公开(公告)号：US10763529B2

公开(公告)日：2020-09-01

申请号：US15983005

申请日：2018-05-17

Applicant: FuelCell Energy, Inc.

Inventor： Hossein Ghezel-Ayagh ,  James B. Walzak

IPC: H01M8/04 ,  H01M8/0606 ,  H01M8/0662 ,  H01M8/04089 ,  H01M8/04111

Abstract: 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. The system further includes a pressurizing assembly downstream from the anode and an oxidizer downstream from the anode. The cathode feed gas is the anode exhaust that has been compressed in the pressurizing assembly and reacted with air in the oxidizer.

公开(公告)号：US11888187B2

公开(公告)日：2024-01-30

申请号：US16695281

申请日：2019-11-26

Applicant: ExxonMobil Technology and Engineering Company ,  FUELCELL ENERGY, INC.

Inventor： Abdelkader Hilmi ,  Timothy A. Barckholtz ,  Jonathan Rosen ,  Heather A. Elsen ,  Gabor Kiss ,  Carl A. Willman ,  Chao-Yi Yuh ,  Hossein Ghezel-Ayagh ,  Timothy C. Geary

IPC: H01M8/04119 ,  H01M8/04746 ,  H01M8/14 ,  H01M8/0444 ,  H01M8/0438 ,  H01M8/04791

CPC classification number: H01M8/04179 ,  H01M8/04753 ,  H01M8/145 ,  H01M8/0441 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04402 ,  H01M8/04447 ,  H01M8/04455 ,  H01M8/04462 ,  H01M8/04477 ,  H01M8/04761 ,  H01M8/04798 ,  H01M8/04805 ,  H01M2008/147 ,  H01M2300/0051

Abstract: Molten carbonate fuel cells (MCFCs) are operated to provide enhanced CO2 utilization. This can increase the effective amount of carbonate ion transport that is achieved. The enhanced CO2 utilization is enabled in part by operating an MCFC under conditions that cause transport of alternative ions across the electrolyte. The amount of alternative ion transport that occurs during enhanced CO2 utilization can be mitigated by using a more acidic electrolyte.

公开(公告)号：US11201337B2

公开(公告)日：2021-12-14

申请号：US16229285

申请日：2018-12-21

Applicant: FuelCell Energy, Inc.

Inventor： Stephen Jolly ,  Frank J. Chimbole, Jr. ,  Fred C. Jahnke ,  Jonathan Malwitz ,  Hossein Ghezel-Ayagh

IPC: H01M8/0668 ,  H01M8/0662 ,  H01M8/04828 ,  H01M8/04492 ,  H01M8/04119 ,  H01M8/04089 ,  B01D53/26 ,  B01D53/00

Abstract: 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. The membrane dryer includes a first chamber configured to receive the anode exhaust stream; a second chamber configured to receive a purge gas; and a semi-permeable membrane separating the first chamber and the second chamber. The semi-permeable membrane is configured to allow water to diffuse therethrough, thereby removing water from the anode exhaust stream. The membrane dryer may further be configured to remove hydrogen from the anode exhaust stream.

公开(公告)号：US10673084B2

公开(公告)日：2020-06-02

申请号：US15802219

申请日：2017-11-02

Applicant: FuelCell Energy, Inc.

Inventor： Hossein Ghezel-Ayagh

IPC: H01M8/0668 ,  H01M8/04014 ,  H01M8/04089 ,  H01M8/14 ,  H01M8/0662 ,  H01M8/04119

Abstract: A power producing system adapted to be integrated with a flue gas generating assembly, the flue gas generating assembly including one or more of a fossil fueled installation, a fossil fueled facility, a fossil fueled device, a fossil fueled power plant, a boiler, a combustor, a furnace and a kiln in a cement factory, and the power producing system utilizing flue gas containing carbon dioxide and oxygen output by the flue gas generating assembly and comprising: a fuel cell comprising an anode section and a cathode section, wherein inlet oxidant gas to the cathode section of the fuel cell contains the flue gas output from the flue gas generating assembly; and a gas separation assembly receiving anode exhaust output from the anode section of the fuel cell and including a chiller assembly for cooling the anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the anode exhaust, wherein waste heat produced by the fuel cell is utilized to drive the chiller assembly.

公开(公告)号：US11975969B2

公开(公告)日：2024-05-07

申请号：US17194597

申请日：2021-03-08

Applicant: FuelCell Energy, Inc.

Inventor： Fred C. Jahnke ,  Stephen Jolly ,  Hossein Ghezel-Ayagh

IPC: C01B3/56 ,  F25J1/00 ,  H01M8/04007 ,  H01M8/0612 ,  H01M8/0656 ,  H01M8/14 ,  H01M16/00

CPC classification number: C01B3/56 ,  F25J1/0027 ,  H01M8/04007 ,  H01M8/0618 ,  H01M8/0656 ,  H01M8/14 ,  H01M16/003 ,  C01B2203/0233 ,  C01B2203/0425 ,  C01B2203/0475 ,  C01B2203/066 ,  C01B2203/0872 ,  C01B2203/148 ,  C01B2203/86 ,  F25J2205/50 ,  F25J2215/80 ,  H01M2008/147 ,  Y02C20/40

Abstract: A molten carbonate fuel cell-powered system for capturing carbon dioxide produced by a steam methane reformer system. Tail gas from a pressure swing adsorption system is mixed with exhaust gas from the fuel cell anode, then pressurized and cooled to extract liquefied carbon dioxide. The residual low-CO2 gas is directed to an anode gas oxidizer, to the anode, to the reformer to be burned for fuel, and/or to the pressure swing adsorption system. Low-CO2 flue gas from the reformer can be vented to the atmosphere or directed to the anode gas oxidizer. Reduction in the amount of CO2 reaching the fuel cell allows the fuel cell to be sized according to the power demands of the system and eliminates the need to export additional power output.

公开(公告)号：US11211625B2

公开(公告)日：2021-12-28

申请号：US16095261

申请日：2017-04-20

Applicant: FuelCell Energy, Inc.

Inventor： Hossein Ghezel-Ayagh

IPC: H01M8/0668 ,  B01D53/047 ,  H01M8/04014 ,  H01M8/04089 ,  B01D53/32 ,  H01M8/04119 ,  H01M8/04828 ,  H01M8/0662 ,  B01D53/26 ,  H01M8/0612 ,  H01M8/14

Abstract: A fuel cell system includes a first fuel cell having a first anode and a first cathode, wherein the first anode is configured to output a first anode exhaust gas. The system further includes a first oxidizer configured to receive the first anode exhaust gas and air from a first air supply, to react the first anode exhaust gas and the air in a preferential oxidation reaction, and to output an oxidized gas. The system further includes a second fuel cell configured to act as an electrochemical hydrogen separator. The second fuel cell includes a second anode configured to receive the oxidized gas from the first oxidizer and to output a second anode exhaust gas, and a second cathode configured to output a hydrogen stream. The system further includes a condenser configured to receive the second anode exhaust gas and to separate water and CO2.

公开(公告)号：US20160248110A1

公开(公告)日：2016-08-25

申请号：US14631239

申请日：2015-02-25

Applicant: FUELCELL ENERGY, INC.

Inventor： Hossein Ghezel-Ayagh

IPC: H01M8/06 ,  H01M8/14

CPC classification number: H01M8/0668 ,  H01M8/04014 ,  H01M2008/147 ,  H01M2250/40 ,  Y02E60/526 ,  Y02E60/56 ,  Y02P90/40

Abstract: A power producing system adapted to be integrated with a flue gas generating assembly, the flue gas generating assembly including one or more of a fossil fueled installation, a fossil fueled facility, a fossil fueled device, a fossil fueled power plant, a boiler, a combustor, a furnace and a kiln in a cement factory, and the power producing system utilizing flue gas containing carbon dioxide and oxygen output by the flue gas generating assembly and comprising: a fuel cell comprising an anode section and a cathode section, wherein inlet oxidant gas to the cathode section of the fuel cell contains the flue gas output from the flue gas generating assembly; and a gas separation assembly receiving anode exhaust output from the anode section of the fuel cell and including a chiller assembly for cooling the anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the anode exhaust, wherein waste heat produced by the fuel cell is utilized to drive the chiller assembly.

Abstract translation: 一种适于与烟道气发生组件集成的发电系统，所述烟道气发生组件包括化石燃料装置，化石燃料设施，化石燃料装置，化石燃料发电厂，锅炉， 燃烧器，水泥厂中的炉子和窑炉，以及利用由烟道气发生组件输出的含有二氧化碳和氧气的烟道气的发电系统，包括：燃料电池，其包括阳极部分和阴极部分，其中入口氧化剂 燃料电池的阴极部分的气体包含从烟道气发生组件输出的烟气; 以及气体分离组件，其接收从燃料电池的阳极部分输出的阳极废气，并且包括用于将阳极废气冷却至预定温度的冷却器组件，以便液化阳极排气中的二氧化碳，其中由燃料电池产生的废热 用于驱动冷却器组件。

公开(公告)号：US11476486B2

公开(公告)日：2022-10-18

申请号：US16695286

申请日：2019-11-26

Applicant: ExxonMobil Technology and Engineering Company ,  FUELCELL ENERGY, INC.

Inventor： Rodrigo F. Blanco Gutierrez ,  Eric B. Shen ,  Carla S. Pereira ,  Keith E. Davis ,  Hossein Ghezel-Ayagh

IPC: H01M8/14 ,  H01M8/249 ,  H01M8/04828 ,  H01M8/04537 ,  H01M8/04791 ,  H01M8/0637 ,  H01M8/04858

Abstract: 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. The fuel cell staging can mitigate the amount of alternative ion transport that occurs when operating molten carbonate fuel cells under conditions for elevated CO2 utilization.

公开(公告)号：US11374235B2

公开(公告)日：2022-06-28

申请号：US16696310

申请日：2019-11-26

Applicant: FuelCell Energy, Inc.

Inventor： Hossein Ghezel-Ayagh

IPC: H01M8/0254 ,  H01M8/026 ,  H01M8/2485 ,  H01M8/0276 ,  H01M8/0206 ,  H01M8/0215 ,  H01M8/14 ,  H01M8/0258

Abstract: An anode of a fuel cell has an anode current collector defining an inlet configured to receive fuel gas and an outlet configured to output the fuel gas, a barrier that divides an active area of the anode current collector into a first area and a second area, and a flow passage configured to allow a flow of fuel gas from the inlet through the first area and the second area to the outlet. An obstacle is located in the flow passage in an inactive area of the anode current collector and is configured to change a flow direction of the fuel gas in the flow passage from the first area to the second area to achieve intra-cell mixing of the fuel gas.

公开(公告)号：US11362360B2

公开(公告)日：2022-06-14

申请号：US16094999

申请日：2017-04-21

Applicant: FuelCell Energy, Inc.

Inventor： Hossein Ghezel-Ayagh ,  Stephen Jolly

IPC: H01M8/0668 ,  H01M8/04992 ,  F23J15/02 ,  H01M8/04858 ,  B01D53/32 ,  H01M8/14 ,  H01M8/04664 ,  B01D53/30 ,  H01M8/04955 ,  H01M8/0662 ,  H01M8/0444 ,  H01M8/0637 ,  B01D53/00

Abstract: 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.