用无毒溶剂制备聚醚酰亚胺膜以分离甲烷中的氢。

Q1 Chemistry
Yousef Alqaheem, Abdulaziz Alomair, Abdulwahab Alhendi, Sharifah Alkandari, Nusrat Tanoli, Nourah Alnajdi, Andrés Quesada-Peréz
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引用次数: 23

摘要

由于n-甲基吡咯烷酮(NMP)的溶解力强,沸点高,因此通常采用n-甲基吡咯烷酮等溶剂制备聚合物膜。然而,这种溶剂既昂贵又有毒,还存在环境问题。在膜制备过程中引入了l -乳酸甲酯、乳酸乙酯、碳酸丙烯酯、邻乙酰柠檬酸三丁酯、柠檬酸三丁酯、磷酸三乙酯和γ-丁内酯(GBL)等无毒溶剂。除GBL外,其余溶剂均不能溶解聚醚酰亚胺。对两种膜的气体分离性能进行了评价,结果表明,两种膜的氢-甲烷选择性基本相同,但NMP膜的氢透性更好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Preparation of polyetherimide membrane from non-toxic solvents for the separation of hydrogen from methane.

Preparation of polyetherimide membrane from non-toxic solvents for the separation of hydrogen from methane.

Preparation of polyetherimide membrane from non-toxic solvents for the separation of hydrogen from methane.

Preparation of polyetherimide membrane from non-toxic solvents for the separation of hydrogen from methane.

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.

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来源期刊
Chemistry Central Journal
Chemistry Central Journal 化学-化学综合
CiteScore
4.40
自引率
0.00%
发文量
0
审稿时长
3.5 months
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. Sections: -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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