A fuel cell device may include a fuel cell module; a condensate water recovery flow path which may recover water contained in an exhaust gas discharged from the fuel cell module as condensate water; a condensate water recovery device which may store the condensate water; and a reforming water supply flow path which may supply the condensate water to a reformer. The condensate water recovery device of the fuel cell device may include a first ion exchange container which may contain an ion exchange resin; and a first storage container which may store the condensate water. The first ion exchange container may be disposed inside the first storage container with a space from the first storage container, and may be attachable to and detachable from the first storage container.

A gas and liquid separator includes a first separating portion configured to separate a liquid droplet from a first exhaust gas discharged from a negative electrode of a fuel cell, a first container accommodating the first separating portion, a first storage reservoir storing water flowing down from the first separating portion, a second container provided at a lower side of the first storage reservoir, a second storage reservoir provided at a lower portion of the second container, and a valve apparatus including a valve discharging water stored in the first storage reservoir, wherein a second exhaust gas discharged from a positive electrode flows in the second container, and water discharged from the first storage reservoir is stored in the second storage reservoir.

A fuel cell system includes a fuel cell having a cathode and an anode configured to receive a portion of a hhydrocarbon feed and to output an anode exhaust stream comprising carbon dioxide, hydrogen, and water; and an electrolyzer cell having a cathode and an anode. The anode of the electrolyzer cell is configured to receive a first portion of the anode exhaust stream and another portion of the hydrocarbon feed, and to generate a hydrogen stream.

A fuel cell system includes a fuel cell stack, a fuel inlet conduit configured to provide a fuel to a fuel inlet of the fuel cell stack, an electrochemical pump separator containing an electrolyte, a cathode, and a carbon monoxide tolerant anode, a fuel exhaust conduit that operatively connects a fuel exhaust outlet of the fuel cell stack to an anode inlet of the electrochemical pump separator, and a product conduit which operatively connects a cathode outlet of the electrochemical pump separator to the fuel inlet conduit.

Methods and systems are provided for a cooling system for a vehicle having a fuel cell system. The cooling system comprises a first cooling circuit configured to cool a first set of vehicle components and a second cooling circuit configured to cool a second set of vehicle components. The fuel cell system is distributed between the first set of vehicle components and the second set of vehicle components.

To provide a fuel cell system capable of discharging a fuel gas in an emergency while suppressing complication and an increase in cost of the system. The fuel cell system includes a fuel cell, a fuel gas tank, a fuel gas supply channel, a fuel gas supply unit, a main stop valve that controls opening and closing of the fuel gas tank, a fuel gas discharge channel, an exhaust drain valve that controls discharge of the fuel gas discharged from the fuel cell to an outside of the system, and a control unit. The control unit controls the exhaust drain valve, the fuel gas supply unit, and the main stop valve to open so as to discharge the fuel gas from the fuel gas tank when receiving an emission command of the fuel gas.

An exhaust moisture removal system for an electric generation system including: a sorbent wheel; an interchanger; a hydrogen evaporator including an exhaust portion; and an exhaust outflow stream passageway configured to convey an exhaust from a hydrogen fuel cell of the electric generation system through a first pass and then through a second pass, the second pass being located downstream of the first pass, wherein the first pass of the exhaust outflow stream passageway passes through the sorbent wheel, then through the interchanger, and then through the hydrogen evaporator, and wherein the second pass of the exhaust outflow stream passageway passes through the hydrogen evaporator, then through the interchanger, and then through the sorbent wheel.

A fuel cell system includes: a stack generating electric power using reformed gas; a fuel processing device supplying reformed gas; a first gas passage connecting the stack and the fuel processing device, and carrying the reformed gas; a second gas passage connecting the stack and the fuel processing device and carrying an anode off gas (AOG) discharged from the stack; a buffer tank storing the AOG; a first buffer tank passage connecting the buffer tank and the second gas passage; a second buffer tank passage carrying the AOG stored in the buffer tank; a gas mixer connected to the second buffer tank passage and supplying the AOG stored in the buffer tank to the stack; and a controller controlling the gas mixer to supply the anode off gas stored in the buffer tank to the stack so as to preheat the stack or remove air in the stack.

The invention relates to a media management plate (1) for a fuel cell assembly (5), a fuel cell system (10) comprising the media management plate and a fuel cell assembly, and a method of operating a fuel cell system (10) comprising a fuel cell assembly (5) and the media management plate (1). All lines for supplying and discharging the fuel cell media and all devices necessary for treating the fuel cell media are integrated in the media management plate (1). The media management plate (1) can be heated by means of coolant and is functional both when oriented vertically and horizontally.

Fuel cell systems configured for efficient byproduct recovery and reuse are disclosed herein. In one embodiment, a fuel cell system includes a reformer configured to reform a fuel containing methane (CH.sub.4) with steam to produce a reformed fuel having methane (CH.sub.4), carbon monoxide (CO), and hydrogen (H.sub.2). The fuel cell system also includes a fuel cell configured to perform an electrochemical reaction between a first portion of the reformed fuel and oxygen (O.sub.2) to produce electricity and an exhaust having carbon dioxide (CO.sub.2), water (H.sub.2O), and a second portion of the reformed fuel. The fuel cell system further includes an oxygen enricher configured to generate an oxygen enriched gas and a combustion chamber configured to combust the second portion of the reformed fuel with the oxygen enriched gas.