Danbury, CT, United States

Fuel Cell Energy, Inc

www.fce.com
Danbury, CT, United States
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A high efficiency fuel cell system includes a topping fuel cell assembly that includes a topping cathode portion and a topping anode portion, as well as a bottoming fuel cell assembly that includes a bottoming cathode portion and a bottoming anode portion. The assembly also includes a flue gas generating device configured to provide flue gas to the topping cathode portion and/or the bottoming cathode portion, and an oxidizer assembly configured to (i) oxidize anode exhaust output from the bottoming anode portion with air and/or oxygen to generate carbon dioxide-containing exhaust and (ii) generate waste heat for heating the flue gas before the flue gas is provided to the topping cathode portion and/or the bottoming cathode portion. A separation assembly is configured to receive the carbon dioxide-containing exhaust from the oxidizer assembly and to separate carbon dioxide from the carbon dioxide-containing exhaust.


A method of fabricating a fuel cell component for use with or as part of a fuel cell in a fuel cell stack, the method comprising: providing a fuel cell component, providing a deposition assembly for depositing loading material particles onto the fuel cell component, and actuating the deposition assembly to cause the deposition assembly to deposit said loading material particles onto said fuel cell component.


Patent
Fuel Cell Energy, Inc | Date: 2015-09-09

A fuel cell system includes a fuel cell assembly configured to generate a direct current (DC) signal. The fuel cell system also includes one or more inverters coupled to the fuel cell assembly by way of one or more first bus lines. The fuel cell system also includes a variable frequency drive (VFD) coupled to an output of the one or more inverters and configured to receive AC power from the one or more inverters. The VFD is configured to convert the AC power to DC power and to provide the DC power to at least one auxiliary component during a normal operating condition. The fuel cell system further includes one or more second bus lines configured to receive the DC signal via the one or more first bus lines and to provide the DC signal to the VFD to power the at least one auxiliary component during a low voltage ride through condition.


A fuel cell system includes at least one high temperature fuel cell stack having an anode side and a cathode side and configured to generate electrical power; and a gas oxidizer/high level heat recovery assembly including: an oxidizer configured to oxidize exhaust output from the at least one high temperature fuel cell stack and/or a gas derived from the exhaust, and to generate high level heat, and a high level heat recovery system configured to recover the high level heat generated in the oxidizer.


Patent
Fuel Cell Energy, Inc | Date: 2016-02-29

An assembly includes (a) an anode-side sub-assembly including: a plate member having first and second opposing surfaces compatible with fuel and oxidant gases, respectively, the plate member having first and second opposing end segments, and third and fourth opposing end segments; an anode current collector abutting the first surface of the plate member; and first and second anode wet seal members releasably secured to the plate member so as to form first and second pockets on the first surface of the plate member and (b) a cathode-side subassembly comprising: first and second cathode wet seal members configured to form third and fourth pockets on the second surface of the plate member and to be releasably positioned adjacent said third and fourth opposing end segments; and a cathode current collector cooperating with the first and second cathode wet seal members.


Patent
Fuel Cell Energy, Inc | Date: 2016-06-03

A fuel cell matrix for use in a molten carbonate fuel cell comprising a support material and an additive material formed into a porous body, and an electrolyte material disposed in pores of the porous body, wherein the additive material is in a shape of a flake and has an average thickness of less than 1 m.


Patent
Fuel Cell Energy, Inc | Date: 2016-02-29

A method of forming a bipolar separator assembly for use in a fuel cell assembly includes a step of forming an anode-side sub-assembly, which comprises sub-steps of: providing an anode current collector, providing a plate member, first and second opposing end segments and third and fourth opposing end segments, positioning said plate member so that said anode current collector abuts the first surface of the plate member, providing first and second anode wet seal members, and releasably securing the first and second anode wet seal members to the plate member; a step of forming a cathode-side sub-assembly, which comprises sub-steps of: providing a cathode current collector; providing first and second cathode wet seal members; and releasably securing the first and second cathode wet seal members to the cathode current collector; and a step of assembling the cathode-side sub-assembly with the anode-side sub-assembly.


A high efficiency fuel cell system adapted to receive flue gas from a flue gas generating device and to capture carbon dioxide from the flue gas, the high efficiency fuel cell system comprising a topping fuel cell assembly comprising a topping cathode portion and a topping anode portion, a bottoming fuel cell assembly comprising a bottoming cathode portion and a bottoming anode portion, wherein the bottoming anode portion receives anode exhaust output from the topping anode portion, and a separation assembly configured to receive carbon dioxide-containing exhaust and to separate carbon dioxide from the carbon dioxide-containing exhaust, wherein the carbon dioxide-containing exhaust is one of anode exhaust output from the bottoming anode portion and a gas derived from the anode exhaust output from the bottoming anode portion, and wherein at least one of the topping cathode portion and the bottoming cathode portion receives at least a portion of the flue gas output from the flue gas generating device.


Patent
Fuel Cell Energy, Inc | Date: 2015-11-12

A mixer/eductor assembly for use with a fuel cell stack having an anode-side and a cathode-side, said mixer/eductor assembly mixing and at least partially combusting anode exhaust gas output from the anode-side and an oxidant supply gas, said mixer/eductor assembly comprising: a first area receiving and mixing a first portion of the anode exhaust gas and a first portion of the oxidant supply gas to form a first mixture, the first area being configured so as to initiate a combustion reaction in the first mixture; a second area coupled with the first area, the second area receiving to and mixing a second portion of the anode exhaust gas and a second portion of the oxidant supply gas to form a second mixture, wherein: the first mixture has a predetermined oxidant to fuel ratio smaller than the oxidant to fuel ratio of the second mixture; and the first area provides an ignition source to promote continuous combustion of the second mixture in the second area.


A high temperature electrolyzer assembly comprising at least one electrolyzer fuel cell including an anode and a cathode separated by an electrolyte matrix, and a power supply for applying a reverse voltage to the at least one electrolyzer fuel cell, wherein a gas feed comprising steam and one or more of CO2 and hydrocarbon fuel is fed to the anode of the at least one electrolyzer fuel cell, and wherein, when the power supply applies the reverse voltage to the at least one electrolyzer fuel cell, hydrogen-containing gas is generated by an electrolysis reaction in the anode of the at least one electrolyzer fuel cell and carbon dioxide is separated from the hydrogen-containing gas so that the at least one electrolyzer fuel cell outputs the hydrogen-containing gas and separately outputs an oxidant gas comprising carbon dioxide and oxygen.

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