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多层复合中空膜在混合气体条件下从CH中分离CO的性能。

Performance of Multilayer Composite Hollow Membrane in Separation of CO from CH in Mixed Gas Conditions.

作者信息

Zakariya Shahidah, Yeong Yin Fong, Jusoh Norwahyu, Tan Lian See

机构信息

Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia.

CO2 Research Centre (CO2RES), R&D Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia.

出版信息

Polymers (Basel). 2022 Apr 5;14(7):1480. doi: 10.3390/polym14071480.

DOI:10.3390/polym14071480
PMID:35406352
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9002636/
Abstract

Composite membranes comprising NH-MIL-125(Ti)/PEBAX coated on PDMS/PSf were prepared in this work, and their gas separation performance for high CO feed gas was investigated under various operating circumstances, such as pressure and CO concentration, in mixed gas conditions. The functional groups and morphology of the prepared membranes were characterized by Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM). CO concentration and feed gas pressure were demonstrated to have a considerable impact on the CO and CH permeance, as well as the CO/CH mixed gas selectivity of the resultant membrane. As CO concentration was raised from 14.5 vol % to 70 vol %, a trade-off between permeance and selectivity was found, as CO permeance increased by 136% and CO/CH selectivity reduced by 42.17%. The membrane produced in this work exhibited pressure durability up to 9 bar and adequate gas separation performance at feed gas conditions consisting of high CO content.

摘要

本工作制备了涂覆在聚二甲基硅氧烷/聚砜（PDMS/PSf）上的包含NH-MIL-125（Ti）/聚醚嵌段酰胺（PEBAX）的复合膜，并在混合气体条件下，研究了它们在各种操作条件（如压力和CO浓度）下对高CO原料气的气体分离性能。通过傅里叶变换红外光谱（FTIR）和场发射扫描电子显微镜（FESEM）对制备的膜的官能团和形态进行了表征。结果表明，CO浓度和原料气压力对所得膜的CO和CH渗透率以及CO/CH混合气体选择性有相当大的影响。当CO浓度从14.5体积%提高到70体积%时，发现渗透率和选择性之间存在权衡，因为CO渗透率增加了136%，CO/CH选择性降低了42.17%。本工作制备的膜在高达9巴的压力下具有耐久性，并且在高CO含量的原料气条件下具有足够的气体分离性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/4b600b251407/polymers-14-01480-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/2fc5b426f51e/polymers-14-01480-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/8cafa248af7e/polymers-14-01480-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/a755ca622c44/polymers-14-01480-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/9047a9024cc5/polymers-14-01480-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/6f45286f9af8/polymers-14-01480-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/6c51d8dce3ff/polymers-14-01480-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/4b600b251407/polymers-14-01480-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/2fc5b426f51e/polymers-14-01480-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/8cafa248af7e/polymers-14-01480-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/a755ca622c44/polymers-14-01480-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/9047a9024cc5/polymers-14-01480-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/6f45286f9af8/polymers-14-01480-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/6c51d8dce3ff/polymers-14-01480-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32c2/9002636/4b600b251407/polymers-14-01480-g007.jpg

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