Table 12 CPI Index of a raw and torrefied sample at different heating rates.

From: Thermogravimetric analysis of rice husk and low-density polyethylene co-pyrolysis: kinetic and thermodynamic parameters

Feedstock

Heating rate

Ti

Tp

− Ra

− Rm

ΔT1/2

CPI

Raw

RH: LDPE

(50:50)

10

293

381

1.40

18.10

80.3

1.2

20

300

400

2.82

30.3

77.7

2.5

30

314

412

3.53

42.3

75.7

3.6

40

321

420

4.69

58.08

58.9

4.9

Raw

RH: LDPE

(75:25)

10

256

369

1.23

10.5

82.5

2.1

20

263

375

2.21

21.09

78.2

2.9

30

270

382

3.26

43.7

76.2

3.5

40

278

390

4.38

64.7

72.11

4.1

Raw

RH: LDPE

(25:75)

10

345

418

1.54

28.32

36.2

1.9

20

350

424

2.12

29.7

41.8

2.8

30

360

433

3.06

51.07

38.02

4.3

40

381

440

4.10

67.9

42.9

6.5

  1. Ra -average decomposition rate (40–600 °C), Rm- weight loss at 600 °C, CPI-comprehensive pyrolysis index at 600 °C, CPI unit: 10−6/℃3 min2.
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