公开(公告)号：US11165073B2

公开(公告)日：2021-11-02

申请号：US16336158

申请日：2017-10-16

Applicant: PRECISION COMBUSTION, INC.

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

IPC: H01M8/04007 ,  H01M8/12 ,  H01M8/18 ,  H01M8/0612 ,  C25B15/02 ,  C25B15/08 ,  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 in 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：US20210202964A1

公开(公告)日：2021-07-01

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.

公开(公告)号：US20200131984A1

公开(公告)日：2020-04-30

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 ,  F02M26/36 ,  F02B43/12 ,  F02B47/06 ,  B01J23/46 ,  B01J35/06 ,  C01B3/38 ,  C10L1/12 ,  C10L1/02 ,  C10L10/02

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：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：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.

公开(公告)号：US11476484B1

公开(公告)日：2022-10-18

申请号：US16672663

申请日：2019-11-04

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Timothy LaBreche ,  Saurabh Vilekar ,  Francesco Macri

IPC: H01M8/0612 ,  H01M8/1246 ,  H01M8/04007 ,  H01M8/2475 ,  H01M8/04014 ,  B01J19/00 ,  B01J23/74 ,  H01M8/12

Abstract: A thermally integrated hotbox apparatus combining a steam reformer, a plurality of solid oxide fuel cell (SOFC) stacks, a plurality of oxidant manifolds, and at least one heat extractor. The steam reformer occupies a central position in the hotbox, around which are disposed in spaced-apart relation a plurality of SOFC stacks. A burner may be associated with the steam reformer, either within or outside the hotbox. An oxidant manifold is disposed between each pair of adjacent SOFC stacks. A heat exchanger is incorporated between an SOFC stack and an oxygen manifold. The hotbox design optimally captures thermal heat from the SOFC stacks for use in producing steam and operating the endothermic steam reformer. The apparatus reduces duty cycle of the burner, which produces heat and steam needed for operation of the endothermic steam reformer.

公开(公告)号：US20230006227A1

公开(公告)日：2023-01-05

申请号：US17940096

申请日：2022-09-08

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Timothy LaBreche ,  Saurabh Vilekar ,  Francesco Macri

IPC: H01M8/0612 ,  B01J23/74 ,  H01M8/2475 ,  H01M8/04007 ,  H01M8/04014 ,  H01M8/1246 ,  B01J19/00

Abstract: A thermally integrated hotbox apparatus combining a steam reformer, a plurality of solid oxide fuel cell (SOFC) stacks, a plurality of oxidant manifolds, and at least one heat extractor. The steam reformer occupies a central position in the hotbox, around which are disposed in spaced-apart relation a plurality of SOFC stacks. A burner may be associated with the steam reformer, either within or outside the hotbox. An oxidant manifold is disposed between each pair of adjacent SOFC stacks. A heat exchanger is incorporated between an SOFC stack and an oxygen manifold. The hotbox design optimally captures thermal heat from the SOFC stacks for use in producing steam and operating the endothermic steam reformer. The apparatus reduces duty cycle of the burner, which produces heat and steam needed for operation of the endothermic steam reformer.

公开(公告)号：US20190229352A1

公开(公告)日：2019-07-25

申请号：US16336158

申请日：2017-10-16

Applicant: PRECISION COMBUSTION, INC.

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

IPC: H01M8/04007 ,  H01M8/12 ,  H01M8/18 ,  H01M8/0612

Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an in 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：US20160257563A1

公开(公告)日：2016-09-08

申请号：US14885137

申请日：2015-10-16

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Christian Junaedi ,  Saurabh Vilekar ,  Dennis E. Walsh

IPC: C01B3/38

CPC classification number: C01B3/386 ,  B01D53/48 ,  B01D2253/108 ,  B01D2253/1124 ,  B01D2255/20792 ,  B01D2256/16 ,  B01D2256/20 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  C01B3/382 ,  C01B3/48 ,  C01B2203/0244 ,  C01B2203/0261 ,  C01B2203/0283 ,  C01B2203/042 ,  C01B2203/043 ,  C01B2203/0485 ,  C01B2203/066 ,  C01B2203/1005 ,  C01B2203/1023 ,  C01B2203/1029 ,  C01B2203/1047 ,  C01B2203/1064 ,  C01B2203/1082 ,  C01B2203/1235 ,  C01B2203/1247 ,  C01B2203/142

Abstract: A reforming process and apparatus exhibiting improved catalyst longevity towards reforming a high sulfur-containing liquid fuel. The process involves contacting in a first reforming zone a first oxidant and a liquid fuel containing high molecular weight organosulfur compounds with a partial oxidation catalyst under CPOX reaction conditions to form a first reformate stream containing a mixture of unconverted and partially-converted hydrocarbons and one or more low molecular weight sulfur compounds; and then contacting in a second reforming zone the first reformate stream with steam and optionally a second oxidant in the presence of an autothermal reforming catalyst under ATR reaction conditions to form a second reformate stream containing carbon monoxide and hydrogen and one or more low molecular weight sulfur compounds. The low molecular weight sulfur compounds can be readily removed from the first and/or second reformate streams by gas phase adsorption methods.

Abstract translation: 一种重整方法和装置，其显示出改善催化剂寿命以重新制备高含硫液体燃料。 该方法包括使第一氧化剂和含有高分子量有机硫化合物的液体燃料在CPOX反应条件下与部分氧化催化剂接触以形成含有未转化和部分转化的烃的混合物的第一重整产物流，以及一种或 更低分子量的硫化合物; 然后在ATR反应条件下，在自热重整催化剂存在下，在第二重整区使第一重整产物流与蒸汽和任选的第二氧化剂接触，以形成含有一氧化碳和氢气以及一种或多种低分子量硫的第二重整产物流 化合物。 低分子量硫化合物可以通过气相吸附方法从第一和/或第二重整产物流中容易地除去。

公开(公告)号：US11760629B1

公开(公告)日：2023-09-19

申请号：US17336612

申请日：2021-06-02

Applicant: Precision Combustion, Inc.

Inventor： Saurabh Vilekar ,  Eric Allocco ,  Subir Roychoudhury

IPC: C01B3/38 ,  B01J8/00

CPC classification number: C01B3/382 ,  B01J8/008 ,  B01J2208/00539 ,  B01J2208/00548 ,  C01B2203/0233 ,  C01B2203/0455 ,  C01B2203/0485 ,  C01B2203/063 ,  C01B2203/1017 ,  C01B2203/1064 ,  C01B2203/1235 ,  C01B2203/1258

Abstract: A process for hydrogen recovery from refinery gas system comprising supplying the refinery gas to an inlet manifold fluidly coupled to a conditioning stage, the conditioning stage comprising a reactor having a reforming catalyst deposited on an ultra-short-channel-length metal substrate; supplying oxidant to the conditioning stage via the inlet manifold; supplying steam from a steam generator to the conditioning stage via the inlet , manifold; reacting the refinery gas in the conditioning stage; and discharging a product through a discharge outlet fluidly coupled to the conditioning stage, the discharge outlet configured to flow the product for use by a downstream reformer. The process allows to either increase the H2 production rate or lower the firing rate while maintaining a constant H2 production rate for the downstream steam reformer, independent of the feed compositional variability of the refinery or still gas.