| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrode Technology for Aluminum Production
|
| Presentation Title |
Dynamics of Anode Baking Furnace VOC Emissions through a Firing Cycle |
| Author(s) |
Ole S. Kjos, Thor Aarhaug, Heiko Gaertner, Anders Brunsvik |
| On-Site Speaker (Planned) |
Ole S. Kjos |
| Abstract Scope |
The anode baking process produces significant amounts of volatile organic compounds (VOC) and polyaromatic hydrocarbons (PAH). Measuring the full range of these emissions is costly and time consuming. However, VOC and lighter PAH components that exists mainly in gas phase can be measured by simpler means. Establishing a known ratio between the components could enable estimates of the total emissions by following certain proxy components.
To document the distribution, and time profiles, of VOC and light PAH components different sampling methodologies with time resolution better than 30 minutes were evaluated. Measurements using TD tubes, a PID instrument and a GC-FID were conducted up and downstream the gas treatment center. Removal efficiencies of selected VOC were calculated. In addition, dynamics between different gas components during the firing cycle was shown, indicating high initial load of light VOC just after the onset of the firing cycle while heavier components emerged later. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Environmental Effects, Aluminum, Process Technology |