Table 2 XRF analysis of the raw materials (wt%).

From: Synergistic catalytic mechanism of red mud in the co-gasification of spirit-based distillers’ grains and sewage sludge

Sample

Al2O3

SiO2

Fe2O3

TiO2

CaO

MgO

Na2O

K2O

Other

SS

21.70

38.80

7.28

1.35

18.41

4.02

0.224

2.05

6.166

SDG

8.24

52.44

4.08

0.52

7.31

4.85

2.60

8.24

11.72

RM

27.40

14.86

26.07

4.24

10.74

1.59

8.51

4.25

2.34

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