Design and operation of a compact microchannel 5 kWel,net methanol steam reformer with novel Pt/In2O3 catalyst for fuel cell applications

被引:41
作者
Kolb, Gunther [1 ]
Keller, Steffen [1 ]
Tiemann, David [1 ]
Schelhaas, Karl-Peter [1 ]
Schuerer, Jochen [1 ]
Wiborg, Ole [1 ]
机构
[1] Inst Mikrotech Mainz GmbH, D-55129 Mainz, Germany
关键词
Microreactor; Fuel processing; Methanol; Catalyst; SELECTIVE OXIDATION REACTOR; PLATE-FIN REFORMER; HYDROGEN-PRODUCTION; PROCESSOR; MICROREACTOR; PERFORMANCE; COMBUSTION; GENERATION; SYSTEMS; PD/ZNO;
D O I
10.1016/j.cej.2012.06.141
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A methanol reformer was designed, built and tested, which allows hydrogen production for high temperature PEM fuel cells for mobile applications applying micro-structured plate heat-exchanger technology and a novel, highly active catalyst formulation for oxidative steam reforming of methanol at temperatures exceeding 300 degrees C. It is one of the first micro-structured methanol reformers with integrated anode off-gas combustion, which works in the kW scale. The reformer was operated under conditions of start-up, steady state and under dynamic conditions, in connection with a 1 kW high temperature PEM fuel cell and finally integrated into a fuel processor, which contained an external evaporator and a heat-exchanger for super-heating the reformer feed. The thermal power of the hydrogen produced by the reformer amounted to 20 kW(thermal), which corresponds to 6.5 kW(el) of a fuel cell at 40% efficiency and 80% hydrogen utilization. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:388 / 402
页数:15
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