| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Industry Emissions Measurement, Reporting & Reduction
|
| Presentation Title |
Determination of PFC with Canister Sampling and Medusa GC-MS Analysis in Comparison to General IPCC Estimation Methods |
| Author(s) |
Henrik Aasheim, Morten Isaksen, Norbert Schmidbauer, Ove Hermansen, Chris Lunder |
| On-Site Speaker (Planned) |
Henrik Aasheim |
| Abstract Scope |
Most aluminum smelters today report on their Perfluorocarbon (PFC) emissions by a method that is derived from the IPCC Guidelines for National Greenhouse Inventories of 2006 or 2019. Often the default industry emission factors have been employed (Tier 1/2), however, many companies are looking into acquiring plant specific factors (Tier 3). Hydro and Norwegian Institute for Air Research (NILU) have been testing a method of time-integrated air sampling where canisters are used to extract gas from different smelter locations that can later be measured by Medusa GC-MS. Sampling duration is determined by gas flow and canister size and the PFC detection limit is down to ambient air – making the method very applicable to low emitting smelters. Preliminary results from stack and roof sampling deviate from 2006 IPCC Tier 2 slope estimation, whereby the measurements, a total PFC method, show a CO2e reduction of almost 30% compared to the estimation. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Environmental Effects, Other |