Blar i NTNU Open på forfatter "Schanche, Trygve Lindahl"
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Exergy relations in manganese production: Modelling the submerged arc furnace
Schanche, Trygve Lindahl (Master thesis, 2013)A model of the ferromanganese submerged arc furnace was purposed to yield valuable information for exergy calculations. A deeper understanding of at what point exergy is lost in the furnace might yield valuable information ... -
Isothermal Reduction of Nchwaning Manganese Ore in CO/CO2/H2 Atmospheres
Schanche, Trygve Lindahl; Tangstad, Merete (Journal article, 2021)In the industrial production of manganese ferroalloys, incomplete pre-reduction of higher manganese- and iron oxides in the furnace causes an excess consumption of carbon and energy. Pre-treatment of the manganese raw ... -
Pre-reduction of United Manganese of Kalahari Ore in CO/CO<inf>2</inf>, H<inf>2</inf>/H<inf>2</inf>O, and H<inf>2</inf> Atmospheres
Davies, Emlyn John; Tangstad, Merete; Schanche, Trygve Lindahl; du Preez, Preez (Peer reviewed; Journal article, 2023)The incorporation of hydrogen, which is a relatively unexplored reductant used during ferromanganese (FeMn) production, is an attractive approach to lessen atmospheric gaseous carbon release. The influence of hydrogen on ... -
Prereduction Behavior of Manganese Ores With Solid Carbon and in CO/CO<inf>2</inf> Gas Atmosphere
Mukono, Tichaona; Reiersen, Henrik Stensdal; Schanche, Trygve Lindahl; Wallin, Maria; Tangstad, Merete (Peer reviewed; Journal article, 2022)The prereduction reactions in the submerged arc furnace (SAF) are highly decisive of the total carbon, and energy consumption of the ferromanganese process. Therefore, understanding the dependency of prereduction behavior ... -
Prereduction of Nchwaning Ore in CO/CO2/H2 Gas Mixtures
Schanche, Trygve Lindahl; Tangstad, Merete (Peer reviewed; Journal article, 2021)Prereduction of Nchwaning manganese ore was investigated by isothermal reduction between 600 and 800 °C to optimize the conditions for industrial pretreatment of manganese ores. Experiments were conducted in CO/CO2 gas ... -
Pretreatment of manganese ores in CO/CO2/H2 atmospheres
Schanche, Trygve Lindahl (Doctoral theses at NTNU;2022:401, Doctoral thesis, 2022)During industrial production of manganese ferroalloys, the manganese raw materials are prereduced in the low temperature zone of the submerged arc furnace (SAF). The endothermic Boudouard reaction (CO2 + C = 2CO) consumes ...