共 36 条
PdCu membrane integration and lifetime in the production of hydrogen from methane
被引:13
作者:
Acha, E.
[1
]
Requies, J.
[1
]
Barrio, V. L.
[1
]
Cambra, J. F.
[1
]
Gueemez, M. B.
[1
]
Arias, P. L.
[1
]
van Delft, Y.
[2
]
机构:
[1] Univ Basque Country, UPV EHU, Chem Engn & Environm Dept, Bilbao 48013, Spain
[2] ECN, Energy Res Ctr Netherlands, Petten, Netherlands
关键词:
Hydrogen;
PdCu membrane;
Process integration;
Mixture gas;
STEAM REFORMING REACTION;
PERMEATION;
PALLADIUM;
SEPARATION;
MIXTURES;
PRESSURE;
REACTORS;
CARBON;
PD/AG;
GAS;
D O I:
10.1016/j.ijhydene.2012.11.010
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070305 [高分子化学与物理];
摘要:
PdCu membranes prepared by sequential electroless plating were integrated into a hydrogen production and purification process. Hydrogen was produced from methane through catalytic partial oxidation and wet catalytic partial oxidation with Ni-based catalysts. Membrane permeance was measured with thermal cycles in an inert and hydrogen atmosphere at 673 and 773 K. Permeability was 1.98.10(-3) mol/(smPa(0.5)) at 673 K and 2.62.10(-3) mol/(smPa(0.5) at 773 K. The optimum sweep gas flow required in the membrane module when operating with hydrogen-containing mixtures was selected. Peak hydrogen recovery was obtained using 15-20% of the feed to the module as sweep gas flow. Membranes were then placed downstream of the hydrogen production reactor. The CO and H2O percentages fed to the membrane module did not have a major impact on membrane behavior. Around 60-67% of the hydrogen fed to the membrane module was separated, regardless of its composition. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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页码:7659 / 7666
页数:8
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