Smelter Casting House Rolling Mill Anode Plant Catalog الكتالوج الفنى

Calcined Coke

      Egyptalum calciner was started-up in 1983 currently produces 140000 tpy. The capacity of the calciner is 140000 tpy . The type of calciner rotary hearth (dish). Calcination is done by heating Anode grade green petroleum coke,usually 1250 - 1350 °C to improve it's chemical and physical properties which increase real density, reflects the strength and conductivity of the coke. The quality of calcined coke is especial im- portant in manufacturing prebacked Anode blocks. Calcined coke quality depend upon:- Green Coke quality,- Coke Heat up,- Bed Temperature and Residense Time . To have a good performance of prebacked Anode should have the Calcined Coke quality attached.  

Specification Of Calcined Coke

Spec.Items     Unit              Value
     Sulfur
%
3.5 Max
     Ash
%
0.5 Max
     Moisture
%
0.05 MAX
     Volatiles
%
0.5 Max
     Nickel
PPM
250 MAX
     Vanadium
PPM
250 MAX
     Calcium
PPM
350 MAX
     Iron
PPM
350 MAX
     Silicon
PPM
250 MAX
     Chromium
PPM
20 MAX
     Magnesium
PPM
30 MAX
     Titanium
PPM
10 MAX
     Sodium
PPM
150 MAX
     Fixed Carbon
%
99 MIN
     Vibrated Bulk Density-
                                     -.08 + .03 mm
                                     -0.5 + 0.3 mm

gm/cm3
gm/cm3

0.85 MIN
0.85 MIN
     Density in He
gm/cm3
2.04 - 2.09
     Specific Electrical Resistance
µ ohm
450 - 550
     Co2 Reactivity
%
3 - 15
     Air Reactivity
%/Minute
0.05 - 0.3