{"title":"A refinery in a thin film","authors":"Peter M. Budd","doi":"10.1126/science.ady1446","DOIUrl":null,"url":null,"abstract":"<div >Many chemicals, pharmaceuticals, and petrochemicals must be isolated from a mixture of various molecules. Traditional separation processes such as distillation not only require a great deal of energy but also generate large amounts of greenhouse gases (<i>1</i>). An attractive alternative is reverse osmosis that filters liquid solutions through a semipermeable, thin membrane by applying pressure. This method has been broadly used to separate water from salts. However, it is a challenge to create membranes that can isolate molecules from a complex hydrocarbon mixture such as crude oil. On page 839 of this issue, Lee <i>et al</i>. (<i>2</i>) report the fabrication of a reverse osmosis membrane that can separate molecules from industrially relevant organic solvents. This could potentially replace energy-intensive distillation processes in industry.</div>","PeriodicalId":21678,"journal":{"name":"Science","volume":"388 6749","pages":""},"PeriodicalIF":44.7000,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science","FirstCategoryId":"103","ListUrlMain":"https://www.science.org/doi/10.1126/science.ady1446","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Many chemicals, pharmaceuticals, and petrochemicals must be isolated from a mixture of various molecules. Traditional separation processes such as distillation not only require a great deal of energy but also generate large amounts of greenhouse gases (1). An attractive alternative is reverse osmosis that filters liquid solutions through a semipermeable, thin membrane by applying pressure. This method has been broadly used to separate water from salts. However, it is a challenge to create membranes that can isolate molecules from a complex hydrocarbon mixture such as crude oil. On page 839 of this issue, Lee et al. (2) report the fabrication of a reverse osmosis membrane that can separate molecules from industrially relevant organic solvents. This could potentially replace energy-intensive distillation processes in industry.
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