Table 2. Charateristic parameters obtained from calculated DTG curves using the IPR model, of RH, CO and SA at different heating rates.
| Sample | No. | 5%·min-1 | 10%·min-1 | 20%·min-1 | |||
|---|---|---|---|---|---|---|---|
| Center | Percentage | Center | Percentage (%) | Center | Percentage (%) | ||
| (°C) | (%) | (°C) | (°C) | ||||
| RH | reaction 1 | 31.95 | 0.05 | 80.82 | 1.02 | 43.56 | 0.49 |
| reaction 2 | 69.77 | 1.62 | 96.33 | 1.77 | 77.01 | 0.86 | |
| reaction 3 | 84.66 | 1.16 | 117.58 | 1.35 | 97.68 | 2.03 | |
| reaction 4 | 99.77 | 0.12 | 168.94 | 5.06 | 129.53 | 2.85 | |
| reaction 5 | 107.62 | 1.21 | 206.89 | 5.57 | 169.54 | 2.33 | |
| reaction 6 | 138.46 | 1.29 | 225.09 | 15.21 | 198.77 | 6.70 | |
| reaction 7 | 148.85 | 0.52 | 273.92 | 5.27 | 219.21 | 7.90 | |
| reaction 8 | 159.21 | 1.87 | 299.00 | 16.37 | 236.33 | 2.95 | |
| reaction 9 | 171.64 | 2.06 | 328.13 | 1.80 | 254.63 | 4.45 | |
| reaction 10 | 183.60 | 1.18 | 341.84 | 5.45 | 283.10 | 7.94 | |
| reaction 11 | 196.81 | 7.98 | 373.31 | 6.66 | 305.99 | 9.43 | |
| reaction 12 | 214.70 | 3.52 | 411.12 | 10.47 | 329.09 | 7.08 | |
| reaction 13 | 240.80 | 6.35 | 435.64 | 2.96 | 357.35 | 4.81 | |
| reaction 14 | 269.02 | 7.28 | 471.64 | 5.35 | 382.25 | 3.27 | |
| reaction 15 | 287.81 | 9.32 | 503.98 | 12.45 | 401.54 | 2.82 | |
| reaction 16 | 307.03 | 6.96 | 526.29 | 3.24 | 416.02 | 2.13 | |
| reaction 17 | 325.85 | 4.48 | - | - | 426.48 | 1.58 | |
| reaction 18 | 339.78 | 2.32 | - | - | 435.97 | 1.64 | |
| reaction 19 | 349.57 | 1.85 | - | - | 448.13 | 2.59 | |
| reaction 20 | 359.09 | 2.17 | - | - | 466.75 | 2.80 | |
| reaction 21 | 370.04 | 3.06 | - | - | 486.25 | 2.67 | |
| reaction 22 | 381.71 | 2.83 | - | - | 499.86 | 2.39 | |
| reaction 23 | 392.36 | 2.68 | - | - | 511.67 | 2.78 | |
| reaction 24 | 404.12 | 4.06 | - | - | 522.63 | 2.36 | |
| reaction 25 | 421.62 | 5.54 | - | - | 534.98 | 3.39 | |
| reaction 26 | 462.22 | 9.78 | - | - | 550.43 | 3.41 | |
| reaction 27 | 483.57 | 7.39 | - | - | 563.57 | 2.02 | |
| reaction 28 | 492.79 | 0.39 | - | - | 573.43 | 1.83 | |
| reaction 29 | 498.22 | 0.88 | - | - | 584.87 | 2.50 | |
| reaction 30 | 516.37 | 0.09 | - | - | - | - | |
| CO | reaction 1 | 74.57 | 1.59 | 81.93 | 2.50 | 33.85 | 0.10 |
| reaction 2 | 87.45 | 0.92 | 101.49 | 2.50 | 94.62 | 3.64 | |
| reaction 3 | 107.56 | 1.18 | 153.91 | 6.31 | 113.26 | 0.67 | |
| reaction 4 | 121.35 | 0.28 | 212.86 | 3.80 | 131.65 | 2.28 | |
| reaction 5 | 128.88 | 0.12 | 264.89 | 15.25 | 157.23 | 1.60 | |
| reaction 6 | 141.88 | 1.79 | 278.37 | 4.49 | 169.88 | 1.10 | |
| reaction 7 | 158.61 | 0.15 | 297.11 | 16.44 | 185.12 | 1.20 | |
| reaction 8 | 165.07 | 0.99 | 317.94 | 9.56 | 212.60 | 3.92 | |
| reaction 9 | 186.74 | 1.87 | 343.45 | 5.11 | 253.17 | 8.99 | |
| reaction 10 | 210.22 | 3.94 | 368.03 | 3.94 | 289.27 | 11.27 | |
| reaction 11 | 245.51 | 8.62 | 396.07 | 6.62 | 309.38 | 21.45 | |
| reaction 12 | 269.89 | 8.19 | 426.53 | 6.01 | 335.01 | 6.88 | |
| reaction 13 | 286.81 | 16.93 | 456.43 | 9.10 | 367.86 | 6.98 | |
| reaction 14 | 304.12 | 10.12 | 482.14 | 2.60 | 397.76 | 2.87 | |
| reaction 15 | 325.49 | 7.39 | 497.86 | 1.81 | 412.96 | 1.70 | |
| reaction 16 | 348.16 | 4.14 | 517.78 | 2.59 | 425.43 | 1.77 | |
| reaction 17 | 360.54 | 1.92 | 534.80 | 1.35 | 440.23 | 3.52 | |
| reaction 18 | 369.36 | 1.44 | - | - | 465.10 | 6.49 | |
| reaction 19 | 381.98 | 3.25 | - | - | 484.41 | 1.70 | |
| reaction 20 | 393.47 | 1.50 | - | - | 502.59 | 4.83 | |
| reaction 21 | 407.49 | 5.67 | - | - | 534.18 | 4.31 | |
| reaction 22 | 423.14 | 3.42 | - | - | 561.38 | 2.72 | |
| reaction 23 | 435.40 | 3.98 | - | - | - | - | |
| reaction 24 | 445.56 | 1.59 | - | - | - | - | |
| reaction 25 | 455.56 | 2.93 | - | - | - | - | |
| reaction 26 | 469.67 | 1.49 | - | - | - | - | |
| reaction 27 | 478.89 | 1.04 | - | - | - | - | |
| reaction 28 | 486.58 | 0.92 | - | - | - | - | |
| reaction 29 | 497.79 | 1.99 | - | - | - | - | |
| reaction 30 | 509.29 | 0.47 | - | - | - | - | |
| reaction 31 | 517.31 | 0.18 | - | - | - | - | |
| SA | reaction 1 | 64.96 | 0.52 | 92.22 | 6.53 | 41.65 | 0.79 |
| reaction 2 | 76.60 | 2.90 | 182.29 | 7.39 | 101.45 | 7.64 | |
| reaction 3 | 91.51 | 1.29 | 236.22 | 3.45 | 185.63 | 5.82 | |
| reaction 4 | 104.80 | 1.10 | 264.54 | 10.35 | 274.66 | 20.12 | |
| reaction 5 | 115.16 | 0.44 | 301.78 | 12.39 | 318.16 | 4.36 | |
| reaction 6 | 128.82 | 0.70 | 372.56 | 31.86 | 392.48 | 36.87 | |
| reaction 7 | 146.14 | 0.86 | 453.37 | 26.48 | 481.89 | 19.30 | |
| reaction 8 | 159.36 | 1.17 | 512.54 | 1.55 | 536.00 | 5.10 | |
| reaction 9 | 171.11 | 0.48 | - | - | - | - | |
| reaction 10 | 180.81 | 0.66 | - | - | - | - | |
| reaction 11 | 193.13 | 1.17 | - | - | - | - | |
| reaction 12 | 216.93 | 3.44 | - | - | - | - | |
| reaction 13 | 243.16 | 6.42 | - | - | - | - | |
| reaction 14 | 259.56 | 4.69 | - | - | - | - | |
| reaction 15 | 272.95 | 4.39 | - | - | - | - | |
| reaction 16 | 282.15 | 1.60 | - | - | - | - | |
| reaction 17 | 293.70 | 7.93 | - | - | - | - | |
| reaction 18 | 311.83 | 6.84 | - | - | - | - | |
| reaction 19 | 329.85 | 4.55 | - | - | - | - | |
| reaction 20 | 340.99 | 2.33 | - | - | - | - | |
| reaction 21 | 349.33 | 2.11 | - | - | - | - | |
| reaction 22 | 358.12 | 3.16 | - | - | - | - | |
| reaction 23 | 369.83 | 4.40 | - | - | - | - | |
| reaction 24 | 383.66 | 5.27 | - | - | - | - | |
| reaction 25 | 392.52 | 1.38 | - | - | - | - | |
| reaction 26 | 400.50 | 4.18 | - | - | - | - | |
| reaction 27 | 410.59 | 3.75 | - | - | - | - | |
| reaction 28 | 422.10 | 6.38 | - | - | - | - | |
| reaction 29 | 437.22 | 7.12 | - | - | - | - | |
| reaction 30 | 458.24 | 4.91 | - | - | - | - | |
| reaction 31 | 471.23 | 0.89 | - | - | - | - | |
| reaction 32 | 483.41 | 1.94 | - | - | - | - | |
| reaction 33 | 495.97 | 1.01 | - | - | - | - | |
| reaction 34 | 508.20 | 0.02 | - | - | - | - | |
Center = Correspond temperature of DTGmax for reaction.
Percentage = the area of DTG curves for reaction account for total area.