| 摘要 |
PURPOSE: To provide a fuel cell having heat efficiency generally high per unit fuel by incorporating a reformer, which uses a hydrogen separating and transmitting film, into a fuel cell, and generating high-purity hydrogen for fuel, making use of its operation heat. CONSTITUTION: A reformer 3, which has a membrane 4 of a hydrogen separating and transmitting film, is incorporated into a fuel cell 8, and the operation heat of the fuel cell 8 is utilized for the heating of a reformer 3. It is to be desired that the said membrane 3 should be made in such structure that the film of palladium-containing alloy is made on the surface of, for example, an inert porous substance. Reforming material 1 is introduced into the reformer 3 together with the steam 2 generated in a heat exchanger 7, and hydrogen produced in reform reaction is made into high-purity hydrogen on a level of 10ppm or under in CO with the membrane 4 and is supplied to the fuel cell 8, and off gas 9 is used as fuel. At that time, in case that the reform material is hydrocarbon of natural gas or the like, it is to be desired that it should be combined with a fused carbonate type fuel battery high in working temperature, and in case that it is methanol, it is to be desired that it should be combined with a phosphorous fuel cell low in working temperature. |
