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	Pd-Ag-Au-Ni Membrane Reactor for Methoxymethane Steam Reforming
	Feng, Dongmei ; Wang, Yuanyuan ; Wang, Dezheng ; Wang, Jinfu
	2010-10-12 ; 2010-10-12
关键词	SOLID-ACID CATALYSTS FUEL-CELL FEEDS DIMETHYL ETHER HYDROGEN-PRODUCTION COMPOSITE CATALYSTS METHANOL HYDROLYSIS PERFORMANCE SPINEL GAS Chemistry, Multidisciplinary Engineering, Chemical
中文摘要	The permeability of hydrogen through a Pd-Ag-Au-Ni membrane was determined at temperatures between (473 and 573) K at a hydrogen pressure of between (1.0 and 4.0) 10(5) Pa. Methoxymethane steam reforming (C2H6O + 3H(2)O(g) = 6H(2) + 2CO(2)) with a Pd-Ag-Au-Ni membrane reactor is used to produce hydrogen in proton exchange membrane fuel cells (PEMFCs). This process uses a bifunctional catalyst of (CuO-ZnO-Al2O3-ZrO2 + ZSM-5) in mass fraction ratio of each component of 50 %. The determined methoxymethane conversion, hydrogen yield, and hydrogen recovery flow in a reactor were compared to those in a fixed bed reactor. The operating parameters were pressures of (1.0 to 4.0).10(5) Pa, temperatures of (473 to 573) K, and input mass fraction ratios of H2O-to-C2H6O of (3 to 7) at velocities of between (1180 and 9000) cm(3).g(-1).h(-1). The conversion of C2H6O was higher in the membrane reactor due to the countercurrent removal of hydrogen. In the membrane reactor, the thermal energy needed for the endothermic steam reforming can be provided by the combustion of the exit stream from the membrane reactor. The enthalpy for the reactions indicated coupling, and both reforming and oxidation reactions gave a energy recovery of about 85 %.
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79393]
专题	清华大学
推荐引用方式 GB/T 7714	Feng, Dongmei,Wang, Yuanyuan,Wang, Dezheng,et al. Pd-Ag-Au-Ni Membrane Reactor for Methoxymethane Steam Reforming[J],2010, 2010.
APA	Feng, Dongmei,Wang, Yuanyuan,Wang, Dezheng,&Wang, Jinfu.(2010).Pd-Ag-Au-Ni Membrane Reactor for Methoxymethane Steam Reforming..
MLA	Feng, Dongmei,et al."Pd-Ag-Au-Ni Membrane Reactor for Methoxymethane Steam Reforming".(2010).

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