ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Development of PCM Reactor for Methane Steam Reforming
Nobuhiro MaruokaTomohiro Akiyama
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JOURNAL FREE ACCESS

2010 Volume 50 Issue 9 Pages 1305-1310

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Abstract

This paper describes the experimental investigation of a new methane steam reformer utilizing waste heat through the latent heat storage material called “phase change material (PCM)”. The intermittently released waste heat such as steelmaking off gas was first converted to a continuous, constant temperature heat source in the form of latent heat of the PCM. Then, the stored heat in the PCM was supplied to methane to induce an endothermic steam-reforming reaction. In the experiments, a laboratory scale reformer in which packed beds of nickel porous catalyst was circumferentially covered by PCM of copper was intermittently heated from outside by a burner and the transient local temperatures were monitored. The results revealed that the PCM temperature was constant in spite of intermittent heating and that hydrogen was generated continuously. The proposed system could possibly produce hydrogen with less CO2 emission than that produced by a conventional hydrogen generator. This could allow the integration of two processes in the steelmaking and hydrogen production industries.

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© 2010 by The Iron and Steel Institute of Japan
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