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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Electrode Technology for Aluminum Production
Presentation Title Bio-binders and Its Carbonization and Interaction with Petroleum Coke during Baking
Author(s) Goril Jahrsengene, Stein RÝrvik, Anne StÝre, Liang Wang, ōyvind Skreiberg
On-Site Speaker (Planned) Goril Jahrsengene
Abstract Scope To reduce the carbon footprint in aluminium production, bio-based binders are suggested to replace some or all coal tar pitch in the carbon anodes. In this study, bio-binders based on Norwegian spruce and birch woods were produced in a laboratory set-up, which were studied in terms of wetting properties towards petroleum coke. The binders were mixed with petroleum coke and baked to three different temperatures. Graphitization of the binders were investigated on pure carbonized binders by XRD. Optical light microscopy was used to investigate the structures and interactions between coke and binder after baking. The bio-based binders appeared to adhere well to the coke particles, indicating excellent wetting behaviour during mixing. The optical structure of the carbonized bio-binder seemed to be affected by strain due to shrinkage of the bio-binder around the coke grain boundaries.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum,


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Bio-binders and Its Carbonization and Interaction with Petroleum Coke during Baking
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