公开(公告)号：US20210384537A1

公开(公告)日：2021-12-09

申请号：US17285542

申请日：2019-11-04

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Timothy LaBreche ,  Saurabh Vilekar ,  Chunming Qi

IPC: H01M8/0612 ,  H01M8/04111 ,  H01M8/04014 ,  H01M8/04119

Abstract: An integrated power generation system including: a hotbox containing a steam reformer and at least one solid oxide fuel cell (SOFC) stack; a condenser, a combustor, a heater, and a turbomachine comprising a compressor and an expander. The steam reformer is configured to convert a hydrocarbon fuel and steam into a stack fuel. The SOFC stack is configured to convert the stack fuel into a first anode waste gas. The condenser functions to remove water from the first anode waste gas, thereby producing a second anode waste gas of higher fuel energy density. The combustor bums the second anode waste gas with release of exothermic heat. The heater thermally transmits heat from an expanded combustion product to water collected in the condenser, so as to generate steam. A steam line fluidly connects the heater to the steam reformer.

公开(公告)号：US11011763B2

公开(公告)日：2021-05-18

申请号：US16336146

申请日：2017-10-16

Applicant: PRECISION COMBUSTION, INC.

Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

IPC: H01M8/04007 ,  C25B15/02 ,  C25B15/08 ,  H01M8/0612 ,  H01M8/12 ,  H01M8/18 ,  C25B1/00 ,  H01M8/2483 ,  H01M8/0258 ,  H01M8/2425 ,  C25B1/04 ,  C25B9/19 ,  C25B9/70 ,  C25B9/77 ,  C25B11/00 ,  H01M8/124

Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.

公开(公告)号：US10787959B2

公开(公告)日：2020-09-29

申请号：US16463409

申请日：2017-12-06

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Richard Mastanduno ,  Eric Edward Allocco ,  Saurabh Vilekar

IPC: F02B51/02 ,  F02M27/02 ,  C01B3/38 ,  C10L1/02 ,  F02M26/36 ,  B01J23/46 ,  B01J35/06 ,  C10L1/12 ,  C10L10/02 ,  F02B43/12 ,  F02B47/06 ,  F02B43/10

Abstract: A process of operating a spark-ignited internal combustion engine (SI-ICE) with improved fuel efficiency and reduced emissions including under steady state and under lean-operating conditions at high overall air to fuel (AFR) ratios. A first supply of high octane hydrocarbon fuel, such as gasoline or natural gas, and a first supply of oxidant are fed to a fuel reformer to produce a gaseous reformate with a reforming efficiency of greater than 75 percent relative to equilibrium. The gaseous reformate is mixed with a second supply of oxidant, after which the resulting reformate blended oxidant is fed with a second supply of high octane hydrocarbon fuel to the SI-ICE for combustion. Steady state fuel efficiency is improved by more than 3 percent, when the reformate comprises from greater than about 1 to less than about 18 percent of the total volume of reformate blended oxidant fed to the engine.

公开(公告)号：US10411281B1

公开(公告)日：2019-09-10

申请号：US15894016

申请日：2018-02-12

Applicant: Precision Combustion, Inc.

Inventor： Saurabh Vilekar ,  Subir Roychoudhury ,  Christian Junaedi ,  Richard Mastanduno

IPC: H01M8/04007 ,  H01M8/04014 ,  H01M8/0612 ,  H01M8/1246 ,  H01M8/2425 ,  C01B3/40 ,  B01J19/24 ,  H01M8/124

Abstract: This invention pertains to a thermally-integrated solid oxide fuel cell system, providing for a solid oxide fuel cell stack disposed within a stack hotbox; a heat extractor disposed within the stack hotbox in thermal communication with the fuel cell stack and circumscribed around a full or partial perimeter of the fuel cell stack; a fuel reformer-combustor module disposed within the stack hotbox in thermal communication with the stack and disposed around a full or partial perimeter of the heat extractor; and a manifold fluidly connecting an outlet of the heat extractor to an inlet of a reformer section of the fuel reformer-combustor module.

公开(公告)号：US20190226101A1

公开(公告)日：2019-07-25

申请号：US16336146

申请日：2017-10-16

Applicant: PRECISION COMBUSTION, INC.

Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

IPC: C25B9/08 ,  C25B1/06 ,  C25B15/02 ,  C25B15/08 ,  C25B9/20 ,  H01M8/04007 ,  H01M8/0612 ,  H01M8/12 ,  H01M8/18

Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.

公开(公告)号：US10001278B1

公开(公告)日：2018-06-19

申请号：US14998388

申请日：2015-12-28

Applicant: Precision Combustion, Inc.

Inventor： Subir Roychoudhury ,  Richard Mastanduno ,  Bruce Crowder ,  David Lang Spence ,  Francesco Macri ,  Julian David Prada Bernal

IPC: F23N1/00 ,  F23K5/10 ,  F23N3/00 ,  F23K5/00

CPC classification number: F23K5/08 ,  F23D5/126 ,  F23D17/002 ,  F23K2900/05081

Abstract: An apparatus and method for operating a gas-fired burner on a liquid fuel. The apparatus integrates a catalytic liquid fuel reformer with a flame burner designed for operation on a gaseous fuel of high Wobbe Index, e.g., natural gas. The method involves reacting a mixture of a liquid fuel and oxidant in a catalytic reformer to obtain a gaseous reformate having a low Wobbe Index; and thereafter combusting the gaseous reformate, optionally augmented with liquid co-fuel and oxidant, in the gas-fired burner under diffusion flame conditions. The invention allows commercial gas-fired appliances, such as stoves, ovens, ranges, grills, griddles, stock pot burners, clothes dryers, hot water heaters, and boilers to be operated on a liquid fuel, which offers advantages in logistics and camp operations.

公开(公告)号：US11973249B2

公开(公告)日：2024-04-30

申请号：US17285542

申请日：2019-11-04

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Timothy LaBreche ,  Saurabh Vilekar ,  Chunming Qi

IPC: H01M8/04111 ,  H01M8/04014 ,  H01M8/04119 ,  H01M8/0612 ,  H01M8/12

CPC classification number: H01M8/0618 ,  H01M8/04022 ,  H01M8/04111 ,  H01M8/04156 ,  H01M2008/1293

Abstract: An integrated power generation system including: a hotbox containing a steam reformer and at least one solid oxide fuel cell (SOFC) stack; a condenser, a combustor, a heater, and a turbomachine comprising a compressor and an expander. The steam reformer is configured to convert a hydrocarbon fuel and steam into a stack fuel. The SOFC stack is configured to convert the stack fuel into a first anode waste gas. The condenser functions to remove water from the first anode waste gas, thereby producing a second anode waste gas of higher fuel energy density. The combustor burns the second anode waste gas with release of exothermic heat. The heater thermally transmits heat from an expanded combustion product to water collected in the condenser, so as to generate steam. A steam line fluidly connects the heater to the steam reformer.

公开(公告)号：US20240052506A1

公开(公告)日：2024-02-15

申请号：US18547195

申请日：2022-03-04

Applicant: Precision Combustion, Inc.

Inventor： Toshio Suzuki ,  Christian Junaedi ,  Subir Roychoudhury

IPC: C25B11/069 ,  C25B9/23 ,  C25B11/031 ,  C25B11/052 ,  H01M4/88 ,  H01M8/1226 ,  H01M8/1253 ,  H01M4/90 ,  H01M4/86 ,  H01M8/0245 ,  H01M8/0232 ,  H01M8/0236

CPC classification number: C25B11/069 ,  C25B9/23 ,  C25B11/031 ,  C25B11/052 ,  H01M4/8803 ,  H01M8/1226 ,  H01M8/1253 ,  H01M4/9033 ,  H01M4/8621 ,  H01M8/0245 ,  H01M8/0232 ,  H01M8/0236 ,  H01M2008/1293

Abstract: A metal substrate for use in a metal-supported electrochemical cell is disclosed, the substrate containing a porous metal support comprising a first metal, such as a ferritic alloy, having applied on one side thereon a barrier layer comprising a bimodal distribution of micron-sized grains of a second metal, for example, nickel, and submicron-sized grains of a metal oxide, for example, gadolinium-doped ceria. A method of fabricating the metal substrate is disclosed. A metal-supported electrode and a metal-supported electrochemical cell are fabricated with the metal substrate.

公开(公告)号：US20230051172A1

公开(公告)日：2023-02-16

申请号：US17889992

申请日：2022-08-17

Applicant: PRECISION COMBUSTION, INC.

Inventor： Toshio Suzuki ,  Timothy LaBreche ,  Christian Junaedi ,  Subir Roychoudhury ,  Hongpeng He

IPC: H01M8/0245 ,  H01M8/0232 ,  H01M8/0236 ,  H01M8/0243 ,  H01M4/86 ,  H01M4/90 ,  H01M8/1253 ,  H01M8/1226

Abstract: A clad porous metal substrate for use in a metal-supported electrochemical cell, wherein a metal support layer of defined porosity is clad on top and bottom sides with a layer containing a metal and/or a metal oxide. A metal-supported electrochemical half-cell and a metal-supported electrochemical cell are also described.

公开(公告)号：US11581553B2

公开(公告)日：2023-02-14

申请号：US17193054

申请日：2021-03-05

Applicant: PRECISION COMBUSTION, INC.

Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

IPC: H01M8/04007 ,  C25B15/02 ,  C25B15/08 ,  H01M8/0612 ,  H01M8/12 ,  H01M8/18 ,  C25B1/00 ,  H01M8/2483 ,  H01M8/0258 ,  H01M8/2425 ,  C25B1/04 ,  C25B9/19 ,  C25B9/70 ,  C25B9/77 ,  C25B11/00

Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.