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Title: Harnessing filler materials for enhancing biogas separation membranes
Authors: Chuah, Chong Yang
Goh, Kunli
Yang, Yanqin
Gong, Heqing
Li, Wen
Karahan, H. Enis
Guiver, Michael D.
Wang, Rong
Bae, Tae-Hyun
Keywords: Engineering::Chemical engineering::Biochemical engineering
Issue Date: 2018
Source: Chuah, C. Y., Goh, K., Yang, Y., Gong, H., Li, W., Karahan, H. E., ... Bae, T.-H. (2018). Harnessing filler materials for enhancing biogas separation membranes. Chemical Reviews, 118(18), 8655-8769. doi: 10.1021/acs.chemrev.8b00091
Journal: Chemical reviews
Abstract: Biogas is an increasingly attractive renewable resource, envisioned to secure future energy demands and help curb global climate change. To capitalize on this resource, membrane processes and state-of-the-art membranes must efficiently recover methane (CH4) from biogas by separating carbon dioxide (CO2). Composite (a.k.a. mixed-matrix) membranes, prepared from common polymers and rationally selected/engineered fillers, are highly promising for this application. This review comprehensively examines filler materials that are capable of enhancing the CO2/CH4 separation performance of polymeric membranes. Specifically, we highlight novel synthetic strategies for engineering filler materials to develop high-performance composite membranes. Besides, as the matrix components (polymers) of composite membranes largely dictate the overall gas separation performances, we introduce a new empirical metric, the "Filler Enhancement Index" ( Findex), to aid researchers in assessing the effectiveness of the fillers from a big data perspective. The Findex systematically decouples the effect of polymer matrices and critically evaluates both conventional and emerging fillers to map out a future direction for next-generation (bio)gas separation membranes. Beyond biogas separation, this review is of relevance to a broader community with interests in composite membranes for other gas separation processes, as well as water treatment applications.
ISSN: 1520-6890
DOI: 10.1021/acs.chemrev.8b00091
Schools: School of Chemical and Biomedical Engineering 
School of Civil and Environmental Engineering 
Rights: © 2018 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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