 | 1.19E+30 | 0.9948 |
| average | 251.87 | 1.32E+29 | 0.9987 |
| CO2 (gasification) | |||
| 0.1 | 242.74 | 4.058E+20 | 0.8916 |
| 0.2 | 235.62 | 1.461E+19 | 0.9421 |
| 0.3 | 228.24 | 1.216E+18 | 0.9778 |
| 0.4 | 219.78 | 1.082E+17 | 0.9927 |
| 0.5 | 213.80 | 1.742E+16 | 0.9965 |
| 0.6 | 223.37 | 5.263E+16 | 0.9916 |
| 0.7 | 234.20 | 6.463E+16 | 0.9795 |
| 0.8 | 195.55 | 3.159E+12 | 0.9993 |
| 0.9 | 171.30 | 2.623E+09 | 0.9862 |
| average | 218.29 | 4.69E+19 | 0.9730 |
| (c) RK and TK (stage II) – CO2 (gasification) | |||
| RK | |||
| 0.1 | 314.70 | 1.57E+14 | 0.9823 |
| 0.2 | 226.02 | 7.93E+08 | 0.9990 |
| 0.3 | 204.75 | 3.42E+07 | 0.9999 |
| 0.4 | 194.54 | 7.13E+06 | 1.0000 |
| 0.5 | 184.82 | 1.79E+06 | 0.9994 |
| 0.6 | 175.27 | 4.93E+05 | 0.9982 |
| 0.7 | 166.52 | 1.56E+05 | 0.9971 |
| 0.8 | 159.29 | 5.95E+04 | 0.9965 |
| 0.9 | 155.58 | 3.31E+04 | 0.9960 |
| average | 197.94 | 1.75E+13 | 0.9965 |
| TK | |||
| 0.1 | 300.12 | 1.24E+13 | 0.9741 |
| 0.2 | 223.31 | 3.07E+08 | 0.9926 |
| 0.3 | 201.99 | 1.38E+07 | 0.9953 |
| 0.4 | 189.87 | 2.37E+06 | 0.9966 |
| 0.5 | 181.77 | 7.39E+05 | 0.9973 |
| 0.6 | 175.38 | 3.02E+05 | 0.9981 |
| 0.7 | 170.55 | 1.53E+05 | 0.9988 |
| 0.8 | 165.45 | 7.59E+04 | 0.9993 |
| 0.9 | 170.18 | 1.14E+05 | 0.9975 |
| average | 197.62 | 1.38E+12 | 0.9944 |