气候变化领域集成服务门户(CCPortal): Microporous Adsorbent-Based Mixed Matrix Membranes for CO2/N2 Separation

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DOI	10.3390/en17081927
	Microporous Adsorbent-Based Mixed Matrix Membranes for CO2/N2 Separation
	Shervani, Suboohi; Tansug, Lara P.; Tezel, F. Handan
发表日期	2024
EISSN	1996-1073
起始页码	17
结束页码	8
卷号	17 期号:8
英文摘要	As the atmospheric carbon dioxide (CO2) concentration rapidly rises, carbon capture, utilization, and storage (CCUS) is an emerging field for climate change mitigation. Various carbon capture technologies are in development with the help of adsorbents, membranes, solvent-based systems, etc. One of the main challenges in this field is the removal of CO2 from nitrogen (N-2) gas. This paper focuses on mixed matrix membrane technology, for which the CO2/N-2 separation performance is based on differences in gas permeations. Membrane separation and purification technologies are widely studied for carbon capture. Microporous adsorbents such as zeolites and metal organic frameworks (MOFs) for carbon capture have been attracting researchers' attention due to their highly porous structures, high selectivity values, and tunable porosities. Utilizing microporous adsorbents dispersed within a novel, blended polymer matrix, fourteen membranes were prepared with the commercial MOF ZIF-8, zeolite 13X, and kaolin, with methyl cellulose (MC) and polyvinyl alcohol (PVA), which were tested using a single gas permeation setup in this study. The addition of polyallylamine (PAH) as a chemisorbent was also investigated. These membranes were synthesized both with and without a polyacrylonitrile (PAN) support to compare their performances. MC was found to be an ideal polymeric matrix component to develop free-standing MMMs. At 24 degrees C and a relatively low feed pressure of 2.36 atm, a free-standing zeolite-13X-based membrane (MC/PAH/13X/PVA) exhibited the highest N-2/CO2 selectivity of 2.8, with a very high N-2 permeability of 6.9 x 10(7) Barrer. Upon the optimization of active layer thickness and filler weight percentages, this easily fabricated free-standing MMM made of readily available materials is a promising candidate for CO2 purification through nitrogen removal.
英文关键词	carbon capture; mixed matrix membranes; metal organic frameworks; zeolites; free-standing membranes; permeability; selectivity; CO2 removal techniques; global warming challenges
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:001211378800001
来源期刊	ENERGIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302489
作者单位	University of Ottawa
推荐引用方式 GB/T 7714	Shervani, Suboohi,Tansug, Lara P.,Tezel, F. Handan. Microporous Adsorbent-Based Mixed Matrix Membranes for CO2/N2 Separation[J],2024,17(8).
APA	Shervani, Suboohi,Tansug, Lara P.,&Tezel, F. Handan.(2024).Microporous Adsorbent-Based Mixed Matrix Membranes for CO2/N2 Separation.ENERGIES,17(8).
MLA	Shervani, Suboohi,et al."Microporous Adsorbent-Based Mixed Matrix Membranes for CO2/N2 Separation".ENERGIES 17.8(2024).