| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a steam reforming device in which various problems in a conventional steam reformer are solved and cost reduction is promoted. <P>SOLUTION: The steam reforming device for a fuel cell includes a cylindrical steam reformer which is equipped with a plurality of cylindrical bodies consisting of a first cylindrical body, a second cylindrical body, and a third cylindrical body with sequentially larger diameters coaxially arranged leaving spacings in between, and a burner in the center part of the circumferential direction of the first cylindrical body in which the upper part gap out of the gaps partitioned by the first cylindrical body and the second cylindrical body in the circumferential direction is used as a pre-heating layer of a mixture flow of raw material fuel and raw material water, and equipped with a reforming catalyst layer in the lower part gap, and a cylindrical steam reformer in which a reforming gas flow passage is constituted that is reversed at the lower end of the second cylindrical body in the gap partitioned in the circumferential direction by the second cylindrical body and the third cylindrical body, a CO denatured catalyst layer at the upper part in the cylindrical body, a CO removing catalyst layer at the lower part, an air supply part between the CO denatured catalyst layer and the CO removing catalyst layer, and a cylindrical reforming gas treatment device arranged with raw material water preheating tubes to supply the water to the preheating layer of the steam reformer in the outer periphery where the CO removing catalyst layer is positioned out of the cylindrical bodies are included. <P>COPYRIGHT: (C)2010,JPO&INPIT |
