Reformer, cell stack apparatus, fuel cell module, and fuel cell apparatus

Abstract

A reformer of the present disclosure includes a reformer body having a cylindrical shape that carries out a reforming reaction by a raw fuel gas and water supplied thereto, the reformer body including therein a vaporization portion which generates steam and a reforming portion which reacts the steam generated in the vaporization portion with the raw fuel gas to generate a reformed gas, at least one of a convex portion and a rough portion having a higher degree of surface roughness than that of other portions, being disposed on at least one of an inner circumferential surface and an outer circumferential surface of the reformer body.

Dependencies are inferred from the claim text.