132 patents
Page 5 of 7
Utility
System and Method for Producing Hydrogen Using High Temperature Fuel Cells
30 Dec 20
A steam methane reformer-integrated fuel cell system includes at least one fuel cell having an anode, a cathode, and an electrolyte matrix separating the anode and the cathode.
Fred C. Jahnke, Matthew Lambrech
Filed: 9 Sep 20
Utility
Low Pressure Carbon Dioxide Removal from the Anode Exhaust of a Fuel Cell
23 Dec 20
A fuel cell system for removing carbon dioxide from anode exhaust gas includes: a fuel cell having an anode configured to output an anode exhaust gas comprising hydrogen, carbon monoxide, carbon dioxide, and water; an anode gas oxidizer; and an absorption system configured to receive the anode exhaust gas, the absorption system including: an absorber column configured to absorb the carbon dioxide from the anode exhaust gas in a solvent and to output a resultant gas comprising hydrogen and a hydrocarbon that is at least partially recycled to the anode; and a stripper column configured to regenerate the solvent and to output a carbon dioxide-rich stream.
Fred C. JAHNKE, Matthew A. LAMBRECH
Filed: 31 Aug 20
Utility
Wet Seal Caulk with Enhanced Chemical Resistance
16 Dec 20
A caulk composition includes: at least one powder component and at least one binder component.
Matthew T. SNIDER, Chao-yi YUH
Filed: 30 Aug 20
Utility
Modular enclosures for fuel cell stacks that allow for individual installation and replacement of a fuel cell stack in the field
7 Dec 20
A fuel cell system includes at least one modular enclosure having a top wall, a bottom wall, and a plurality of side walls that connect the top wall and the bottom wall and close off the modular enclosure on all sides; at least one fuel cell stack disposed within the at least one modular enclosure; at least one piping manifold configured to supply at least one process gas to the at least one fuel cell stack and to receive at least one exhaust process gas from the at least one fuel cell stack; and at least one process gas seal configured to seal the at least one piping manifold.
Michael L. Quatannens, Matthew Lambrech, Fred C. Jahnke
Filed: 27 Apr 17
Utility
Direct current (DC) load levelers
30 Nov 20
A load leveling system includes a fuel cell inverter, a direct current (DC) load bank, and a controller.
George P. Berntsen, Lincoln Vitalis
Filed: 28 Aug 18
Utility
Fuel Cell Module Housing with Field Replaceable Stacks
25 Nov 20
A fuel cell module includes a plurality of fuel cell stacks; a manifold configured to provide process gases to and receive process gases from the plurality of fuel cell stacks; and a module housing enclosing the plurality of fuel cell stacks and the manifold.
Keith DAVIS, Stephen JOLLY, Michael L. QUATANNENS, Matthew LAMBRECH
Filed: 12 Aug 20
Utility
Fuel cell stack inlet flow control
23 Nov 20
A duct for a fuel cell module includes an upper duct hood having an inlet configured to receive reactant gas from a supply duct, the upper duct hood defining a first tapered portion and a second tapered portion.
Michael L. Quatannens, William Snyder, Quan Jin, Robert S. Fournier
Filed: 3 Oct 17
Utility
High efficiency fuel cell system with intermediate CO
16 Nov 20
A high efficiency fuel cell system includes a topping fuel cell assembly including a topping cathode portion and a topping anode portion; a carbon dioxide separation unit that receives at least a portion of an anode exhaust stream output from the topping anode portion and separates the portion of the anode exhaust stream into a carbon dioxide stream and a carbon dioxide depleted stream; and a bottoming fuel cell assembly including a bottoming cathode portion and a bottoming anode portion.
Ramakrishnan Venkataraman, Mohammad Farooque
Filed: 19 Apr 17
Utility
Stable Electrolyte Matrix for Molten Carbonate Fuel Cells
11 Nov 20
A method of making an electrolyte matrix includes: preparing a slurry comprising a support material, a coarsening inhibitor, an electrolyte material, and a solvent; and drying the slurry to form an electrolyte matrix.
Abdelkader HILMI, Arun SURENDRANATH, Chao-Yi YUH, Mohammad FAROOQUE
Filed: 23 Jul 20
Utility
Fuel cell response to electrical grid frequency events
2 Nov 20
A method for addressing electrical grid frequency changes by a fuel cell system includes measuring, by a frequency sensor, a frequency of an electrical grid, determining that the frequency of the electrical grid differs from a normal frequency of the electrical grid by a threshold, determining, based at least in part on the measured frequency, an AC power setpoint bias, applying a magnitude limit, a rate-of-change limit, and a duration limit to the determined AC power setpoint bias to generate a limited power setpoint bias, generating a frequency adjusted power setpoint based on the limited power setpoint bias, and providing the frequency adjusted power setpoint to one or more control modules of the fuel cell system such that the fuel cell system adjusts a power output based on a difference between the measured frequency and the normal frequency.
George P. Berntsen, Ramakrishnan Venkataraman
Filed: 31 May 17
Utility
Low pressure carbon dioxide removal from the anode exhaust of a fuel cell
5 Oct 20
A fuel cell system for removing CO2 from anode exhaust gas includes a fuel cell having an anode that outputs anode exhaust including H2, CO, CO2, and water; a shift reactor that receives a first portion of the anode exhaust and performs a water-gas shift reaction to produce an output stream primarily including H2 and CO2; an anode gas oxidizer (AGO); and an absorption system including an absorber column that absorbs the CO2 from the output stream in a solvent and outputs a resultant gas including H2 and a hydrocarbon that is at least partially recycled to the anode, and a stripper column that regenerates the solvent and outputs a CO2-rich stream.
Fred C. Jahnke, Matthew A. Lambrech
Filed: 30 Aug 18
Utility
Wet seal caulk with enhanced chemical resistance
28 Sep 20
A caulk composition includes at least one powder component and at least one binder component, such that the powder component has a particle size distribution in the range of 95% less than 25 μm and 90% greater than 1 μm.
Matthew T. Snider, Chao-yi Yuh
Filed: 7 Mar 18
Utility
Fuel cell module housing with field replaceable stacks
14 Sep 20
A fuel cell module includes a plurality of fuel cell stacks; a manifold configured to provide process gases to and receive process gases from the plurality of fuel cell stacks; and a module housing enclosing the plurality of fuel cell stacks and the manifold.
Keith Davis, Stephen Jolly, Michael L. Quatannens, Matthew Lambrech
Filed: 20 Apr 17
Utility
Hydrogen Generation Using a Fuel Cell System with an Rep
9 Sep 20
A fuel cell system includes a fuel cell having an anode and a cathode configured to output cathode exhaust.
Fred C. JAHNKE, Matthew Lambrech
Filed: 18 May 20
Utility
Fuel cell system with waste heat recovery for production of high pressure steam
31 Aug 20
A fuel cell system for generating electrical power and high level heat comprising at least one high temperature fuel cell stack having an anode side and a cathode side and adapted to generate electrical power, and a gas oxidizer/high level heat recovery assembly comprising an oxidizer adapted to oxidize one or more of exhaust output from the at least one high temperature fuel cell stack and a gas derived from the exhaust, and to generate high level heat, and a high level heat recovery system adapted to recover the high level heat generated in the oxidizer.
Fred C. Jahnke, Matthew Lambrech, Pinakin Patel
Filed: 20 Nov 14
Utility
Pressure balancing of anode and cathode in a fuel cell system
31 Aug 20
A fuel cell system includes a fuel cell having an anode configured to receive anode feed gas and output anode exhaust, and a cathode configured to receive cathode feed gas and output cathode exhaust.
Hossein Ghezel-Ayagh, James B. Walzak
Filed: 16 May 18
Utility
Stable electrolyte matrix for molten carbonate fuel cells
24 Aug 20
An electrolyte matrix for use with molten carbonate fuel cells having an enhanced stability and lifetime is provided.
Abdelkader Hilmi, Arun Surendranath, Chao-Yi Yuh, Mohammad Farooque
Filed: 3 Nov 16
Utility
Ultra High Efficiency Fuel Cell Power Generation System
5 Aug 20
A fuel cell system includes a fuel cell having a cathode and an anode configured to receive a portion of a hydrocarbon feed and to output an anode exhaust stream comprising carbon dioxide, hydrogen, and water; and an electrolyzer cell having a cathode and an anode.
Fred C. JAHNKE
Filed: 3 Feb 19
Utility
System and Method for Removing Water and Hydrogen from Anode Exhaust
24 Jun 20
A fuel cell system includes an anode configured to output an anode exhaust stream comprising hydrogen, carbon dioxide, and water; and a membrane dryer configured to receive the anode exhaust stream, remove water from the anode exhaust stream, and output a membrane dryer outlet stream.
Stephen JOLLY, Frank J. CHIMBOLE, JR., Fred C. JAHNKE, Jonathan MALWITZ, Hossein GHEZEL-AYAGH
Filed: 20 Dec 18
Utility
Energy storage using an REP with an engine
8 Jun 20
An energy storage system includes a power plant configured to generate an exhaust gas comprising carbon dioxide.
Fred C. Jahnke, Matthew Lambrech
Filed: 14 May 18