Abstract
Process data has been collected to describe the energy flows between industrial clients located at Mo Industripark
(MIP). The annual energy flow (in GWh) has been visualised in the form of Sankey diagrams while the quality of the
available energy is presented in the form of a grand composite curve which describes the amounts of latent energy
available at different temperature levels. High temperature flue gas from ferrosilicon (FeSi) production at Elkem Rana
represent the largest heat source available for utilisation. A theoretical assessment of potential applications for this
energy is presented and includes: 1) electricity production (via a steam Rankine cycle); 2) biocarbon production, where
surplus heat is utilised for drying of wood chips produced at MIP; 3) carbon capture (via amine based post combustion
technology), where surplus heat is utilised for amine solvent regeneration. The theoretical studies indicate that the MIP
ambition from 2016 of increasing the energy recovery from 400 GWh to 640 GWh is realistic and may contribute both
to increasing the energy recovery and facilitate overall reductions in the carbon footprint of the activities at MIP.
The three scenarios which have been explored theoretically are for simplicity closely linked to the Elkem production
process. However, there are obvious synergies with the ferromanganese (FeMn) and silicomanganese (SiMn) production at Ferroglobe, both in terms of biocarbon production and carbon capture facilities. The existing CO network at MIP
distributing CO rich flue gas from Ferroglobe is a valuable asset. Today CO gas is used for energy purposes by Celsa
and SMA, but parts of the gas may also be a valuable resource for upgrading of pyrolysis oil from a future biocarbon
production line. Investment in a common utility network for surplus heat may lower the threshold for establishing other
energy clients at MIP. These are some of the possibilities which may be investigated in more detail in future work.
(MIP). The annual energy flow (in GWh) has been visualised in the form of Sankey diagrams while the quality of the
available energy is presented in the form of a grand composite curve which describes the amounts of latent energy
available at different temperature levels. High temperature flue gas from ferrosilicon (FeSi) production at Elkem Rana
represent the largest heat source available for utilisation. A theoretical assessment of potential applications for this
energy is presented and includes: 1) electricity production (via a steam Rankine cycle); 2) biocarbon production, where
surplus heat is utilised for drying of wood chips produced at MIP; 3) carbon capture (via amine based post combustion
technology), where surplus heat is utilised for amine solvent regeneration. The theoretical studies indicate that the MIP
ambition from 2016 of increasing the energy recovery from 400 GWh to 640 GWh is realistic and may contribute both
to increasing the energy recovery and facilitate overall reductions in the carbon footprint of the activities at MIP.
The three scenarios which have been explored theoretically are for simplicity closely linked to the Elkem production
process. However, there are obvious synergies with the ferromanganese (FeMn) and silicomanganese (SiMn) production at Ferroglobe, both in terms of biocarbon production and carbon capture facilities. The existing CO network at MIP
distributing CO rich flue gas from Ferroglobe is a valuable asset. Today CO gas is used for energy purposes by Celsa
and SMA, but parts of the gas may also be a valuable resource for upgrading of pyrolysis oil from a future biocarbon
production line. Investment in a common utility network for surplus heat may lower the threshold for establishing other
energy clients at MIP. These are some of the possibilities which may be investigated in more detail in future work.
