About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
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| Symposium
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Aluminum Reduction Technology
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| Presentation Title |
Actual measurement evaluation of perfluorocarbon(PFC) emissions from pre-aluminum reduction cells, calculation deviations, and process-based emission reduction strategies |
| Author(s) |
Zhian Jiang, Hongkun Niu, Shengzhong Bao, Changlin Li, Qiang Yu, Junqing Wang, Yuechao Guan, Xu Zhao |
| On-Site Speaker (Planned) |
Zhian Jiang |
| Abstract Scope |
Perfluorocarbons (PFCs) feature extreme global warming potential and long atmospheric lifetime, with aluminum electrolysis as their major emission source. As China leads global primary aluminum output, PFC mitigation is vital for the aluminum industry’s dual carbon goals. This paper illustrates PFC formation mechanisms from anode effects and non-anode-effect reactions in typical Chinese reduction cells via IPCC Tier 3 continuous monitoring. The measured PFC emission equals 0.8839 tCO₂e per ton of aluminum, higher than the industry default of 0.2523 tCO₂e yet far below the IAI’s 1.3 tCO₂e/t-Al figure for China. Frequent and prolonged anode effects dominate PFC generation. Process reduction strategies covering cell control upgrading, process optimization, cell structure improvement, raw material management and PFC-free electrolysis are proposed. Current bottlenecks include immature end-of-pipe recovery and incomplete domestic monitoring, standard and supervision systems. Huge PFC reduction potential exists in China’s aluminum sector, requiring improved monitoring and source control technologies for low-carbon transformation. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Environmental Effects, Aluminum, Sustainability |