Induction Vacuum Swing Adsorption over Magnetic Sorbent Monoliths and Extrudates for Ethylene/ethane Separation

Author

Khaled Baamran
Usman Shareef
Fateme Rezaei, Missouri University of Science and TechnologyFollow

Abstract

Electrification of adsorption processes is emerging as an adaptable solution for future gas separations. This study develops magnetic sorbent structures for use in induction vacuum swing adsorption (IVSA) process specifically designed for olefin/paraffin separation. Two sorbents, namely Fe₃O₄/ZIF-7 (ethane-selective) and Fe₃O₄/13X (ethylene-selective) were developed and formulated into extrudates (Fe₂₀/ZIF-7-P) and monoliths (Fe₂₀/13X-M), and tested under different regeneration scenarios, including simultaneous and subsequent induction-evacuation, induction only, and evacuation only. The dynamic adsorption results demonstrated that regeneration under subsequent induction-evacuation improves desorption rate and capability. Under this regeneration scenario, Fe₂₀/ZIF-7-P achieved an ethane desorption rate of 0.24 mmol/g.min, representing a remarkable 37.5% enhancement over the induction-only scenario. Similarly, Fe₂₀/13X-M exhibited an ethylene desorption rate of 0.35 mmol/g.min, indicative of a 34.2% enhancement. Moreover, the IVSA cyclic runs highlighted the excellent regeneration capability and stability of both Fe₂₀/ZIF-7-P and Fe₂₀/13X-M with Fe₂₀/13X-M exhibiting ethylene purity, recovery, and productivity of 99.4%, 99.6%, and 39.9 mol/kg.h, respectively. Overall, these findings underscore the potential of the hybrid induction/vacuum process as an effective technique for achieving efficient regeneration of sorbents in olefin/paraffin separation.

Recommended Citation

K. Baamran et al., "Induction Vacuum Swing Adsorption over Magnetic Sorbent Monoliths and Extrudates for Ethylene/ethane Separation," AIChE Journal, vol. 70, no. 7, article no. e18401, Wiley; American Institute of Chemical Engineers (AIChE), Jul 2024.

The definitive version is available at https://doi.org/10.1002/aic.18401

Department(s)

Chemical and Biochemical Engineering

Publication Status

Full Access

Comments

National Science Foundation, Grant CBET‐2232875

Keywords and Phrases

13X; C H /C H separation 2 6 2 4; Fe O 3 4; induction vacuum swing adsorption; ZIF-7

International Standard Serial Number (ISSN)

1547-5905; 0001-1541

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Wiley; American Institute of Chemical Engineers (AIChE), All rights reserved.

Publication Date

01 Jul 2024