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Nano Research 2021, 14(2): 541-545 https://doi.org/10.1007/s12274-020-2831-8
Research Article | Issue | Published: 22 May 2020

Remarkable separation of C5 olefins in anion-pillared hybrid porous materials

Show Author's Information Ying Yu1,§,  Lifeng Yang1,2,§,  Bin Tan3,  Jianbo Hu1,2,  Qingju Wang1,  Xili Cui1,2,( ),  Huabin Xing1,2
Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
Institute of Zhejiang University - Quzhou, Quzhou 324000, China
Ningxia Coal Industry Co., Ltd, CHN Energy, Shizuishan 753200, China

§ Ying Yu and Lifeng Yang contributed equally to this work.

Keywords:
metal-organic frameworks, adsorption, separation, C5 olefin
Topics:
Nano unitPorous materials
Cite this article:
Yu Y, Yang L, Tan B, et al. Remarkable separation of C5 olefins in anion-pillared hybrid porous materials. Nano Research, 2021, 14(2): 541-545. https://doi.org/10.1007/s12274-020-2831-8
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Abstract Full text Electronic supplementary material About this article

C5 olefin separation is of great importance and challenge in industry with the increasing demand for synthetic rubber. However, the related study is limited due to the complex compositions and the similar boiling points. Here, we for the first time employ two anion-pillared hybrid porous materials (ZU-62 and TIFSIX-2-Cu-i) towards the challenging separation of C5 olefin mixtures (trans-2-pentene, 1-pentene and isoprene). These two adsorbents not only exhibit the unprecedented separation performance, but also show excellent recycle performance. Owing to the favorable electrostatic environment within a suitable confined space, TIFSIX-2-Cu-i is able to distinguish the three C5 olefins (trans-2-pentene, 1-pentene and isoprene) with a high uptake of trans-2-pentene (3.1 mmol·g-1). ZU-62 (also termed as NbOFFIVE-2-Cu-i) with contracted aperture size shows exclusion effect to the relatively large molecule of isoprene at low pressure range (0-6 kPa), contributing to the excellent separation selectivity of 1-pentene/isoprene (300). The excellent separation performance of ZU-62 and TIFSIX-2-Cu-i is verified by the breakthrough experiment. And interestingly, the regeneration tests show that C5 olefins can be easily desorbed from ZU-62, TIFSIX-2-Cu-i under 298 K. Moreover, the detailed adsorption behavior is further revealed by simulation studies.


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Electronic supplementary material
About this article

Remarkable separation of C5 olefins in anion-pillared hybrid porous materials

Show Author's information Ying Yu1,§, Lifeng Yang1,2,§, Bin Tan3, Jianbo Hu1,2, Qingju Wang1, Xili Cui1,2,( ), Huabin Xing1,2
Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
Institute of Zhejiang University - Quzhou, Quzhou 324000, China
Ningxia Coal Industry Co., Ltd, CHN Energy, Shizuishan 753200, China

§ Ying Yu and Lifeng Yang contributed equally to this work.

Abstract

C5 olefin separation is of great importance and challenge in industry with the increasing demand for synthetic rubber. However, the related study is limited due to the complex compositions and the similar boiling points. Here, we for the first time employ two anion-pillared hybrid porous materials (ZU-62 and TIFSIX-2-Cu-i) towards the challenging separation of C5 olefin mixtures (trans-2-pentene, 1-pentene and isoprene). These two adsorbents not only exhibit the unprecedented separation performance, but also show excellent recycle performance. Owing to the favorable electrostatic environment within a suitable confined space, TIFSIX-2-Cu-i is able to distinguish the three C5 olefins (trans-2-pentene, 1-pentene and isoprene) with a high uptake of trans-2-pentene (3.1 mmol·g-1). ZU-62 (also termed as NbOFFIVE-2-Cu-i) with contracted aperture size shows exclusion effect to the relatively large molecule of isoprene at low pressure range (0-6 kPa), contributing to the excellent separation selectivity of 1-pentene/isoprene (300). The excellent separation performance of ZU-62 and TIFSIX-2-Cu-i is verified by the breakthrough experiment. And interestingly, the regeneration tests show that C5 olefins can be easily desorbed from ZU-62, TIFSIX-2-Cu-i under 298 K. Moreover, the detailed adsorption behavior is further revealed by simulation studies.

Keywords: metal-organic frameworks, adsorption, separation, C5 olefin

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Publication history
Copyright
Acknowledgements

Publication history

Received: 28 February 2020
Revised: 14 April 2020
Accepted: 25 April 2020
Published: 22 May 2020
Issue date: February 2021

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature

Acknowledgements

This work was supported by the Zhejiang Provincial Natural Science Foundation of China (No. LR20B060001), the Key Research and Development Program of Ningxia (No. 2018BDE02057), the National Natural Science Foundation of China (No. U1862110 and 21938011), Zhejiang University Academic Award for Outstanding Doctoral Candidates, and the Research Computing Center in College of Chemical and Biological Engineering at Zhejiang University. The single-crystal X-ray diffraction data of TIFSIX-2-Cu-i have been deposited in the Cambridge Crystallographic Data Centre under accession number CCDC: 1857691.

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