Patent ID: 8263011

Claim:
A reactor comprising a reaction vessel having an inlet for a to-be-reformed gas and an outlet for a reformed gas, a pair of electrodes for plasma generation, disposed in an internal space of the reaction vessel so as to face each other, a power source for applying a voltage to the pair of electrodes, and a catalyst for promoting reforming reaction of the to-be-reformed gas, wherein one of the pair of electrodes is a linear electrode, the other of the pair of electrodes is a honeycomb electrode made of a conductive ceramics having a plurality of cells to act as gas passages partitioned by partition walls, and the catalyst is loaded on the partition walls of the honeycomb electrode, the reactor further comprising shielding members protruded from a gas-introducing end face of the honeycomb electrode in a space between the linear electrode and the honeycomb electrode to prevent the to-be-reformed gas passing through a zone other than a plasma-generating zone from flowing into the honeycomb electrode.