Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158095 - 158095
Published: Nov. 1, 2024
Language: Английский
AIChE Journal, Journal Year: 2024, Volume and Issue: 70(7)
Published: April 8, 2024
Abstract Electrification of adsorption processes is emerging as an adaptable solution for future gas separations. This study develops magnetic sorbent structures use in induction vacuum swing (IVSA) process specifically designed olefin/paraffin separation. Two sorbents, namely Fe 3 O 4 /ZIF‐7 (ethane‐selective) and /13X (ethylene‐selective) were developed formulated into extrudates (Fe 20 /ZIF‐7‐P) monoliths /13X‐M), tested under different regeneration scenarios, including simultaneous subsequent induction‐evacuation, only, evacuation only. The dynamic results demonstrated that induction‐evacuation improves desorption rate capability. Under this scenario, /ZIF‐7‐P achieved ethane 0.24 mmol/g.min, representing a remarkable 37.5% enhancement over the induction‐only scenario. Similarly, /13X‐M exhibited ethylene 0.35 indicative 34.2% enhancement. Moreover, IVSA cyclic runs highlighted excellent capability stability both with exhibiting purity, recovery, productivity 99.4%, 99.6%, 39.9 mol/kg.h, respectively. Overall, these findings underscore potential hybrid induction/vacuum effective technique achieving efficient sorbents
Language: Английский
Citations
4
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 28, 2025
Abstract Constructing a metal‐free adsorbent for one‐step separation of C 2 H 4 from mixture gas C2, is great significance and challenging. Here, porous aromatic cage ( PAC‐1 ) based on aldehyde‐amine condensation reported with diamond‐like interconnected cavity‐channel pores purification ethylene. exhibits superior (52.6 cm 3 g −1 6 (46.7 uptakes as well impressive /C selectivity (1.5) (1.4), remaining at the forefront advanced ‐selective adsorbents non‐metallic materials. The adsorption enthalpy (Q st 23.6 kJ mol , which requires less energy to regenerate than conventional MOF Breakthrough experiments demonstrate that can reduce penetration rate or through adsorbent, present quite valuable gas. Molecular simulations DFT studies have shown oxygen sites C─H in channels are more favorable anchor interaction over by 1.48 kcal C─H…π point cavity preferred 1.16 turn results .
Language: Английский
Citations
0
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155089 - 155089
Published: Aug. 28, 2024
Language: Английский
Citations
2
Membranes, Journal Year: 2024, Volume and Issue: 14(8), P. 178 - 178
Published: Aug. 20, 2024
In this study, we investigate the influence of cold-plasma-induced enhanced performance and efficiency SAPO-34 membranes in separation CO2 CH4 mixtures. Placing herein presented research a broader context, aim to address question whether cold plasma can significantly impact membrane performance. We subjected mild disturbances analyzed their separating CH4. Our findings reveal notable enhancement sustained when exposed plasma. The pulsed displayed improved structural integrity, experimental results indicated that linear structure CO₂ facilitates distortion electron clouds response electric field, property known as polarizability, which aids effective separation. Plausible mechanistic insight intermolecular forces facilitated an integral role exhibiting strong electrostatic interactions. conclusion, our highlights potential promising technique for improving gas mixtures at atmospheric pressures, providing valuable insights optimizing technology carbon capture applications.
Language: Английский
Citations
2
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158095 - 158095
Published: Nov. 1, 2024
Language: Английский
Citations
0