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公开(公告)号：US20240009618A1
公开(公告)日：2024-01-11
申请号：US18199411
申请日：2023-05-19
Applicant: Air Products and Chemicals, Inc.
Inventor： Ranajit Ghosh , Mark Daniel D'Agostini
CPC classification number: B01D53/62 , B01D53/75 , B01D53/50 , B01D53/96 , B01D2251/604 , B01D2257/302 , B01D2257/504 , B01D2258/0241 , B01D2258/0283 , B01D2259/80
Abstract: An apparatus and process for use of an alkaline reagent (e.g. sodium hydroxide, NaOH, potassium hydroxide, KOH, etc.) to facilitate removal of carbon dioxide (CO2) from flue gas output from a glass melting operation. The CO2 removed from the flue gas can be in carbonates formed in the reaction of the reagent with the flue gas, which can be used in glass melting operations. A portion of the flue gas can also be liquefied in some embodiments to produce a liquefied CO2 stream for other uses. In some embodiments, a portion of the carbonate generated from the CO2 removal process can be heated (e.g. in an indirect heat exchange process) to liberate the CO2 for feeding the liberated CO2 to a liquefaction process while a resultant oxide formed via the CO2 liberation can be hydrolyzed to regenerate the alkaline reagent for subsequent use in the CO2 removal process.
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公开(公告)号：US11549874B2
公开(公告)日：2023-01-10
申请号：US17151928
申请日：2021-01-19
Applicant: Air Products and Chemicals, Inc.
Inventor： Liang He , Ranajit Ghosh , Donald James Bowe , Reed Jacob Hendershot
Abstract: An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.
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公开(公告)号：US20160045981A1
公开(公告)日：2016-02-18
申请号：US14822225
申请日：2015-08-10
Applicant: AIR PRODUCTS AND CHEMICALS, INC.
Inventor： Zbigniew Zurecki , Ranajit Ghosh
IPC: B23K26/14 , B23K26/12 , B23K26/00 , B23K26/342
CPC classification number: B23K26/1437 , B22F3/1055 , B22F2003/1056 , B23K26/123 , B23K26/127 , B23K26/342 , B23K2103/04 , B23K2103/05 , B23K2103/08 , B23K2103/10 , B23K2103/12 , B23K2103/14 , B23K2103/15 , B23K2103/26 , B33Y10/00 , B33Y30/00 , Y02P10/295
Abstract: Methods and systems for controlling gas atmospheres in three-dimensional laser printing and weld overlay consolidation operations using metallic powders are provided. In one or more embodiments, such systems and methods comprise a printing chamber or laser weld overlay system, a gas supply system, a feed powder system, and one or more sensors employed to control the printing or welding operation. The methods and systems of the invention employ one or more inert gases having a purity greater than or equal to 99.995%
Abstract translation: 提供了使用金属粉末来控制三维激光打印和焊接叠加操作中的气体环境的方法和系统。 在一个或多个实施例中，这样的系统和方法包括印刷室或激光焊接覆盖系统，气体供应系统，进料粉末系统以及用于控制印刷或焊接操作的一个或多个传感器。 本发明的方法和系统采用一种或多种纯度大于或等于99.995％的惰性气体，
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公开(公告)号：US20220008995A1
公开(公告)日：2022-01-13
申请号：US17341488
申请日：2021-06-08
Applicant: Air Products and Chemicals, Inc.
Inventor： Liang He , Ranajit Ghosh , Mark Kurt Weise
IPC: B22F10/34 , B22F12/41 , B22F12/20 , B22F12/90 , B22F10/20 , B22F10/85 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A method and system for providing cooling to a part formed using high-temperature additive manufacturing process. Infrared sensors or cameras are used to measure sidewall temperatures and, optionally, top layer temperature. Coolant nozzles provide cooling to the sidewalls of the finished layers and, optionally, to the top layer. The coolant intensity of the coolant nozzles is controlled in order to reduce temperature gradients between layers and/or to maintain temperatures in each layer below preferred maximum temperature.
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公开(公告)号：US10730142B2
公开(公告)日：2020-08-04
申请号：US14822225
申请日：2015-08-10
Applicant: AIR PRODUCTS AND CHEMICALS, INC.
Inventor： Zbigniew Zurecki , Ranajit Ghosh
IPC: B23K26/14 , B33Y30/00 , B22F3/105 , B23K26/12 , B33Y10/00 , B23K26/342 , B23K103/04 , B23K103/08 , B23K103/10 , B23K103/12 , B23K103/14 , B23K103/18
Abstract: Methods and systems for controlling gas atmospheres in three-dimensional laser printing and weld overlay consolidation operations using metallic powders are provided. In one or more embodiments, such systems and methods comprise a printing chamber or laser weld overlay system, a gas supply system, a feed powder system, and one or more sensors employed to control the printing or welding operation. The methods and systems of the invention employ one or more inert gases having a purity greater than or equal to 99.995%
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240109802A1
公开(公告)日：2024-04-04
申请号：US18214697
申请日：2023-06-27
Applicant: Air Products and Chemicals, Inc.
Inventor： Eric R. Seo , Liang He , Reed Jacob Hendershot , Michael J. Gallagher , Ranajit Ghosh
CPC classification number: C03B18/20 , B08B5/02 , B08B7/0071 , B08B7/04
Abstract: A controller, process, and glass manufacturing apparatus can be configured to minimize defects. Embodiments can be adapted to control injection of nitrogen and/or argon and a mixture of nitrogen and hydrogen or nitrogen, hydrogen, and argon during glass float manufacturing to facilitate a pre-selected hydrogen concentration within a tin bath furnace while also minimizing glass surface defects that can be caused from tin condensation and tin bath impurity concentrations. Empirical use data can also be collected and provided to a pre-defined machine learning element of a host device to update a pre-defined control scheme of a controller for adapting the operational condition set points or other target values to account for furnace operation history and performance.
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公开(公告)号：US20210140865A1
公开(公告)日：2021-05-13
申请号：US17151928
申请日：2021-01-19
Applicant: Air Products and Chemicals, Inc.
Inventor： Liang He , Ranajit Ghosh , Donald James Bowe , Reed Jacob Hendershot
Abstract: An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.
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公开(公告)号：US11897030B2
公开(公告)日：2024-02-13
申请号：US17341488
申请日：2021-06-08
Applicant: Air Products and Chemicals, Inc.
Inventor： Liang He , Ranajit Ghosh , Mark Kurt Weise
IPC: B22F10/34 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F10/20 , B22F10/85 , B22F12/20 , B22F12/41 , B22F12/90
CPC classification number: B22F10/34 , B22F10/20 , B22F10/85 , B22F12/20 , B22F12/41 , B22F12/90 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22F2203/11
Abstract: A method and system for providing cooling to a part formed using high-temperature additive manufacturing process. Infrared sensors or cameras are used to measure sidewall temperatures and, optionally, top layer temperature. Coolant nozzles provide cooling to the sidewalls of the finished layers and, optionally, to the top layer. The coolant intensity of the coolant nozzles is controlled in order to reduce temperature gradients between layers and/or to maintain temperatures in each layer below preferred maximum temperature.
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9.发明授权公开(公告)号：US10928287B2
公开(公告)日：2021-02-23
申请号：US16100073
申请日：2018-08-09
Applicant: Air Products and Chemicals, Inc.
Inventor： Liang He , Ranajit Ghosh , Donald James Bowe , Reed Jacob Hendershot
Abstract: An apparatus for measuring the composition of a gas mixture containing known components, including a first gas density sensor configured and arranged to measure the density of a first mixture made by combining a gaseous first component and a gaseous second component; a second gas density sensor configured and arranged to measure the density of a second mixture made by combining the first mixture with a gaseous third component; and a processor programmed to determined based on data from the first gas density sensor the relative compositions of the first component and the second component in the first mixture, and to determine based on the data from the second gas density sensor the relative compositions of the first mixture and the third component in the second mixture, and thus to determine the relative compositions of the first component, the second component, and the third component in the second mixture.
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10.发明申请公开(公告)号：US20200232707A1
公开(公告)日：2020-07-23
申请号：US16250294
申请日：2019-01-17
Applicant: Air Products and Chemicals, Inc.
Inventor： Liang He , Guido Plicht , Ranajit Ghosh , Donald James Bowe
Abstract: A method and an apparatus for nitriding metal articles, wherein the nitriding potential of the nitriding atmosphere is controlled as a function of the molecular weights of the inlet and outlet gases from the nitriding apparatus, as measured by molecular weight sensors located outside (external to) the furnace chamber.
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