| 摘要 |
The present invention relates to a reforming reaction system for a fuel cell comprising: a reforming reactor which includes a combustion reaction part, a reforming reaction part, and a water gas shift part; and a fuel cell stack which receives reformate gas from the reforming reactor and generates electricity. The combustion reaction part and the reforming reaction part are disposed within the reforming reactor, and the water gas shift part is installed to surround the combustion reaction part and the reforming reaction part in the form of a concentric conduit outside the same. The water gas shift part and the fuel cell stack are installed adjacent to each other while a preheating space for a heat exchange is interposed therebetween. The combustion reaction part and the reforming reaction part installed within the reforming reactor are divided by a tube-wall, which is installed in a vertical direction, of a reforming reaction tube. A combustion catalyst and a reforming catalyst face a wall surface and are coated on an outer wall and an inner wall of the reforming reaction tube respectively, and thus shorten the heat transfer passages from a combustion catalyst layer to a reforming catalyst layer, and further improve heat transfer efficiency. Further, loss of pressure in the catalyst layer is reduced, and thus a diameter of the reforming reaction tube is reduced, thereby enabling a large number of the reforming reaction tube to be installed within the same volume. Therefore, a facility cost and a operating cost can be reduced since more reformate gas can be treated within the same volume of the reforming reactor. |
