Zeolites for the separation of ethylene, ethane, and ethyne

IF 4.3 3区工程技术 Q2 ENGINEERING, CHEMICAL

Frontiers of Chemical Science and Engineering Pub Date : 2024-06-12 DOI:10.1007/s11705-024-2459-4

Binyu Wang, Qiang Li, Haoyang Zhang, Jia-Nan Zhang, Qinhe Pan, Wenfu Yan

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Abstract

The cost-effective separation of ethylene (C₂H₄), ethyne (C₂H₂), and ethane (C₂H₆) poses a significant challenge in the contemporary chemical industry. In contrast to the energy-intensive high-pressure cryogenic distillation process, zeolite-based adsorptive separation offers a low-energy alternative. This review provides a concise overview of recent advancements in the adsorptive separation of C₂H₄, C₂H₂, and C₂H₆ using zeolites or zeolite-based adsorbents. It commences with an examination of the industrial significance of these compounds and the associated separation challenges. Subsequently, it systematically examines the utilization of various types of zeolites with diverse cationic species in such separation processes. And then it explores how different zeolitic structures impact adsorption and separation capabilities, considering principles such as cation-π interaction, π-complexation, and steric separation concerning C₂H₄, C₂H₂, and C₂H₆ molecules. Furthermore, it discusses methods to enhance the separation performance of zeolites and zeolite-based adsorbents, encompassing structural design, modifications, and ion exchange processes. Finally, it summarizes current research trends and future directions, highlighting the potential application value of zeolitic materials in the field of C₂H₄, C₂H₂, and C₂H₆ separation and offering recommendations for further investigation.

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用于分离乙烯、乙烷和乙炔的沸石

如何经济高效地分离乙烯（C2H4）、乙炔（C2H2）和乙烷（C2H6）是当代化工行业面临的一项重大挑战。与高能耗的高压低温蒸馏工艺相比，基于沸石的吸附分离提供了一种低能耗的替代方法。本综述简要概述了使用沸石或沸石基吸附剂进行 C2H4、C2H2 和 C2H6 吸附分离的最新进展。报告首先探讨了这些化合物的工业意义以及相关的分离难题。随后，它系统地研究了在此类分离过程中利用具有不同阳离子种类的各类沸石的情况。然后，考虑到阳离子-π相互作用、π-络合以及 C2H4、C2H2 和 C2H6 分子的立体分离等原理，探讨不同的沸石结构如何影响吸附和分离能力。此外，报告还讨论了提高沸石和沸石基吸附剂分离性能的方法，包括结构设计、改性和离子交换过程。最后，报告总结了当前的研究趋势和未来方向，强调了沸石材料在 C2H4、C2H2 和 C2H6 分离领域的潜在应用价值，并提出了进一步研究的建议。

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来源期刊

Frontiers of Chemical Science and Engineering ENGINEERING, CHEMICAL-

CiteScore

7.60

自引率

6.70%

发文量

868

审稿时长

1 months

期刊介绍： Frontiers of Chemical Science and Engineering presents the latest developments in chemical science and engineering, emphasizing emerging and multidisciplinary fields and international trends in research and development. The journal promotes communication and exchange between scientists all over the world. The contents include original reviews, research papers and short communications. Coverage includes catalysis and reaction engineering, clean energy, functional material, nanotechnology and nanoscience, biomaterials and biotechnology, particle technology and multiphase processing, separation science and technology, sustainable technologies and green processing.