Zeolite-Filled Porous Mixed Matrix Membranes for Air Separation

Autor:	Chien-Chieh Hu, Kueir-Rarn Lee, Chien-Chung Shih, Ywu-Jang Fu, Juin-Yih Lai, Shu-Hsien Huang, Jung-Tsai Chen
Rok vydání:	2014
Předmět:	Air separation Chromatography Materials science Annealing (metallurgy) Scanning electron microscope General Chemical Engineering General Chemistry Permeation Industrial and Manufacturing Engineering chemistry.chemical_compound Membrane chemistry Chemical engineering Polysulfone Zeolite Porosity
Zdroj:	Industrial & Engineering Chemistry Research. 53:2781-2789
ISSN:	1520-5045 0888-5885
Popis:	This work introduces the preparation of zeolite-filled porous mixed matrix membranes (MMMs) and discusses their potential use for air separation. Porous polysulfone (PSF) matrix membranes were prepared using the nonsolvent-induced phase separation process. Scanning electron microscope and gas permeation experiments suggested the presence of closed pores in the porous matrix membranes. Furthermore, porous MMMs containing zeolite 4A particles as filler were prepared and characterized. The permeation properties of porous MMMs were highly dependent on the zeolite content. The introduction of zeolite particles distorted the closed pores in the PSF matrix and formed nonselective voids which resulted in very high oxygen flux but low O2/N2 selectivity. The annealing technique for modifying the nonselective pores present in the polymer–zeolite interface is also described in this study. The resulting annealed porous MMMs had the ability to separate O2 from N2 more effectively than traditional dense MMMs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cc32e5e9d82a02149de62a6cc83be0f4 https://doi.org/10.1021/ie403833u Zobrazit plný text záznamu