Magnetically induced swing adsorption (MISA) has emerged as an electrification-compatible alternative to conventional temperature swing adsorption (TSA), enabling rapid heating/cooling and high desorption efficiency. Recent efforts have focused on designing magnetic sorbents for separation processes such as carbon capture and olefin/paraffin separation.1–4 Because most sorbents are inherently non-magnetic, functionalization with iron oxide particles is required to impart responsiveness to external magnetic fields. This presentation highlights recent advancements in magnetic sorbent development and their performance in CO₂ capture, both from point sources and direct air, and in light hydrocarbon separations. In particular, we demonstrate how magnetic-assisted isothermal adsorption-desorption can be achieved by concentration swings, and how tailoring the shape of magnetic particles modulates not only their magnetic behavior but also adsorption efficiency. We also show that how the trade-offs between magnetic property and adsorption performance can be optimized through novel synthesis routes. These findings open new opportunities for efficient, electrification-ready adsorption processes.
References
(1) Newport, K.; Baamran, K.; Rownaghi, A. A.; Rezaei, F. Ind. Eng. Chem. Res. 2022, 61, 18843−18853.
(2) Baamran, K.; Shareef, U.; Rezaei, F. AIChE Journal 2024, 70 (7).
(3) Baamran, K.; Rownaghi, A. A.; Rezaei, F. ACS Sustain Chem Eng 2023, 11 (23), 8603–8614.
(4) Baamran, K.; Newport, K.; Rownaghi, A. A.; Rezaei, F. Chemical Engineering Journal 2023, 451, 139006.
