Evaluation of Pd composite membrane for pre-combustion CO2 capture

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	Evaluation of Pd composite membrane for pre-combustion CO2 capture
	A.; Bao Goldbach, F.; Qi, C. C.; Bao, C.; Zhao, L. F.; Hao, C. Y.; Jiang, C. H.; Xu, H. Y.
	2015
发表期刊	International Journal of Greenhouse Gas Control
ISSN	1750-5836
卷号	33 页码:69-76
摘要	Carbon capture with hydrogen-selective Pd membranes can be realized as highly integrated process and CO2 can be separated at high pressure without employing environmentally harmful sorption agents. This study investigates the technical viability of using ultrathin Pd/ceramic composite membranes with innovative ceramic-to-metal connections under conditions that are practically interesting for natural gas-fired power stations, i.e. high feed and permeate pressures and high H-2 recovery at elevated temperature. The 90% CO2 capture target was well exceeded during a 150 day test in water gas-shifted reformate at 673 K. After system stabilization 98% carbon were held back by the membrane while 98% H-2 were separated at nominally 99.5% H-2 purity. Special attention has been paid to long-term operation effects on the 2-4 mu m thick Pd layer. These include the development of a striking, cavernous Pd morphology which increases mechanical stability of the composite membrane, a somewhat reduced but steady Hy permeability, and the disappearance of most membrane defects. The latter is attributed to carbon deposits as exit flow analyses point to CO2 reduction preserving effectively membrane selectivity. Altogether, carbon capture with supported Pd membranes projects as feasible from a technological vantage point. (C) 2014 Elsevier Ltd. All rights reserved.
部门归属	[goldbach, andreas ; bao, feng ; qi, chenchen ; bao, chun ; zhao, lingfang ; xu, hengyong] chinese acad sci, dalian inst chem phys, dalian natl lab clean energy, dalian 116023, peoples r china. [hao, chuanyong ; jiang, chunhai] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; xu, hy (reprint author), chinese acad sci, dalian inst chem phys, dalian natl lab clean energy, 457 zhongshan rd, dalian 116023, peoples r china. ; goldbach@dicp.ac.cn ; qicc@dicp.ac.cn ; zhaolf@dicp.ac.cn ; cyhao@imr.ac.cn ; chjiang@imr.ac.cn ; xuhy@dicp.ac.cn
关键词	Carbon Capture Natural Gas Combined Cycle Hydrogen Separation Membrane Selectivity Carbon Formation Gas Separation Hydrogen-production Natural-gas Palladium Emissions Reactors Plants
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73802
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	A.,Bao Goldbach, F.,Qi, C. C.,et al. Evaluation of Pd composite membrane for pre-combustion CO2 capture[J]. International Journal of Greenhouse Gas Control,2015,33:69-76.
APA	A..,Bao Goldbach, F..,Qi, C. C..,Bao, C..,Zhao, L. F..,...&Xu, H. Y..(2015).Evaluation of Pd composite membrane for pre-combustion CO2 capture.International Journal of Greenhouse Gas Control,33,69-76.
MLA	A.,et al."Evaluation of Pd composite membrane for pre-combustion CO2 capture".International Journal of Greenhouse Gas Control 33(2015):69-76.