| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Primary Processing - Decarbonization and Sustainability in Aluminum Primary Processing: Joint Session of Aluminum Reduction, Electrode Technology, and REWAS 2025
|
| Presentation Title |
Progress of Carbon Capture Efforts in Primary Aluminum Smelting |
| Author(s) |
Stephan Broek, Geert F. Versteeg |
| On-Site Speaker (Planned) |
Stephan Broek |
| Abstract Scope |
The use of carbon capture technology in primary aluminum smelting is recognized as an important tool to combat scope 1 emissions from the electrolysis process and potentially also from the anode baking furnaces.
The introduction of CO2 capture technology in primary aluminum smelting should have a focus on the integration in potline operations and on the type of technology used to capture the CO2. A challenge that often is a topic of discussion is that the concentration of CO2 is only 1 volume percent while in other industrial applications of CO2 capture the concentrations are (much) higher. In this paper we address the challenge of working with low CO2 concentrations and why it is also very difficult to raise them.
Regarding the CO2 capture technology, the focus of the paper is on the amine solvent-based process to absorb CO2 from ventilation gases. Other options are shown but this process route has a relatively high TRL level and can be scaled up in a short time to commercial levels if so required. Simulations have been performed to investigate the expected process parameters and the results and several observations are presented in this paper. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Sustainability, Other |