Integration of ordered porous materials for targeted three-component gas separation

Xue Jiang, Yu Wang, Hui Wang, Lu Cheng, Jian-Wei Cao, Jin-Bo Wang, Rong Yang, Dong-Hui Zhang, Run-Ye Zhang, Xiu-Bo Yang, Su-Hang Wang, Qiu-Yu Zhang (qyzhang@nwpu.edu.cn) and Kai-Jie Chen (ckjiscon@nwpu.edu.cn)
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Xue Jiang: Northwestern Polytechnical University
Yu Wang: Northwestern Polytechnical University
Hui Wang: Northwestern Polytechnical University
Lu Cheng: Northwestern Polytechnical University
Jian-Wei Cao: Northwestern Polytechnical University
Jin-Bo Wang: Northwestern Polytechnical University
Rong Yang: Northwestern Polytechnical University
Dong-Hui Zhang: Tianjin University
Run-Ye Zhang: Tianjin University
Xiu-Bo Yang: Analytical & Testing Center of Northwestern Polytechnical University
Su-Hang Wang: Northwestern Polytechnical University
Qiu-Yu Zhang: Northwestern Polytechnical University
Kai-Jie Chen: Northwestern Polytechnical University

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract Separation of multi-component mixtures in an energy-efficient manner has important practical impact in chemical industry but is highly challenging. Especially, targeted simultaneous removal of multiple impurities to purify the desired product in one-step separation process is an extremely difficult task. We introduced a pore integration strategy of modularizing ordered pore structures with specific functions for on-demand assembly to deal with complex multi-component separation systems, which are unattainable by each individual pore. As a proof of concept, two ultramicroporous nanocrystals (one for C2H2-selective and the other for CO2-selective) as the shell pores were respectively grown on a C2H6-selective ordered porous material as the core pore. Both of the respective pore-integrated materials show excellent one-step ethylene production performance in dynamic breakthrough separation experiments of C2H2/C2H4/C2H6 and CO2/C2H4/C2H6 gas mixture, and even better than that from traditional tandem-packing processes originated from the optimized mass/heat transfer. Thermodynamic and dynamic simulation results explained that the pre-designed pore modules can perform specific target functions independently in the pore-integrated materials.

Date: 2025
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DOI: 10.1038/s41467-025-55991-y

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