NOVELTY - The fluid recycling apparatus useful in a fuel cell system e.g. molten carbonate fuel cells, comprises a bar-shaped porous member (11a) with first and second ends, first and second electrodes (13a, 13b) coupled with the first and second ends of the porous member respectively, a power supplier (14) for applying a voltage between the first and second electrodes, a gas-liquid separator (15) between the first and second ends of the porous member, a heat exchanger coupled to the first and second ends of the porous member, and a mixing tank coupled to the second end of the porous member.    USE - The fluid recycling apparatus is useful in a fuel cell system (claimed) such as molten carbonate fuel cells, solid oxide fuel cells, phosphoric acid fuel cells, alkaline fuel cells polymer electrolyte membrane fuel cell, proton exchange membrane fuel cells and direct methanol fuel cells.    ADVANTAGE - The fluid recycling apparatus has improved recycling rate of the desired liquid and a simple structure thus electroosmotically transferring the recycled liquid without shaking and rotating the apparatus.    DETAILED DESCRIPTION - The fluid recycling apparatus useful in a fuel cell system e.g. molten carbonate fuel cells, comprises a bar-shaped porous member (11a) with first and second ends, first and second electrodes (13a, 13b) coupled with the first and second ends of the porous member respectively, a power supplier (14) for applying a voltage between the first and second electrodes, a gas-liquid separator (15) between the first and second ends of the porous member, a heat exchanger coupled to the first and second ends of the porous member, and a mixing tank coupled to the second end of the porous member. The porous member is adapted to move a liquid from the first end to the second end of the porous member and to discharge a gas under the voltage applied by the power supplier. When the gas and liquid are injected near the first end of the porous member, the liquid is discharged through the second end of the porous member and the gas is discharged through the gas-liquid separator. The porous member has a flexed shape with a bend or a serpentine shape. The porous member comprises polymers, silica, silicon, quartz and/or ceramics. The heat exchanger is adapted to remove heat energy from the gas and the liquid. The mixing tank is adapted to store water from the second end of porous member. The porous member comprises first and second grooves at the first end and the second end of the porous member respectively, where a first pipe is coupled to the first groove and the second pipe is coupled to the second groove. An INDEPENDENT CLAIM is included for a fuel cell system.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a fluid recycling apparatus.    Porous member (11a)    First electrode (13a)    Second electrode (13b)    Power supplier (14)    Gas-liquid separator. (15)