Co-shift device

A CO-shift device comprising:

• a main body having therein a space in which a CO-shift catalyst is accommodated, the space being divided into an inner space accommodating said CO-shift catalyst and an outer space surrounding the inner space and accommodating said CO-shift catalyst;
• an inlet portion formed at an end portion of the inner space, the inlet portion being adapted to be supplied with a reformed gas such that the reformed gas can flow through the inner space;
• an outlet portion formed at an end portion of the outer space;
• and
• redirecting means provided between the inner space and the outer space for reversing a flow of a reformed gas flowing through the inner space, wherein said CO-shift catalyst is accommodated in said outer space adjacent said redirecting means.

A CO-shift method comprising the steps of:

• introducing a reformed gas through an inlet of an inner space of a main body of a shift reactor, a CO-shift catalyst being accommodated in the inner space;
• reversing a flow direction of the reformed gas in a redirecting portion after the reformed gas has flowed through the inner space;
• flowing the reversed reformed gas from the inner space of the main body through an outer space of the main body which surrounds the inner space, wherein a CO-shift catalyst is accommodated in the outer space;
• and
• discharging the reformed gas from an outlet portion of the outer space.