I forskningsgruppen innen saltsmelteteknologi utforsker vi hvordan vi kan bruke saltsmelter innen energirelaterte problemstillinger.
Om forskningsgruppen
Saltsmelter er ioniske forbindelser som er i fast fase ved romtemperatur, men blir flytende når de varmes opp. Saltsmelter er generelt termisk stabile, de har gode varmeoverføringsegenskaper, de kan fungere som løsemidler, og noen saltsmelter har katalytiske egenskaper.
På REALTEK forsker vi på hvordan disse egenskapene kan utnyttes når saltsmelter benyttes som reaksjonsmedier for bl.a. konvertering av biomasse til biodrivstoff og CO2-fangst. Vi jobber eksperimentelt på labskala for å forstå grunnprinsippene i disse prosessene. I tillegg jobber vi med teoretiske modelleringer for å utvikle nye fasediagram for saltsmelter, samt prosess-simuleringer for framtidig oppskalering av teknologiene. Vi samarbeider med forskjellige partnere og institutter, både i Norge og internasjonalt.Niazi, Sepideh; Olsen, Espen; Nygård, Heidi S Hydrolysis of eutectic compositions in the ZnCl2:KCl:NaCl ternary system and effect of adding ZnO Journal of Molecular Liquids 2020, 317, 114069. Grøtan, Åshild; Olsen, Espen; Nygård, Heidi S Carbon Capture with Metal Oxides in Molten Salts: MgO, SrO and CaO as Sorbents SINTEF proceedings 2019 (4) s. 63-75. Nygård, Heidi S.; Meyer, Julien; Di Felice, Luca; Eldrup, Nils Henrik; Haug, Alf Tore; Olsen, Espen Techno-economic study of the CCMS Technology for CO2 capture from ferro-silicon production SINTEF proceedings 2019 (4) s. 63-75. Nygård, Heidi S; Hansen, Maria; Alhaj-Saleh, Yasen; Palimaka, Piotr; Pietrzyk, Stanislaw; Olsen, Espen Experimental evaluation of chemical systems for CO2 capture by CaO in eutectic CaF2-CaCl2 AIMS Energy 2019. 7. p. 619-633. Olsen, Espen; Hansen, Maria; Nygård, Heidi S Hydrolysis of molten CaCl2-CaF2 with additions of CaO AIMS Energy 2017; 5, (6), p. 873-886. Nygård, Heidi S.; Tomkute, Viktorija; Olsen, Espen Kinetics of CO2 absorption by calcium looping in molten halide salts Energy Procedia 2017; 114, p. 250-258. Tomkute, Viktorija; Solheim, Asbjørn; Sakirzanovas, SImas; Olsen, Espen Reactivity of CaO with CO2 in molten CaF2–NaF: formation and decomposition of carbonates Energy Science & Engineering 4.3 (2016): 205-216. Nygård, Heidi S.; Olsen, Espen Molten salt pyrolysis of milled beech wood using an electrostatic precipitator for oil collection AIMS Energy 2015; 3 (3), p. 284-296 Nygård, Heidi S.; Olsen, Espen Effect of salt composition and temperature on the thermal behavior of beech wood particles in molten salt pyrolysis. Energy Procedia 2014; 58, p. 221-228. Tomkute, Viktorija, Solheim, Asbjørn; Sakirzanovas, SImas; Øye, Bjarte; Olsen, Espen Phase equilibria evaluation for CO2 capture: CaO–CaF2–NaF, CaCO3–NaF–CaF2, and Na2CO3–CaF2–NaF Journal of Chemical & Engineering Data 59.4 (2014): 1257-1263. Olsen, Espen, and Viktorija Tomkute Carbon capture in molten salts Energy Science & Engineering 1.3 (2013): 144-150. Tomkute, Viktorija, Asbjørn Solheim, and Espen Olsen Investigation of high-temperature CO2 capture by CaO in CaCl2 molten salt Energy & Fuels 2013, 27, 9: pp. 5373-5379. Nygård, Heidi S.; Danielsen, Filip; Olsen, Espen Thermal History of Wood Particles in Molten Salt Pyrolysis Energy & Fuels 2012; 26 (10) p. 6419-6425. Westerhof, R. J. M.; Nygård, Heidi S.; Swaaij, W. P. M. van; Kersten, S. R. A.; Brilman, D. W. F. Effect of Particle Geometry and Microstructure on Fast Pyrolysis of Beech Wood Energy & Fuels 2012; 26 (4) p. 2274-2280. Nygård, Heidi S.; Olsen, Espen Review of thermal processing of biomass and waste in molten salts for production of renewable fuels and chemicals International Journal of Low-Carbon Technologies 2012; 7 (4) p. 318-324. - Sepideh Niazi, 2022: Experimental and theoretical evaluation of thermodynamic properties of low melting chlorides suitable for liquefaction of biomass
- Heidi S. Nygård, 2015: The potential of molten salts as heat transfer media in fast pyrolysis of wood
- Viktorija Tomkute, 2014: Carbon capture by CaO in molten halide salts
- Helene Flakke, 2021: Electrochemical Removal of Impurities in Molten ZnCl2-NaCl-KCl
- Petter Nygård Lerøen, 2020: Carbon Capture in Molten Salts: An extensive survey of chemical systems with MgO as sorbent
- Åshild Grøtan, 2019: Carbon Capture with Metal Oxides in Molten Salts: MgO, SrO and CaO as sorbents
- Nils Amund Rusås Ruud, 2018: Carbon Capture in Molten Salts: The Effect of Sulfation
- Maria Hansen, 2017: Carbon Capture in Molten Salts: The Effect of Hydrolysis
- Yasen Alhaj-Salah, 2014: Carbon Capture in Molten Salts: Absorption and Desorption of CO2 by CaO-sorbent in Eutectic CaF2/CaCl2-melt
- Ana Korvald, 2012: Carbon Capture in Molten Salts: Absorption and Desorption of CO2 by CaO in Molten NaF/CaF2