• A XANES Study of Sulfur Speciation and Reactivity in Cokes for Anodes Used in Aluminum Production 

      Jahrsengene, Gøril; Wells, Hannah C.; Rørvik, Stein; Ratvik, Arne Petter; Haverkamp, Richard G.; Svensson, Ann Mari (Journal article; Peer reviewed, 2018)
      Availability of anode raw materials in the growing aluminum industry results in a wider range of petroleum cokes being used to produce carbon anodes. The boundary between anode grade cokes and what previously was considered ...
    • An EXAFS and XANES Study of V, Ni, and Fe Speciation in Cokes for Anodes Used in Aluminum Production 

      Jahrsengene, Gøril; Wells, Hannah C.; Sommerseth, Camilla; Ratvik, Arne Petter; Lossius, Lorentz Petter; Sizeland, Katie H.; Kappen, Peter; Svensson, Ann Mari; Haverkamp, Richard G. (Journal article; Peer reviewed, 2019)
      Lower-quality petroleum coke with higher levels of sulfur and metal impurities will have to be used for the manufacturing of anodes for aluminum production in the future. The sulfur and metallic impurities affect the anode ...
    • Bio-Binders and its Carbonization and Interaction with Petroleum Coke during Baking 

      Jahrsengene, Gøril; Rørvik, Stein; Støre, Anne; Wang, Liang; Skreiberg, Øyvind (Peer reviewed; Journal article, 2022)
      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 ...
    • Reactivity of coke in relation to sulfur level and microstructure 

      Jahrsengene, Gøril; Rørvik, Stein; Ratvik, Arne Petter; Lossius, Lorentz Petter; Haverkamp, Richard G.; Svensson, Ann Mari (The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2019)
      Shrinkage induced flow, thermo-solutal convection and equiaxed grain motion are the major transport mechanisms contributing to macrosegregation formation in aluminum alloys produced through Direct Chill casting. Experimental ...