使用基于带有三烷氧基硅基的聚三环壬烯的薄膜分离含二氧化碳的气体混合物

IF 0.6 4区化学 Q4 CHEMISTRY, APPLIED

Russian Journal of Applied Chemistry Pub Date : 2024-03-12 DOI:10.1134/S1070427223050117

D. A. Alentiev, D. I. Petukhov, M. V. Bermeshev

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引用次数: 0

摘要

摘要研究了通过乙烯基加成聚合法制备的、基于三(正烷氧基)硅基、含有不同长度(1 至 4 个碳原子)烷基片段取代基的聚三环壬烯膜的 CO2/CH4 和 CO2/N2 混合物的分离情况。这些混合物的分离选择性接近相应的理想选择性。气体传输特性略微取决于气体进料流的压力。带有甲基基团悬垂取代基的聚合物的分离效果最好。这种聚合物的参数位于罗伯逊图中 CO2/CH4 气体混合物的 2015 上限之上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Separation of Gas Mixtures Containing Carbon Dioxide Using Membranes Based on Polytricyclononenes with Trialkoxysilyl Groups

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Separation of Gas Mixtures Containing Carbon Dioxide Using Membranes Based on Polytricyclononenes with Trialkoxysilyl Groups

Separation of CO₂/CH₄ and CO₂/N₂ mixtures containing from 20 to 50% CO₂ on membranes based on polytricyclononenes with tri(n-alkoxy)silyl groups containing substituents with alkyl fragments of different lengths (one to four carbon atoms), prepared by vinyl-addition polymerization, was studied. The separation selectivity for these mixtures is close to the corresponding ideal selectivity. The gas transport characteristics slightly depend on the pressure of the gas feed flow. The best results are obtained for the polymer with methyl groups in pendant substituents. The parameters of this polymer are located above the 2015 upper bound in the Robeson diagram for CO₂/CH₄ gas mixtures.

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来源期刊

Russian Journal of Applied Chemistry 化学-应用化学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

2-4 weeks

期刊介绍： Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.