Fuel-cell power generating system

A portable power generating system comprising:

• a portable pressure canister containing butane fuel gas;
• a reforming device for preparing reformed gas containing hydrogen gas by using a portion of the butane gas contained in said pressure canister as a fuel gas and another portion of the butane gas to be reacted with water;
• a fuel cell for generating electric power by using the hydrogen gas in the reformed gas and oxygen gas in air;
• a device for regulating an amount of the butane gas discharged from said pressure canister;
• and
• a device for controlling a flow rate of the butane gas, installed in feed lines for supplying the butane gas from said pressure canister to said reforming device,
• wherein said device for controlling the amount of the butane gas discharged from said butane gas pressure canister comprises a heater capable of heating the pressure canister comprising an electric heater, a heater operable by waste heat from said fuel cell or a heater operable by waste heat from said reforming device.