70 patents
Utility
Fuel cell staging for molten carbonate fuel cells
12 Dec 23
Systems and methods are provided for using fuel cell staging to reduce or minimize variations in current density when operating molten carbonate fuel cells with elevated CO2 utilization.
Rodrigo F. Blanco Gutierrez, Eric B. Shen, Carla S. Pereira, Keith E. Davis, Hossein Ghezel-Ayagh
Filed: 9 Sep 22
Utility
Fuel cell with protection from pressure imbalance
31 Oct 23
A fuel cell system includes a fuel cell.
Joseph M. Daly, Jeffrey Brown, Matthew Crowley, Robert S. Fournier, William J. Snyder, Fred C. Jahnke
Filed: 19 Feb 21
Utility
Edge leveler with offset rollers
10 Oct 23
An edge leveler for leveling an edge of a plate includes a plurality of first rollers and a plurality of second rollers.
Benjamin Aldrich, Carson Payne, Steve Rulli, Marc Gizzie, Steve Ayres
Filed: 14 Jun 22
Utility
Wet seal caulk with enhanced chemical resistance
5 Sep 23
A caulk composition includes: at least one powder component and at least one binder component.
Matthew T. Snider, Chao-yi Yuh
Filed: 31 Aug 20
Utility
Compact high temperature electrochemical cell stack architecture
15 Aug 23
An electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode.
Casy Cloudless Brown, Khun Bong Luc, Cameron James Rankin
Filed: 30 Oct 19
Utility
Hydrogen generation using a fuel cell system with an REP
25 Jul 23
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: 19 May 20
Utility
Heat exchanger with porous material
11 Jul 23
A method for manufacturing a heat exchanger includes: providing a porous material that has a porosity of about 30% to about 80%; forming an oxide layer on a surface of the porous material by heat treating the porous material at a temperature in a range of 600° C. to 900° C. for a time period in a range of 8 hours to 12 hours in air; and integrating the porous material into a cold side flow passage of the heat exchanger.
Matthew Lambrech, Joseph M. Daly, Andrew Skok, Kazim Naqvi, Dennis Farrenkopf, Ling Chen, Allen Adriani
Filed: 18 Oct 21
Utility
Layered cathode for molten carbonate fuel cell
4 Jul 23
A layered cathode structure for a molten carbonate fuel cell is provided, along with methods of forming a layered cathode and operating a fuel cell including a layered cathode.
Abdelkader Hilmi, Gabor Kiss, Rodrigo F. Blanco Gutierrez, Timothy C. Geary, Ethan L. Demeter, Chao-Yi Yuh
Filed: 26 Nov 19
Utility
Fuel cell load cycling to support the electric grid
27 Jun 23
A fuel cell system includes a fuel cell unit configured to generate an amount of electrical power for supply to a varying electrical load and a fuel cell controller configured to receive a first indication that the varying electrical load is at a local maximum within a predetermined period, and, in response, operate the fuel cell unit with an operational parameter having a first value such that the fuel cell unit produces a limited maximum amount of electrical power that is a predetermined percentage of a maximum rated power output of the fuel cell unit.
George P. Berntsen, Ramakrishnan Venkataraman, Mohammad Farooque
Filed: 2 Jun 17
Utility
Fuel cell module assembly and systems using same
30 May 23
A module assembly is provided including a fuel cell stack assembly, a heat exchanger, and a housing enclosing the fuel cell stack assembly and the heat exchanger.
Keith E. Davis, Frank Hershkowitz, Lu Han, Clay R. Sutton, Paul J. Rubas
Filed: 26 Nov 19
Utility
Energy storage for combustion turbine using molten carbonate electrolyzer cell
4 Apr 23
An energy storage system includes: a reformer configured to receive natural gas and steam and to output reformed natural gas; a combustion turbine configured to output heated sweep gas; and a molten carbonate electrolyzer cell (“MCEC”) including: an MCEC anode, and an MCEC cathode configured to receive the heated sweep gas from the combustion turbine.
Fred C. Jahnke
Filed: 24 Jan 22
Utility
Elevated pressure operation of molten carbonate fuel cells with enhanced CO
28 Mar 23
Molten carbonate fuel cells (MCFCs) are operated at elevated pressure to provide increased operating voltage and/or enhanced CO2 utilization with a cathode input stream having a low CO2 content.
Jonathan Rosen, Eric B. Shen, Timothy C. Geary
Filed: 18 Jul 22
Utility
Supported nickel catalysts used as direct internal reforming catalyst in molten carbonate fuel cells
7 Mar 23
Disclosed here is a supported catalyst comprising a thermally stable core, wherein the thermally stable core comprises a metal oxide support and nickel disposed in the metal oxide support, wherein the metal oxide support comprises at least one base metal oxide and at least one transition metal oxide or rare earth metal oxide mixed with or dispersed in the base metal oxide.
Jin-Yun Wang, Mohammad Farooque, Ramakrishnan Venkataraman, Chao-Yi Yuh, April Corpuz
Filed: 14 Apr 21
Utility
Heat recovery from an electrochemical hydrogen separation system
3 Jan 23
An EHS system includes a EHS cell having an anode, a cathode, and a cooling plate disposed proximate at least one of the anode or the cathode, the cooling plate configured to receive water and configured to output steam or a mixture of water and steam.
Fred C. Jahnke, Matthew Lambrech
Filed: 9 Aug 19
Utility
System including fuel cell assembly voltage monitor
3 Jan 23
A system for capturing carbon dioxide in flue gas includes a fuel cell assembly including at least one fuel cell including a cathode portion configured to receive, as cathode inlet gas, the flue gas generated by the flue gas generating device or a derivative thereof, and to output cathode exhaust gas and an anode portion configure to receive an anode inlet gas and to output anode exhaust gas, a fuel cell assembly voltage monitor configured to measure a voltage across the fuel cell assembly, and a controller configured to receive the measured voltage across the fuel cell assembly from the fuel cell assembly voltage monitor, determine an estimated carbon dioxide utilization of the fuel cell assembly based on the measured voltage across the fuel cell assembly, and reduce the carbon dioxide utilization of the fuel cell assembly when the determined estimated carbon dioxide utilization is above a predetermined threshold utilization.
Joseph Michael Daly, Stephen Jolly, Ramakrishnan Venkataraman, Eric Nuhfer
Filed: 11 Mar 21
Utility
Methanation of anode exhaust gas to enhance carbon dioxide capture
22 Nov 22
A power production system includes a flue gas generator configured to generate a flue gas that includes carbon dioxide and oxygen; a fuel supply; a fuel cell assembly that includes: a cathode section configured to receive the flue gas generated by the flue gas generator, and output cathode exhaust, and an anode section configured to receive fuel from the fuel supply, and output anode exhaust that contains hydrogen and carbon dioxide; a methanator configured to receive the anode exhaust, convert at least a portion of the hydrogen in the anode exhaust to methane, and output methanated anode exhaust; a chiller assembly configured to cool the methanated anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the methanated anode exhaust; and a gas separation assembly configured to receive the cooled methanated anode exhaust and separate the liquefied carbon dioxide from residual fuel gas.
Fred C. Jahnke
Filed: 12 Apr 17
Utility
Ultra high efficiency fuel cell power generation system
8 Nov 22
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.
Fred C. Jahnke
Filed: 4 Feb 19
Utility
High-performance electrolyte for molten carbonate fuel cell
8 Nov 22
A molten carbonate fuel cell assembly includes a cathode electrode; an anode electrode; an electrolyte matrix disposed between the cathode electrode and the anode electrode; a cathode current collector abutting the cathode electrode; and a first electrolyte composition stored in the cathode electrode, the first electrolyte composition comprising a first mixture of a eutectic Li/Na carbonate electrolyte doped with one or more additive materials, wherein the one or more additive materials comprise one or more of SrO, BaCO3, BaO, SrCO3, and combinations thereof.
Abdelkader Hilmi, Ethan Demeter
Filed: 21 Jun 17
Utility
Steam generator for fuel cell applications
18 Oct 22
A steam vaporizer assembly includes an internal steam generator having a vessel configured to hold water, a vaporizer unit having a heating element configured to heat the water to generate saturated steam; and a controller configured to: cause the heating element to heat the water to a stand-by temperature; and while maintaining a water level of the water in the vessel between two control points: maintain the water in the vessel at the stand-by temperature until steam generation is required, and when steam generation is required, heating the water in the vessel from the stand-by temperature to a temperature at or above a vaporization temperature of the water using a heating element, to generate the steam.
Frank Dobek, Stephen Jolly, Keith Davis
Filed: 20 Sep 17
Utility
Fuel cell staging for molten carbonate fuel cells
18 Oct 22
Systems and methods are provided for using fuel cell staging to reduce or minimize variations in current density when operating molten carbonate fuel cells with elevated CO2 utilization.
Rodrigo F. Blanco Gutierrez, Eric B. Shen, Carla S. Pereira, Keith E. Davis, Hossein Ghezel-Ayagh
Filed: 26 Nov 19