Table 2 Characteristics of used materials in this study.

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

 

Proximate analysis/%

Ultimate analysis/%

HHV (MJ/kg)

Moisture

Volatile

Ash

Fixed carbon

C

H

O*

N

S

 

Raw coal

3.79

31.61

21.47

45.93

60.58

1.41

35.08

1.29

1.64

24.21

Coal ash (XRF)

SiO2

Al2O3

Fe2O3

CaO

TiO2

MgO

K2O

Na2O

  

47.9

42.8

4.68

2.13

1.17

0.59

0.33

0.14

Steel slags (XRF)

CaO

Fe2O3

SiO2

MgO

Al2O3

MnO

P2O5

TiO2

V2O5

Fe2+/TFe

41.90

22.57

15.60

7.26

4.10

4.00

1.75

1.42

0.62

0.62

  1. *Calculated by difference.
Back to article page