气候变化领域集成服务门户(CCPortal): Redefining the Robeson upper bounds for CO2/CH4 and CO2/N2 separations using a series of ultrapermeable benzotriptycene-based polymers of intrinsic microporosity

CCPortal

DOI	10.1039/c9ee01384a
	Redefining the Robeson upper bounds for CO2/CH4 and CO2/N2 separations using a series of ultrapermeable benzotriptycene-based polymers of intrinsic microporosity
	Comesaña-Gándara B.; Chen J.; Bezzu C.G.; Carta M.; Rose I.; Ferrari M.-C.; Esposito E.; Fuoco A.; Jansen J.C.; McKeown N.B.
发表日期	2019
ISSN	17545692
起始页码	2733
结束页码	2740
卷号	12 期号:9
英文摘要	Membranes composed of Polymers of Intrinsic Microporosity (PIMs) have the potential for energy efficient industrial gas separations. Here we report the synthesis and gas permeability data of a series of ultrapermeable PIMs, of two-dimensional chain conformation and based on benzotriptycene structural units, that demonstrate remarkable ideal selectivity for most gas pairs of importance. In particular, the CO2 ultrapermeability and high selectivity for CO2 over CH4, of key importance for the upgrading of natural gas and biogas, and for CO2 over N2, of importance for cost-effective carbon capture from power plants, exceed the performance of the current state-of-the-art polymers. All of the gas permeability data from this series of benzotriptycene-based PIMs are placed well above the current 2008 Robeson upper bounds for CO2/CH4 and CO2/N2. Indeed, the data for some of these polymers fall into a linear correlation on the benchmark Robeson plots [i.e. log(P CO2/P CH4) versus log P CO2 and log(P CO2/P N2) versus log P CO2], which are parallel to, but significantly above, that of the 2008 CO2/CH4 and CO2/N2 upper bounds, allowing their revision. The redefinition of these upper bounds sets new aspirational targets for polymer chemists to aim for and will result in more attractive parametric estimates of energy and cost efficiencies for carbon capture and natural/bio gas upgrading using state-of-the-art CO2 separation membranes. © 2019 The Royal Society of Chemistry.
英文关键词	Carbon capture; Carbon dioxide; Cost benefit analysis; Cost effectiveness; Energy efficiency; Gas permeability; Gas plants; Gases; Microporosity; Natural gasoline plants; Natural polymers; Separation; Energy and cost; Energy efficient; High selectivity; Ideal selectivities; Industrial gas separation; Linear correlation; Polymers of intrinsic microporosities; State of the art; Gas permeable membranes; carbon dioxide; chemical compound; methane; natural gas; nitrogen; polymer; power plant; separation
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189832
作者单位	EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom; Department of Chemistry, Swansea University, College of Science, Grove Building, Singleton Park, Swansea, SA2 8PP, United Kingdom; Institute for Materials and Processes, School of Engineering, University of Edinburgh, Mayfield Road, Edinburgh, EH9 3JL, United Kingdom; Institute on Membrane Technology, ITM-CNR, Via P. Bucci 17/C, Rende (CS), 87036, Italy
推荐引用方式 GB/T 7714	Comesaña-Gándara B.,Chen J.,Bezzu C.G.,et al. Redefining the Robeson upper bounds for CO2/CH4 and CO2/N2 separations using a series of ultrapermeable benzotriptycene-based polymers of intrinsic microporosity[J],2019,12(9).
APA	Comesaña-Gándara B..,Chen J..,Bezzu C.G..,Carta M..,Rose I..,...&McKeown N.B..(2019).Redefining the Robeson upper bounds for CO2/CH4 and CO2/N2 separations using a series of ultrapermeable benzotriptycene-based polymers of intrinsic microporosity.Energy & Environmental Science,12(9).
MLA	Comesaña-Gándara B.,et al."Redefining the Robeson upper bounds for CO2/CH4 and CO2/N2 separations using a series of ultrapermeable benzotriptycene-based polymers of intrinsic microporosity".Energy & Environmental Science 12.9(2019).