| About this Abstract |
| Meeting |
2016 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Reduction Technology
|
| Presentation Title |
Management and Performance of the Largest Gas Treatment Centre at EMAL Potline during Major Shutdown of Main Exhaust Fans |
| Author(s) |
Khawla Mahmoud AlMarzooqi, Shaikha Al shehhi, Vijayakumar Pillai, Sunny John Mathew, Padmaraj Gunjal, Bharat Gadilkar |
| On-Site Speaker (Planned) |
Khawla Mahmoud AlMarzooqi |
| Abstract Scope |
EMAL has recently commissioned Potline 3 currently operating at 455 kA. A large Gas Treatment Center (GTC) serves half of the Potline, connecting to 222 pots and processing 2 million cubic meters of gas every hour. Each GTC is powered by 6 large Main Exhaust Fans (MEF) powered through 6.6 kV switch board, with N-1 design capacity. On 14 April 2015, a major planned shutdown was taken on one section of the switch board with 3 MEFs off-line in the west GTC. This activity lasted for 6 hours during which several actions were taken to maintain GTC operation with minimum impact on Potline. However, as expected, gaseous hydrogen fluoride ( (HF) emission from GTC stack increased during the period. This paper discusses the actions taken before and during the reduced load operation at GTC and the resulting environmental impacts, in addition to the learning from this event. |
| Proceedings Inclusion? |
Planned: Light Metals Volume |