Abstract: A fuel cell module comprises: at least one cell stack including a plurality of single fuel cells supplied with a fuel gas and an oxidizing gas to generate power; a sealable housing accommodating the at least one cell stack and forming a power generation chamber inside the housing; a pressure vessel accommodating the housing; and an oxidizing gas supply pipe for supplying the oxidizing gas to the cell stack. At least one pressure equalizing opening is formed in the housing to allow communication between inside and outside of the housing. The at least one pressure equalizing opening includes only one pressure equalizing opening, or a plurality of pressure equalizing openings in which a distance between a pressure equalizing opening in the highest position and a pressure equalizing opening in the lowest position is within 0.1H, where H is a height of the housing.

Abstract: A fuel cell system includes: a fuel cell including a fuel electrode and an air electrode; a fuel electrode fuel line configured to supply fuel gas to the fuel electrode; a polluted exhaust line configured to supply polluted exhaust containing contaminants discharged from a facility to the air electrode; and an air electrode fuel line configured to supply fuel gas to the air electrode.

Abstract: A fuel cell power generation system includes: a fuel cell; at least one compressor disposed on an oxidant supply line for supplying an oxidizing gas to the fuel cell; a first motor configured to drive a first compressor among the at least one compressor; and at least one power converter disposed between the first motor and a power grid, and capable of adjusting a torque of the first motor.

Abstract: A fuel cell power generation system is provided with: at least one fuel cell module each of which includes a fuel cell having a fuel-side electrode, an electrolyte, and an oxygen-side electrode; at least one fuel supply line for supplying a fuel gas to the fuel-side electrode included in the at least one fuel cell module; at least one oxidizing gas supply line for supplying an oxidizing gas to the oxygen-side electrode included in the at least one fuel cell module; and a most downstream exhaust fuel gas line through which an exhaust fuel gas discharged from a most downstream module that is disposed most downstream in a flow of the fuel gas among the at least one fuel cell module flows. The most downstream exhaust fuel gas line is configured to supply the exhaust fuel gas to the oxygen-side electrode included in any of the fuel cell modules.

Abstract: A carbon dioxide recovery system for collecting carbon dioxide from an exhaust gas generated in a facility including a combustion device includes: a first exhaust gas passage through which the exhaust gas containing carbon dioxide flows; a fuel cell including an anode, a cathode disposed on the first exhaust gas passage so that the exhaust gas from the first exhaust gas passage is supplied to the cathode, and an electrolyte transferring, from the cathode to the anode, a carbonate ion derived from carbon dioxide contained in the exhaust gas from the first exhaust gas passage; and a second exhaust gas passage diverging from the first exhaust gas passage upstream of the cathode so as to bypass the cathode. A part of the exhaust gas is introduced to the second exhaust gas passage.

Abstract: A plant includes a fuel supply line for supplying high-pressure fuel gas; and at least one expander disposed in the fuel supply line and configured to extract power from the high-pressure fuel gas by expanding the high-pressure fuel gas.

Abstract: A pressurized air supply system includes a turbocharger including a turbine and a compressor, a recuperator for heat exchange between discharged air from the compressor and flue gas exhausted from the turbine, a start-up heater for heating the air, that includes at least either of start-up air or pressurized air from the compressor, which is supplied to discharged air line between the compressor outlet and the recuperator, and a catalytic combustor for supplying, to the turbine, combustion gas which is generated by combustion of fuel with the flowing air heated by the start-up heater.

Abstract: This fuel cell cartridge includes a plurality of cell stacks including a plurality of cells for forming a solid oxide fuel cell. A cell stack group including the plurality of cell stacks includes an inner cell stack group arranged in an inner region of a cell arrangement region and an outer cell stack group arranged in an outer region. The inner cell stack group and the outer cell stack group are connected in series and a current density of the outer cell stack group is configured to be higher than a current density of the inner cell stack group.

Abstract: A fuel cell power generation system includes a first fuel cell and a second fuel cell generating power using a second fuel gas exhausted from the first fuel cell. A regulating valve is used for regulating a supply amount of an oxidant gas to be supplied to the second fuel cell in such a manner that a temperature at the second fuel cell becomes a reference value.

Abstract: A fuel cell module comprises: at least one cell stack including a plurality of single fuel cells supplied with a fuel gas and an oxidizing gas to generate power; a sealable housing accommodating the at least one cell stack and forming a power generation chamber inside the housing; a pressure vessel accommodating the housing; and an oxidizing gas supply pipe for supplying the oxidizing gas to the cell stack. At least one pressure equalizing opening is formed in the housing to allow communication between inside and outside of the housing. The at least one pressure equalizing opening includes only one pressure equalizing opening, or a plurality of pressure equalizing openings in which a distance between a pressure equalizing opening in the highest position and a pressure equalizing opening in the lowest position is within 0.1H, where H is a height of the housing.

Abstract: A fuel cell module comprises: a plurality of single fuel cells each of which includes an anode, an electrolyte, and a cathode; a fuel gas supply pipe for supplying a fuel gas to the anode; an oxidant supply pipe for supplying an oxidized gas to the cathode of the plurality of single fuel cells, the oxidant supply pipe including a first line and a plurality of second lines each of which branches from a branch point at a downstream end of the first line and is connected to one or more single fuel cells; and at least one heating fuel gas supply pipe connected to the second line downstream of the branch point.

Abstract: A carbon dioxide recovery system for collecting carbon dioxide from an exhaust gas generated in a facility including a combustion device includes: a first exhaust gas passage through which the exhaust gas containing carbon dioxide flows; a fuel cell including an anode, a cathode disposed on the first exhaust gas passage so that the exhaust gas from the first exhaust gas passage is supplied to the cathode, and an electrolyte transferring, from the cathode to the anode, a carbonate ion derived from carbon dioxide contained in the exhaust gas from the first exhaust gas passage; and a second exhaust gas passage diverging from the first exhaust gas passage upstream of the cathode so as to bypass the cathode. A part of the exhaust gas is introduced to the second exhaust gas passage.

Abstract: A plant includes a fuel supply line for supplying high-pressure fuel gas; and at least one expander disposed in the fuel supply line and configured to extract power from the high-pressure fuel gas by expanding the high-pressure fuel gas.

Abstract: Provided is a fuel cell capable of reducing the size thereof by reducing the installation space. The fuel cell includs a plurality of cell tubes, a lower tube plate fixing one end portion of the plurality of cell tubes, a gas flow path portion communicatively connected to an electric power generating chamber through the lower tube plate, a fuel discharge header and an air supply passage provided in the gas flow path portion, in which the fuel discharge header is communicatively connected to an interior of the cell tubes on one surface side and is adjacent to the air supply passage on the other surface and a side surface with a metal member interposed therebetween.

Abstract: The present invention provides a fuel cell module capable of properly supporting many cell stacks. A plurality of thin plate holes (21-1 to 21-n), through which a plurality of cell stacks (5-1 to 5-n) respectively penetrate, are formed in a tube plate (2) supporting the plurality of cell stacks (5-1 to 5-n). The tube plate (2) is formed of a plurality of thin plate portions (22-1 to 22-n) forming the plurality of thin plate holes (21-1 to 21-n) and a thick plate portion (23) disposed surrounding the plurality of thin plate portions (22-1 to 22-n) and having a larger plate thickness than the plurality of thin plate portions (22-1 to 22-n). Such a tube plate (2) is less likely to deform compared with other tube plates having a generally uniform plate thickness.

Abstract: The power generation system includes a fuel cell that generates electric power using a fuel gas, a gas turbine including an air compressor, a combustor, and a turbine, an exhaust fuel line that introduces an exhaust fuel gas discharged from the fuel cell into the combustor, a branch exhaust fuel line branching off midway from the exhaust fuel line, a switching unit that sends the exhaust fuel gas to one of the branch exhaust fuel line and the combustor, and a heating portion that heats the exhaust fuel line at a downstream side of the switching unit.

Abstract: An interconnector material having a high degree of densification, a unit cell for a solid oxide fuel cell that has a high degree of gas tightness at the contact interface between the electrolyte and the interconnector, and a solid oxide fuel cell having superior reliability are provided in an inexpensive manner. A material for a solid oxide fuel cell interconnector, comprising (SrxE1-x)TiO3 (wherein x satisfies 0.01?x?0.5, and E represents one or more elements selected from the group consisting of La, Pr, Nd, Sm and Gd) and Al2O3, wherein the Al2O3 content relative to the (SrxE1-x)TiO3 is not less than 2 mol % and not more than 10 mol %.

Abstract: Provided is a fuel cell capable of reducing the size thereof by reducing the installation space. The fuel cell includs a plurality of cell tubes, a lower tube plate fixing one end portion of the plurality of cell tubes, a gas flow path portion communicatively connected to an electric power generating chamber through the lower tube plate, a fuel discharge header and an air supply passage provided in the gas flow path portion, in which the fuel discharge header is communicatively connected to an interior of the cell tubes on one surface side and is adjacent to the air supply passage on the other surface and a side surface with a metal member interposed therebetween.

Abstract: An interconnector material having a high degree of densification, a unit cell for a solid oxide fuel cell that has a high degree of gas tightness at the contact interface between the electrolyte and the interconnector, and a solid oxide fuel cell having superior reliability are provided in an inexpensive manner. A material for a solid oxide fuel cell interconnector, comprising (SrxE1-x)TiO3 (wherein x satisfies 0.01?x?0.5, and E represents one or more elements selected from the group consisting of La, Pr, Nd, Sm and Gd) and Al2O3, wherein the Al2O3 content relative to the (SrxE1-x)TiO3 is not less than 2 mol % and not more than 10 mol %.