the effect of binder pitch quinoline insolubles content - Coke Oven ...

BINDER PITCH QI CONTENT – ALUMINIUM ANODE
The effect of conditions in the “tunnel head” on the amount of
normal QI formed is shown in Figure 7.
16
14
12
10
Effect of Tunnel-Head Temperature
on Tar QI Content
8
6
8.0
7.5
7.0
6.5
6.0
5.5
870 900 925 955 980 1010 1035
Tunnel-Head Temp., °C
Effect of Coal Bulk Density
on Tar QI
640 655 670 690 705 720 735 750
Bulk Density (Dry, Cone) Kg/m 3
Figure 7 – Tunnel Head Effect on QI Formation
As Figure 7 indicates, there are two major factors which affect the
amount of normal QI which is formed in the coke oven. These
factors are the temperature in the “tunnel head” and the bulk density
of the coal packed in the coke oven. The affect of temperature is
easy to explain, but the affect of the bulk density of the coal is not as
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