132 patents
Page 2 of 7
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
Elevated Pressure Operation Of Molten Carbonate Fuel Cells With Enhanced CO2 Utilization
3 Nov 22
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
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
Utility
Edge Leveler with Offset Rollers
29 Sep 22
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
System and Method for Producing Hydrogen Using High Temperature Fuel Cells
15 Sep 22
A steam methane reformer-integrated fuel cell system includes: at least one fuel cell including: an anode, a cathode, and an electrolyte matrix separating the anode and the cathode; an anode gas oxidizer (AGO) configured to receive anode exhaust gas from the at least one fuel cell and a preheated air stream such that the anode exhaust gas reacts with the preheated air stream to produce a high-temperature exhaust stream, and configured to provide the high-temperature exhaust stream to the cathode of the at least one fuel cell; and a steam methane reformer configured to utilize heat from the high-temperature exhaust stream output from the AGO and to react methane with steam to produce a first product stream including hydrogen (H2), carbon dioxide (CO2), and carbon monoxide (CO).
Fred C. Jahnke, Matthew Lambrech
Filed: 25 May 22
Utility
System and method for producing hydrogen using high temperature fuel cells
13 Sep 22
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: 10 Sep 20
Utility
Binder for electrolyte matrix for molten carbonate fuel cells
30 Aug 22
A binder solution for an electrolyte matrix for use with molten carbonate fuel cells is provided.
Arun Surendranath, Abdelkader Hilmi, Chao-Yi Yuh
Filed: 12 Apr 17
Utility
Low pressure carbon dioxide removal from the anode exhaust of a fuel cell
23 Aug 22
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: 1 Sep 20
Utility
Elevated pressure operation of molten carbonate fuel cells with enhanced CO2 utilization
23 Aug 22
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: 26 Nov 19
Utility
Flow Baffle for Molten Carbonate Fuel Cell
11 Aug 22
Molten carbonate fuel cell configurations are provided that allow for introduction of an anode input gas flow on a side of the fuel cell that is adjacent to the entry side for the cathode input gas flow while allowing the anode and cathode to operate under co-current flow and/or counter-current flow conditions.
Christopher Howard, Brandon J. O'Neill, Paul J. Rubas, Frank Hershkowitz, Lu Han, Lawrence J. Novacco, Frank J. Dobek, Keith David, Brian Bullecks
Filed: 11 Feb 21
Utility
Fluidized Catalytic Cracking Unit System with Integrated Reformer-electrolyzer-purifier
4 Aug 22
A fluidized catalytic cracking unit system includes: a fluidized catalytic cracking unit assembly including a first catalyst regenerator and a cracking unit, the cracking unit configured to output spent catalyst to the first catalyst regenerator; and a reformer-electrolyzer-purifier assembly comprising a reformer-electrolyzer-purifier cell, the reformer-electrolyzer-purifier cell comprising an anode section and a cathode section.
Fred C. JAHNKE
Filed: 22 Apr 22
Utility
Solid Oxide Fuel Cell System with Carbon Capture and Increased Efficiency
4 Aug 22
A fuel cell system includes a fuel cell module having an inlet and an outlet.
Casy Cloudless BROWN
Filed: 3 Dec 21
Utility
Edge leveler with offset rollers
2 Aug 22
An edge leveler for leveling an edge of a plate includes a first frame, a plurality of first rollers rotatably mounted along the first frame; a second frame, and a plurality of second rollers rotatably mounted along the second frame.
Benjamin Aldrich, Carson Payne, Steve Rulli, Marc Gizzie, Steve Ayres
Filed: 9 Sep 19
Utility
High Efficiency Humidity Management System for Fuel Cells and Higher-temperature Electrochemical Systems
28 Jul 22
A humidity transfer assembly includes a pressure vessel and a humidity transfer device disposed in the pressure vessel.
Pinakin PATEL, Jonathan MALWITZ, Ludwig LIPP, Jesse ROY
Filed: 28 Feb 22
Utility
In-situ monitoring of flue gas contaminants for fuel cell systems
14 Jun 22
A power production system includes a fuel cell separation system configured to receive a flue gas and to produce electrical power therefrom; a flue gas polishing system positioned upstream of the fuel cell separation system and configured to remove contaminants in the flue gas; a flue gas analyzer configured to measure in real-time an amount of the contaminants in the flue gas; and a plant control system operatively coupled to the flue gas polishing system, the flue gas analyzer, and the fuel cell separation system and configured to adjust operational parameters of the flue gas polishing system.
Hossein Ghezel-Ayagh, Stephen Jolly
Filed: 21 Apr 17
Utility
Operation of Molten Carbonate Fuel Cells with High Electrolyte Fill Level
2 Jun 22
An elevated target amount of electrolyte is used to initially fill a molten carbonate fuel cell that is operated under carbon capture conditions.
Jonathan Rosen, Heather A. Elsen, Gabor Kiss, William A. Lamberti, William C. Horn, Anding Zhang, Timothy C. Geary, Adam Franco, Abdelkader Hilmi
Filed: 22 Feb 22