Gas separation performance of supported carbon molecular sieve membranes based on soluble polybenzimidazole

doi:10.1016/j.memsci.2017.03.022

	Gas separation performance of supported carbon molecular sieve membranes based on soluble polybenzimidazole
	Jiao, Wenmei 1,2; Ban, Yujie 2; Shi, Zixing 3; Jiang, Xuesong 3; Li, Yanshuo 2; Yang, Weishen 2
刊名	JOURNAL OF MEMBRANE SCIENCE
	2017-07-01
卷号	533 页码:1-10
关键词	Polybenzimidazole Carbon Molecular Sieve Membrane Gas Separation
DOI	10.1016/j.memsci.2017.03.022
英文摘要	A poly [2, 2'-(p-oxydiphenylene)-5, 5'-bibenzimidazole] (OPBI) was employed to pyrolyze under an inert Ar atmosphere to produce alumina-supported carbon molecular sieve membranes (CMSMs) for CO2/CH4 gas separation. Pyrolysis temperature was also varied from 550 degrees C to 750 degrees C to tailor the carbon microstructure and then optimize the separation performances of CMSMs. A structure-performance relationship was established that high pyrolysis temperature can promote the generation of a compact and ordered graphite carbon structure and further give rise to a remarkable combinations of separation factor and gas permeability of CMSMs. Much effort has been made to reduce the thickness of CMSMs via lowering the concentration of polymer precursors or increasing the dip-coating withdraw speed. The optimal thinner CMSMs separately prepared from diluted OPBI polymer solution and increased dip-coating withdraw speed revealed a remarkable improvement of CO2 permeance, transcending the Robeson's upper bound of polymer membranes and of great potential in natural gas purifications.
语种	英语
WOS记录号	WOS:000401122400001
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/152286]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 3.Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Jiao, Wenmei,Ban, Yujie,Shi, Zixing,et al. Gas separation performance of supported carbon molecular sieve membranes based on soluble polybenzimidazole[J]. JOURNAL OF MEMBRANE SCIENCE,2017,533:1-10.
APA	Jiao, Wenmei,Ban, Yujie,Shi, Zixing,Jiang, Xuesong,Li, Yanshuo,&Yang, Weishen.(2017).Gas separation performance of supported carbon molecular sieve membranes based on soluble polybenzimidazole.JOURNAL OF MEMBRANE SCIENCE,533,1-10.
MLA	Jiao, Wenmei,et al."Gas separation performance of supported carbon molecular sieve membranes based on soluble polybenzimidazole".JOURNAL OF MEMBRANE SCIENCE 533(2017):1-10.