Patent ID: 7838161

Claim:
A reformer comprising: a reforming reactor adapted to reform a hydrogen containing fuel into reformed gas having abundant hydrogen with a catalyst capable of performing an auto thermal reforming (ATR) catalyst reaction and an steam reforming (SR) catalyst reaction; a heat source contacting one side of the reforming reactor and for providing the reforming reactor with heat; an air feeder adapted to feed the reforming reactor with air by an air flow control unit; a CO remover connected to and communicating with the reforming reactor, adapted to remove carbon monoxide, and comprising a water gas shift unit adapted to perform a water gas shift catalyst reaction and a preferential oxidation unit adapted to perform a preferential oxidation catalyst reaction; a channel shifting unit comprising a first valve between the reforming reactor and the preferential oxidation unit, and a second valve between the reforming reactor and the water gas shift unit; and a controller programmed to open the first valve and close the second valve to allow a reformed gas to flow to the preferential oxidation unit and bypass the water gas shift unit during operation of the SR catalyst reaction.