Patent ID: 8357341

Claim:
A fuel reforming system comprising, in the following order: a fuel reformer for reforming a hydrocarbon or an alcohol into a mixture gas containing hydrogen and carbon monoxide through a reforming reaction, and a carbon monoxide removal reactor comprising a casing having, a catalyst accommodating portion accommodating a carbon monoxide removal catalyst for removing carbon monoxide present in the mixture gas containing hydrogen and carbon monoxide, and a mixture gas communicating passage for introducing the mixture gas to the catalyst accommodating portion and discharging the mixture gas therefrom, wherein, portions or entireties of inner wall faces of said catalyst accommodating portion and said mixture gas communicating passage upstream thereof of the carbon monoxide removal reactor are formed of a non-iron material, at a pipe extending from the fuel reformer to the carbon monoxide removal reactor, a portion or entirety of an inner wall face of the pipe contacting the mixture gas containing hydrogen and carbon monoxide flowing in the system is formed of a non-iron material, and portions or entireties of the inner wall faces of said catalyst accommodating portion and said mixture as communicating passage upstream thereof are coated with at least one kind of coating material selected from the group consisting of alumina, silica, and titania.