{"title":"Metal–organic frameworks for one-step ethylene purification from multi-component hydrocarbon mixtures","authors":"","doi":"10.1016/j.ccr.2024.216291","DOIUrl":null,"url":null,"abstract":"<div><div>Ethylene (C<sub>2</sub>H<sub>4</sub>) is extremely important as one of the world's largest chemical commodity. A variety of light hydrocarbon gases (C<sub>1</sub>-C<sub>3</sub>) and carbon dioxide (CO<sub>2</sub>) coexist with C<sub>2</sub>H<sub>4</sub> in the production, which need to be removed to produce polymer grade C<sub>2</sub>H<sub>4</sub>. Conventional thermal-driven distillation separation processes consume large amounts of energy, which has prompted the creation of energy-efficient adsorption separation techniques that utilize physical adsorbents. Metal-organic frameworks (MOFs) have great potential in the separation and purification of ethylene due to their vast surface area, large porosity and highly customizable pores. The purification of C<sub>2</sub>H<sub>4</sub> from multi-component mixtures is more related to the real hydrocarbon industry than the extensively studied separation of ideal binary mixtures, but more challenging for the design of desirable MOFs. To date, there is a noticeable absence of a comprehensive discussion of advancements in the separation of ethylene from multi-component mixtures using MOF adsorbents. This review offers a detailed overview of the ongoing developments in the creation of MOFs for multi-component C<sub>2</sub>H<sub>4</sub> purification applications, which include the purification of C<sub>2</sub>H<sub>4</sub> from ternary, quaternary, quinary, senary, septenary and octary hydrocarbon mixtures. Ternary-component separations include C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> separation and C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub>/C<sub>2</sub>H<sub>4</sub> separation while quaternar-component separations include C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/CO<sub>2</sub>/C<sub>2</sub>H<sub>6</sub> separation and C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub>/C<sub>3</sub>H<sub>4</sub>/1-C<sub>4</sub>H<sub>6</sub> separation. Particularly, the merits and innovations of MOFs in the single-step purification of C<sub>2</sub>H<sub>4</sub> from complex mixtures will be examined. This includes insights into the mechanisms of separation and the overarching tactics devised to enhance the performance of the separation process. Moreover, this review will outline the possible hurdles faced when shifting MOFs from the domain of scholarly inquiry to practical industrial application, and to encapsulate the outlook for this swiftly progressing area of study.</div></div>","PeriodicalId":289,"journal":{"name":"Coordination Chemistry Reviews","volume":null,"pages":null},"PeriodicalIF":20.3000,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coordination Chemistry Reviews","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010854524006374","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Ethylene (C2H4) is extremely important as one of the world's largest chemical commodity. A variety of light hydrocarbon gases (C1-C3) and carbon dioxide (CO2) coexist with C2H4 in the production, which need to be removed to produce polymer grade C2H4. Conventional thermal-driven distillation separation processes consume large amounts of energy, which has prompted the creation of energy-efficient adsorption separation techniques that utilize physical adsorbents. Metal-organic frameworks (MOFs) have great potential in the separation and purification of ethylene due to their vast surface area, large porosity and highly customizable pores. The purification of C2H4 from multi-component mixtures is more related to the real hydrocarbon industry than the extensively studied separation of ideal binary mixtures, but more challenging for the design of desirable MOFs. To date, there is a noticeable absence of a comprehensive discussion of advancements in the separation of ethylene from multi-component mixtures using MOF adsorbents. This review offers a detailed overview of the ongoing developments in the creation of MOFs for multi-component C2H4 purification applications, which include the purification of C2H4 from ternary, quaternary, quinary, senary, septenary and octary hydrocarbon mixtures. Ternary-component separations include C2H2/C2H4/C2H6 separation and C2H2/CO2/C2H4 separation while quaternar-component separations include C2H2/C2H4/CO2/C2H6 separation and C2H2/C2H4/C3H4/1-C4H6 separation. Particularly, the merits and innovations of MOFs in the single-step purification of C2H4 from complex mixtures will be examined. This includes insights into the mechanisms of separation and the overarching tactics devised to enhance the performance of the separation process. Moreover, this review will outline the possible hurdles faced when shifting MOFs from the domain of scholarly inquiry to practical industrial application, and to encapsulate the outlook for this swiftly progressing area of study.
期刊介绍:
Coordination Chemistry Reviews offers rapid publication of review articles on current and significant topics in coordination chemistry, encompassing organometallic, supramolecular, theoretical, and bioinorganic chemistry. It also covers catalysis, materials chemistry, and metal-organic frameworks from a coordination chemistry perspective. Reviews summarize recent developments or discuss specific techniques, welcoming contributions from both established and emerging researchers.
The journal releases special issues on timely subjects, including those featuring contributions from specific regions or conferences. Occasional full-length book articles are also featured. Additionally, special volumes cover annual reviews of main group chemistry, transition metal group chemistry, and organometallic chemistry. These comprehensive reviews are vital resources for those engaged in coordination chemistry, further establishing Coordination Chemistry Reviews as a hub for insightful surveys in inorganic and physical inorganic chemistry.