(US5302470-A)      A fuel cell power generation system desulphurises raw fuel and steam reforms (4) it to give fuel gas consisting mainly of hydrogen, then feeds this and an oxidant (9) to a fuel cell (6). The desulphuriser (2b) contains an agent with copper and zinc components and reduces the sulphur content of the fuel to 5 ppb, pref. 0.1 ppb, or less.    The desulphuriser may comprise a single Cu/Zn reactor, or this may be combined with a hydrogenation or adsorption desulphurisation reactor. The raw fuel is pref. methane, ethane, propane, butane, natural gas, naphtha, kerosine, gas oil, liq. propane and/or towns gas.    ADVANTAGE -   Prevents deterioration of steam reforming catalyst so that steady long-term operation can be ensured.    (JP2765950-B2)      A fuel cell power generation system uses fuel gas which contains hydrogen as a main component and is obtd. by desulphurising starting fuels such as naphtha, LPG, town gas, etc., and subjecting the resulting gas to steam reformation and a method of producing the fuel gas. The starting fuels are desulphurised by use of a copper-zinc desulphurising agent.    USE/ADVANTAGE -   The starting fuels are highly desulphurised to prevent degradation of the steam reforming catalyst. As a result, the fuel cell can be operated stably for a long period of time, and since S/C (the molar number of steam per mol of carbon of hydrocarbons in the starting fuel) can be reduced during the steam reformation, the hydrogen content in the fuel gas and hence power generation efficiency can be imoroved.    (JP2828661-B2)      A fuel cell power generation system uses fuel gas which contains hydrogen as a main component and is obtd. by desulphurising starting fuels such as naphtha, LPG, town gas, etc., and subjecting the resulting gas to steam reformation and a method of producing the fuel gas. The starting fuels are desulphurised by use of a copper-zinc desulphurising agent.    USE/ADVANTAGE -   The starting fuels are highly desulphurised to prevent degradation of the steam reforming catalyst. As a result, the fuel cell can be operated stably for a long period of time, and since S/C (the molar number of steam per mol of carbon of hydrocarbons in the starting fuel) can be reduced during the steam reformation, the hydrogen content in the fuel gas and hence power generation efficiency can be imoroved.    (JP11139803-A)      A fuel cell power generation system uses fuel gas which contains hydrogen as a main component and is obtd. by desulphurising starting fuels such as naphtha, LPG, town gas, etc., and subjecting the resulting gas to steam reformation and a method of producing the fuel gas. The starting fuels are desulphurised by use of a copper-zinc desulphurising agent.    USE/ADVANTAGE -   The starting fuels are highly desulphurised to prevent degradation of the steam reforming catalyst. As a result, the fuel cell can be operated stably for a long period of time, and since S/C (the molar number of steam per mol of carbon of hydrocarbons in the starting fuel) can be reduced during the steam reformation, the hydrogen content in the fuel gas and hence power generation efficiency can be imoroved.    (JP2993507-B2)      A fuel cell power generation system uses fuel gas which contains hydrogen as a main component and is obtd. by desulphurising starting fuels such as naphtha, LPG, town gas, etc., and subjecting the resulting gas to steam reformation and a method of producing the fuel gas. The starting fuels are desulphurised by use of a copper-zinc desulphurising agent.    USE/ADVANTAGE -   The starting fuels are highly desulphurised to prevent degradation of the steam reforming catalyst. As a result, the fuel cell can be operated stably for a long period of time, and since S/C (the molar number of steam per mol of carbon of hydrocarbons in the starting fuel) can be reduced during the steam reformation, the hydrogen content in the fuel gas and hence power generation efficiency can be imoroved.    (JP3050850-B2)      A fuel cell power generation system uses fuel gas which contains hydrogen as a main component and is obtd. by desulphurising starting fuels such as naphtha, LPG, town gas, etc., and subjecting the resulting gas to steam reformation and a method of producing the fuel gas. The starting fuels are desulphurised by use of a copper-zinc desulphurising agent.    USE/ADVANTAGE -   The starting fuels are highly desulphurised to prevent degradation of the steam reforming catalyst. As a result, the fuel cell can be operated stably for a long period of time, and since S/C (the molar number of steam per mol of carbon of hydrocarbons in the starting fuel) can be reduced during the steam reformation, the hydrogen content in the fuel gas and hence power generation efficiency can be imoroved.