• CO Reactivity of Manganese Lumps Versus Briquettes 

      Jesus, Leandro Gustavo de Mendes; Tangstad, Merete (Peer reviewed; Journal article, 2020)
      In this work, a comparison between CO reactivity of lumps and briquettes made of two different binder and three different raw materials is presented. Experimental results on the prereduction behavior of such materials in ...
    • Experimental and Numerical Study on Tapping of Two Liquids through a Single Tap-Hole 

      Loomba, Varun; Olsen, Jan Erik Øvrebø; Reynolds, Quinn Gareth; Oxtoby, Oliver; Einarsrud, Kristian Etienne (Journal article; Peer reviewed, 2023)
      The production of industrial metals in pyrometallurgical smelting furnaces is central to modern industry. Tapping of metal and slag from smelting furnaces is a complex and difficult process. Any variations from tap to tap ...
    • Kinetics Analysis of Steam Reforming of Methane on Sponge Iron 

      Ramos Ribeiro, Tiago; Ferreira Neto, João Batista; Rocha Poço, João Guilherme; Takano, Cyro; Kolbeinsen, Leiv; Ringdalen, Eli (Peer reviewed; Journal article, 2022)
      The kinetics of steam reforming of methane catalyzed by sponge iron was studied at temperatures between 875°C and 1050°C. Results shows that sponge iron acts as a catalyst and methane conversion is increased in higher ...
    • Pre-reduction Behaviour of Manganese Ores in H2 and CO Containing Gases 

      Ngoy, Didier; Dmitry, Sukhomlinov; Tangstad, Merete (Peer reviewed; Journal article, 2020)
      This paper presents results of a study conducted on the pre-reduction of Assmang and Comilog ores with gases of CO+CO2 and CO+H2+CO2 up to 1 000°C. Non-isothermal experiments were carried out in a vertical thermogravimetric ...
    • Steam Reforming of Methane on Sponge Iron: Influence of GasComposition on Reaction Rate 

      Ramos Ribeiro, Tiago; Neto, João Batista Ferreira; Poco, Joao G R; Takano, Cyro; Kolbeinsen, Leiv; Ringdalen, Eli (Peer reviewed; Journal article, 2020)
      Direct Reduction processes use gases (CO and H2) for iron reduction and production of sponge iron or direct reduced iron (DRI). The generation of this gas occurs through methane reforming, which can be done in a reformer ...