{"title":"Preparation of polyetherimide membrane from non-toxic solvents for the separation of hydrogen from methane.","authors":"Yousef Alqaheem, Abdulaziz Alomair, Abdulwahab Alhendi, Sharifah Alkandari, Nusrat Tanoli, Nourah Alnajdi, Andrés Quesada-Peréz","doi":"10.1186/s13065-018-0449-7","DOIUrl":null,"url":null,"abstract":"<p><p>Polymeric membranes are usually prepared from solvents like n-methylpyrrolidone (NMP) because of the strong dissolving power and high boiling point. Yet, the solvent is costly, toxic and has environmental issues. In this work, nontoxic solvents such as methyl L-lactate, ethyl lactate, propylene carbonate, tributyl o-acetylcitrate, tributyl citrate, triethyl phosphate, and γ-butyrolactone (GBL) were introduced during membrane preparation. It was found that all the solvents were unable to dissolve polyetherimide except GBL. The membranes made by GBL and NMP were evaluated for gas separation, and they have almost similar hydrogen-to-methane selectivity, but, hydrogen permeance was better in NMP membranes.</p>","PeriodicalId":9842,"journal":{"name":"Chemistry Central Journal","volume":"12 1","pages":"80"},"PeriodicalIF":0.0000,"publicationDate":"2018-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s13065-018-0449-7","citationCount":"23","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemistry Central Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1186/s13065-018-0449-7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Chemistry","Score":null,"Total":0}
引用次数: 23
Abstract
Polymeric membranes are usually prepared from solvents like n-methylpyrrolidone (NMP) because of the strong dissolving power and high boiling point. Yet, the solvent is costly, toxic and has environmental issues. In this work, nontoxic solvents such as methyl L-lactate, ethyl lactate, propylene carbonate, tributyl o-acetylcitrate, tributyl citrate, triethyl phosphate, and γ-butyrolactone (GBL) were introduced during membrane preparation. It was found that all the solvents were unable to dissolve polyetherimide except GBL. The membranes made by GBL and NMP were evaluated for gas separation, and they have almost similar hydrogen-to-methane selectivity, but, hydrogen permeance was better in NMP membranes.
期刊介绍：
BMC Chemistry is an open access, peer reviewed journal that considers all articles in the broad field of chemistry, including research on fundamental concepts, new developments and the application of chemical sciences to broad range of research fields, industry, and other disciplines. It provides an inclusive platform for the dissemination and discussion of chemistry to aid the advancement of all areas of research.
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-Analytical Chemistry
-Organic Chemistry
-Environmental and Energy Chemistry
-Agricultural and Food Chemistry
-Inorganic Chemistry
-Medicinal Chemistry
-Physical Chemistry
-Materials and Macromolecular Chemistry
-Green and Sustainable Chemistry
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