| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrode Technology for Aluminum Production
|
| Presentation Title |
Influence of Selective Crushing and Particle Shape of Shaft and Hearth Calcined Anode Coke Components on Blend Bulk Density |
| Author(s) |
Howard S. Childs, Barbara Chu, Barry Sadler |
| On-Site Speaker (Planned) |
Howard S. Childs |
| Abstract Scope |
The bulk density of petroleum coke used for anode manufacture is important to aluminum smelters as it generally relates to anode baked density, a key anode quality parameter. Coke bulk density has been extensively studied, including previous work by BP that showed how particle shape is modified by different crushers, and that changes in shape influenced coke bulk density. These laboratory studies indicated that the influence of shape on the variation in Vibrated Bulk Density (VBD) of a range of anode filler materials was of similar magnitude as porosity. Further work showed that the VBD of blends of shaft and non-shaft (Rotary hearth) calcined cokes could be improved by jaw crushing the shaft coke in the blend. This work has been continued in further laboratory studies. The impact on VBD of separately crushing the shaft and non-shaft calcined blend components using different crusher types at several particle size ranges has been studied. The results of this work are presented and the ability to improve coke blend quality by modifying shape through selective crushing is discussed. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Other, |