Table 1 Kinetic mechanism of char/CO2 gasification and the derived kinetic parameters.

From: Integration of coal gasification and waste heat recovery from high temperature steel slags: an emerging strategy to emission reduction

Kinetic Model

A2

A4

Avrami-Erofeev (m=2)

Avrami-Erofeev (m=4)

Integral function

[−ln(1−x)]1/2

[−ln(1−x)]1/4

Sample

T/oC

k/min−1

R2

Ea/kJ mol−1

T/oC

k/min−1

R2

Ea/kJ mol−1

S1

1000

0.01796

0.9805

95.7

1000

0.00895

0.9107

92.6

1100

0.05381

0.9952

1100

0.02590

0.9456

1200

0.05999

0.9230

1200

0.02874

0.8401

S2

1000

0.09571

0.9280

12.1

1000

0.05371

0.9909

13.8

1100

0.10628

0.8985

1100

0.06145

0.9954

1200

0.11164

0.9031

1200

0.06397

0.9905