REACTOR
A reactor includes a reaction vessel having an inlet for to-be-reformed gas and an outlet for reformed gas, a pair of electrodes for plasma generation, disposed in the internal space of the reactor vessel so as to face each other, a power source for applying a voltage to the pair of electrodes, and a catalyst for promoting the reforming reaction of 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, the catalyst is loaded on the partition walls of the honeycomb electrode, and the ratio of the maximum outer diameter d 1 of each cell-opening end face of the honeycomb electrode to the length L 1 of the honeycomb electrode in the cell-extending direction is in a range of 0.50 to 1.2.
1 . 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,
the catalyst is loaded on the partition walls of the honeycomb electrode, and
the honeycomb electrode has a cell density of 4 to 192 cells/cm 2 and the ratio of the maximum outer diameter of each cell-opening end face of the honeycomb electrode to the length of the honeycomb electrode in the cell-extending direction is in a range of 0.50 to 1.2.
2 . A reactor according to claim 1 , wherein the honeycomb electrode is made of the conductive ceramics including silicon carbide.
3 . A reactor according to claim 1 , wherein the honeycomb electrode has a density of 0.5 to 4.0 g/cm 3 .
4 . A reactor according to claim 1 , wherein the honeycomb electrode has a thermal conductivity of 10 to 300 W/mk.
5 . A reactor according to claim 1 , wherein the power source is a high-voltage pulse power source using a static induction type thyristor.