About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Electrode Technology Symposium
|
| Presentation Title |
Minimizing Segregation in Rotary and Shaft Calcined Coke Blends |
| Author(s) |
Howard S. Childs, Sara Enstrom, Barbara Cramer, Barry Sadler |
| On-Site Speaker (Planned) |
Howard S. Childs |
| Abstract Scope |
Shaft calcined coke use in Aluminum smelter carbon plant coke feed blends has grown due to potential increases in anode density. Industry perception has generally held structural differences between shaft and rotary calcined cokes in blends increases the risk of segregation during transport and handling compared to rotary coke blends. As part of industry support work by BP Coke at their Huntington Beach (USA) laboratory, segregation tendencies of several rotary and shaft calcined cokes/blends were evaluated. Ways of minimizing this segregation were also evaluated. Segregation behavior measurements were based on ASTM D6940 – a test for sifting segregation tendencies of bulk solids – adapted and scaled up for calcined coke particle sizes. Results demonstrated that segregation behavior of blends could be predicted from individual coke properties and that particle size was the dominant influence on segregation. This provides a technical basis for the supply of pre-blended shaft/rotary cokes from calciners |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Other, Other, Other |