Table 3:
XRF analyses of coke ash and lignite ash.
Fuel
Oxide content in wt.%
Na
2
O
MgO
Al
2
O
3
SiO
2
K
2
O
CaO
TiO
2
Fe
2
O
3
BaO
SO
3
Balance
Coke
a
3.43
17.74
4.12
0.57
1.61
31.34
0.23
12.52
0.35
16.84
11.25
Lignite
a
d.l.
9.90
4.30
9.38
0.19
25.17
0.22
26.82
0.12
22.00
1.90
wf: water free; d.l.: below detection limit;
a
: ash 450 °C