Carbon molecular sieve membranes fabricated at low carbonization temperatures with novel polymeric acid porogen for light gas separation

Hongfang Guo; Jing Wei; Yulei Ma; Zikang Qin; Xiaohua Ma; Roman Selyanchyn; Bangda Wang; Xuezhong He; Bo Tang; Lin Yang; Lu Yao; Wenju Jiang; Yuanfa Zhuang; Dengguo Yin; Xue Li; Zhongde Dai

doi:10.1016/j.seppur.2023.123883

Carbon molecular sieve membranes fabricated at low carbonization temperatures with novel polymeric acid porogen for light gas separation

Hongfang Guo, Jing Wei, Yulei Ma, Zikang Qin, Xiaohua Ma, Roman Selyanchyn, Bangda Wang, Xuezhong He, Bo Tang, Lin Yang, Lu Yao, Wenju Jiang, Yuanfa Zhuang, Dengguo Yin, Xue Li, Zhongde Dai^*

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Carbon molecular sieve (CMS) membranes is promising for small gas molecule (e.g., H2 and He) separation from big molecules (e.g., CH4, N2 and CO2). However, conventional CMS membranes need high carbonization temperatures (e.g., >800 oC) to ensure both high gas permeability and selectivity. In the present work, the introduction of a novel pore generator (porogen) into the Troger’s base polymer precursor, allowed the considerable reduction of carbonization temperature from ∼800 oC to ∼400 oC. Under optimized conditions, the obtained CMS membranes presented a H2 permeability of 675.0 Barrer with a H2/CH4 and H2/N2 selectivity of 678.3 and 297.1, He permeability of 400.1 Barrer with He/CH4 and He/N2 selectivity of 405.6 and 176.6, respectively, which is much higher than the Upper Bound 2019. In addition, it is found that the porogen used in this work could also work in different materials, including Pebax and polyimide, which makes this method promising in CMS membranes fabrication.

Original language	English
Journal	Separation and Purification Technology
DOIs	https://doi.org/10.1016/j.seppur.2023.123883
State	E-pub ahead of print - 19 Apr 2023

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Guo, H., Wei, J., Ma, Y., Qin, Z., Ma, X., Selyanchyn, R., Wang, B., He, X., Tang, B., Yang, L., Yao, L., Jiang, W., Zhuang, Y., Yin, D., Li, X., & Dai, Z. (2023). Carbon molecular sieve membranes fabricated at low carbonization temperatures with novel polymeric acid porogen for light gas separation. Separation and Purification Technology. Advance online publication. https://doi.org/10.1016/j.seppur.2023.123883

@article{befc5e15fea747a9a30d865ba194a10a,

title = "Carbon molecular sieve membranes fabricated at low carbonization temperatures with novel polymeric acid porogen for light gas separation",

abstract = "Carbon molecular sieve (CMS) membranes is promising for small gas molecule (e.g., H2 and He) separation from big molecules (e.g., CH4, N2 and CO2). However, conventional CMS membranes need high carbonization temperatures (e.g., >800 oC) to ensure both high gas permeability and selectivity. In the present work, the introduction of a novel pore generator (porogen) into the Troger{\textquoteright}s base polymer precursor, allowed the considerable reduction of carbonization temperature from ∼800 oC to ∼400 oC. Under optimized conditions, the obtained CMS membranes presented a H2 permeability of 675.0 Barrer with a H2/CH4 and H2/N2 selectivity of 678.3 and 297.1, He permeability of 400.1 Barrer with He/CH4 and He/N2 selectivity of 405.6 and 176.6, respectively, which is much higher than the Upper Bound 2019. In addition, it is found that the porogen used in this work could also work in different materials, including Pebax and polyimide, which makes this method promising in CMS membranes fabrication.",

author = "Hongfang Guo and Jing Wei and Yulei Ma and Zikang Qin and Xiaohua Ma and Roman Selyanchyn and Bangda Wang and Xuezhong He and Bo Tang and Lin Yang and Lu Yao and Wenju Jiang and Yuanfa Zhuang and Dengguo Yin and Xue Li and Zhongde Dai",

year = "2023",

month = apr,

day = "19",

doi = "10.1016/j.seppur.2023.123883",

language = "英语",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Elsevier",

}

TY - JOUR

T1 - Carbon molecular sieve membranes fabricated at low carbonization temperatures with novel polymeric acid porogen for light gas separation

AU - Guo, Hongfang

AU - Wei, Jing

AU - Ma, Yulei

AU - Qin, Zikang

AU - Ma, Xiaohua

AU - Selyanchyn, Roman

AU - Wang, Bangda

AU - He, Xuezhong

AU - Tang, Bo

AU - Yang, Lin

AU - Yao, Lu

AU - Jiang, Wenju

AU - Zhuang, Yuanfa

AU - Yin, Dengguo

AU - Li, Xue

AU - Dai, Zhongde

PY - 2023/4/19

Y1 - 2023/4/19

N2 - Carbon molecular sieve (CMS) membranes is promising for small gas molecule (e.g., H2 and He) separation from big molecules (e.g., CH4, N2 and CO2). However, conventional CMS membranes need high carbonization temperatures (e.g., >800 oC) to ensure both high gas permeability and selectivity. In the present work, the introduction of a novel pore generator (porogen) into the Troger’s base polymer precursor, allowed the considerable reduction of carbonization temperature from ∼800 oC to ∼400 oC. Under optimized conditions, the obtained CMS membranes presented a H2 permeability of 675.0 Barrer with a H2/CH4 and H2/N2 selectivity of 678.3 and 297.1, He permeability of 400.1 Barrer with He/CH4 and He/N2 selectivity of 405.6 and 176.6, respectively, which is much higher than the Upper Bound 2019. In addition, it is found that the porogen used in this work could also work in different materials, including Pebax and polyimide, which makes this method promising in CMS membranes fabrication.

AB - Carbon molecular sieve (CMS) membranes is promising for small gas molecule (e.g., H2 and He) separation from big molecules (e.g., CH4, N2 and CO2). However, conventional CMS membranes need high carbonization temperatures (e.g., >800 oC) to ensure both high gas permeability and selectivity. In the present work, the introduction of a novel pore generator (porogen) into the Troger’s base polymer precursor, allowed the considerable reduction of carbonization temperature from ∼800 oC to ∼400 oC. Under optimized conditions, the obtained CMS membranes presented a H2 permeability of 675.0 Barrer with a H2/CH4 and H2/N2 selectivity of 678.3 and 297.1, He permeability of 400.1 Barrer with He/CH4 and He/N2 selectivity of 405.6 and 176.6, respectively, which is much higher than the Upper Bound 2019. In addition, it is found that the porogen used in this work could also work in different materials, including Pebax and polyimide, which makes this method promising in CMS membranes fabrication.

U2 - 10.1016/j.seppur.2023.123883

DO - 10.1016/j.seppur.2023.123883

M3 - 文章

SN - 1383-5866

JO - Separation and Purification Technology

JF - Separation and Purification Technology

ER -

Carbon molecular sieve membranes fabricated at low carbonization temperatures with novel polymeric acid porogen for light gas separation

Abstract

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