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公开(公告)号：US20220305439A1
公开(公告)日：2022-09-29
申请号：US17277962
申请日：2020-08-04
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Yuki NAKAMA , Rasika DASANAYAKE ALUTHGE , Masaki NAKAMURA
Abstract: Provision of a gas production apparatus that can stably produce a product gas with carbon monoxide as its main component from a separated gas including carbon dioxide as a main component.
The gas production apparatus 1 consists of the following: a separation and capture section 5, which separates and captures separated gas containing mainly of carbon dioxide from the exhaust gas taken from the line of the exhaust gas equipment; a reaction section 4 including at least a reactor, which is connected to downstream of the separation and capture section 5, contains a reducing agent that generates carbon monoxide through a reduction reaction of carbon dioxide brought into contact with the separated gas, and is capable of separating at least some of oxygen atoms separated from carbon dioxide; a pressure regulating section 7 connected to downstream of the reactor 4 to regulate the pressure of the separated gas supplied to the reactor; and the flow regulating section 6 connected on the upstream of the separation and capture section 5 and regulates the flow rate of the separated gas supplied to the reactor.-
公开(公告)号：US20220259120A1
公开(公告)日：2022-08-18
申请号：US17623077
申请日：2020-07-06
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Noritoshi YAGIHASHI , Haruka NISHIYAMA , Yuki NAKAMA
Abstract: The method of the present invention for producing 1,3-butadiene includes: vaporizing an ethanol feedstock in a vaporizer (104), supplying the feedstock to two or more parallel first reactors (108) to convert ethanol into acetaldehyde in the presence of a first catalyst; supplying a resulting intermediate gas to a second reactor (110) to convert ethanol and acetaldehyde into 1,3-butadiene in the presence of a second catalyst; purifying a resulting crude gas containing 1,3-butadiene by a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), and a second distillation column (118); and supplying an oxygen-containing gas to at least one of the two or more parallel first reactors (108) under specific conditions, while discharging a carbon dioxide-containing gas from the first reactor (108), to thereby regenerate the first catalyst, while continuing the conversion reaction.
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公开(公告)号：US20250050296A1
公开(公告)日：2025-02-13
申请号：US18577411
申请日：2022-07-11
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Yuki NAKAMA , Masaki NAKAMURA , Tsuoshi TONO
Abstract: Provided are a reactor that can operate stably without being subject to restrictions on heating temperature, a gas production apparatus (that is, an industrially advantageous gas production apparatus) having the reactor, a gas production system, and a gas production method. Each of reactors 4a and 4b includes a container 41 having a single internal space 410 through which gas is capable of passing and a reducing agent layer 42 with which the internal space 410 is filled and which is configured by a reducing agent 4R reducing carbon dioxide to carbon monoxide. When the container 41 is cut in a direction orthogonal to a passage direction of the gas, a proportion of a cross-sectional area of the reducing agent layer 42 to a cross-sectional area of the internal space 410 is equal to or greater than 60%.
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公开(公告)号：US20240059569A1
公开(公告)日：2024-02-22
申请号：US18270800
申请日：2021-12-27
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Tsuyoshi TONO , Yuki NAKAMA , Masaki NAKAMURA
CPC classification number: C01B32/40 , B01D53/62 , B01D53/82 , F27D17/00 , B01D2251/602 , B01D2251/202 , B01D2257/504 , B01D2258/0283
Abstract: A gas production device 1 comprises a connection unit 2 for supplying an exhaust gas including carbon dioxide CO2, a reducing gas supply unit 3 that supplies a reducing gas including H2 that reduces a reducing agent 4R that has been brought into an oxidized state by contact with the carbon dioxide CO2, the reducing agent including a metal oxide that generates CO by reducing the carbon dioxide CO2, and a reaction unit 4 provided with a plurality of reactors 4a to 4d connected respectively to the connection unit 2 and the reducing gas supply unit 3, and with the educing agent 4R that is contained in each of the reactors 4a to 4d, in which the reaction unit 4 being capable of switching between the oxidizing gas and the reducing gas to be supplied to each of the reactors 4a to 4d. The plurality of reactors 4a to 4d include first reactors and second reactors to which the reducing gas is supplied when the oxidizing gas is supplied to the first reactors, and the number of the first reactors is two or more and/or the number of the second reactors is two or more.
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公开(公告)号：US20220307096A1
公开(公告)日：2022-09-29
申请号：US17277971
申请日：2020-08-04
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Rasika DASANAYAKE ALUTHGE , Katsuo MATSUZAKA , Kenichi SHINMEI , Yuki NAKAMA
IPC: C21B5/06
Abstract: System and method for producing steel is provided that efficiently reduce carbon dioxide emissions. A steel production system includes: a first gas generating section configured to obtain a first gas by converting carbon monoxide, to carbon dioxide, in a gas containing the carbon dioxide and carbon monoxide; a reducing gas supply section 3 configured to supply a reducing gas containing a reducing substance to reduce a reducing agent, the reducing agent containing metal oxide to reduce carbon dioxide and being oxidized by contact with the carbon dioxide; and a reaction section 4 including a plurality of reactors 4a and 4b, respectively connected to at least one of the first gas generating section and the reducing gas supply section 3, and the reducing agent arranged in the reactors 4a and 4b, the reaction section being capable of switching between the first gas and the reducing gas to be supplied to each of the reactors 4a and 4b, wherein a second gas is configured to be supplied to a blast furnace, the second gas being obtained by contacting the first gas supplied to the reactors 4a and 4b with the reducing agent to convert the carbon dioxide to carbon monoxide and the second gas having the carbon monoxide as a main component.
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Patent Agency Ranking
公开(公告)号：US20240416309A1
公开(公告)日：2024-12-19
申请号：US18577416
申请日：2022-07-11
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Masaki NAKAMURA , Yuki NAKAMA , Tsuyoshi TONO
Abstract: Provided are a gas production apparatus (that is, an industrially advantageous gas production apparatus), a gas production system, and a gas production method that can easily and accurately determine the timing to end a reaction and can operate stably.
A gas production apparatus 1 includes: reactors 4a and 4b each of which includes a container 41 through which a substrate gas is capable of passing and a reducing agent layer (packed bed) 42 with which the container 41 is filled and which includes a metal oxide that exchanges oxygen elements with the substrate gas by an exothermic reaction or an endothermic reaction; and a plurality of temperature sensors 4T1 to 4T4 that are connected to each of the reactors 4a and 4b and measure temperatures of a plurality of measurement points of the packed bed 42 along a passage direction of the substrate gas, respectively. When a length of the packed bed 42 along the passage direction of the substrate gas is H, an interval between adjacent measurement points is equal to or less than H/3.-
公开(公告)号：US20240286101A1
公开(公告)日：2024-08-29
申请号：US18019557
申请日：2020-08-04
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Yuki NAKAMA , Rasika DASANAYAKE ALUTHGE
CPC classification number: B01J8/065 , B01J8/067 , C01B32/40 , B01J2208/00176
Abstract: A gas manufacturing apparatus and a gas manufacturing system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas manufacturing apparatus 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces carbon dioxide. The gas manufacturing apparatus includes a reaction section 4 that includes a plurality of reactors 4a and 4b and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to each of the reactors 4a and 4b, and a reducing agent heating section 12 that adjusts the temperature of the reducing agent when the raw material gas or the reducing gas is brought into contact with the reducing agent. Each of the reactors 4a and 4b includes a plurality of tubular bodies 41 each filled with a reducing agent, and a housing 42 storing the plurality of tubular bodies 41. The reducing agent temperature adjustment section includes the medium to be supplied to the space 43 defined by the plurality of tubular bodies 41 and the housing 42, a transfer apparatus 121 that transfers the medium to the space 43, and a heating apparatus 122 that heats the medium.
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公开(公告)号：US20240017233A1
公开(公告)日：2024-01-18
申请号：US18019560
申请日：2020-08-04
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Yuki NAKAMA , Rasika DASANAYAKE ALUTHGE , Masaki NAKAMURA , Taiyou MORI , Fiona MUKHERJEE
CPC classification number: B01J12/005 , C01B32/40
Abstract: A gas production device and a gas production system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas production device 1 manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces the carbon dioxide. The gas production device 1 includes a connecting portion 2 that supplies the raw material gas, a reducing gas supply section 3 that supplies a reducing gas for reducing the reducing agent oxidized by contact with the carbon dioxide, a reaction section 4 that includes a plurality of reactors 4a and 4b to which the connecting portion 2 and the reducing gas supply section 3 are respectively connected, and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to the respective reactors 4a and 4b, a gas merging section J4 that merges gases after passing through the reactors 4a and 4b to produce a mixed gas, an exhaust gas heating section 10 that heats the exhaust gas before being supplied to the reactors 4a and 4b, and a reducing gas heating section 11 that heats the reducing gas before being supplied to the reactors 4a and 4b.
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公开(公告)号：US20230365413A1
公开(公告)日：2023-11-16
申请号：US18019545
申请日：2020-08-04
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Yuki NAKAMA , Rasika DASANAYAKE ALUTHGE
IPC: C01B32/40
CPC classification number: C01B32/40 , C01B2210/0006
Abstract: A gas manufacturing apparatus and a gas manufacturing system capable of efficiently manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. The gas manufacturing apparatus 1 manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent that reduces the carbon dioxide. The apparatus 1 includes a connecting portion 2 that supplies the raw material gas, a reducing gas supply section 3 that supplies a reducing gas for reducing the reducing agent oxidized by contact with the carbon dioxide, a reaction section 4 that includes a plurality of reactors 4a and 4b to which the connecting portion 2 and the reducing gas supply section 3 are respectively connected, and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to the respective reactors 4a and 4b, and protector (minor component removal section 7) that is provided between the connecting portion 2 and the reactors 4a and 4b and that contains a substance capable of capturing a component that reduces the activity of the reducing agent by contact with the reducing agent, the component being contained in the raw material gas.
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公开(公告)号：US20240010500A1
公开(公告)日：2024-01-11
申请号：US18019554
申请日：2020-08-04
Applicant: SEKISUI CHEMICAL CO., LTD.
Inventor： Yuki NAKAMA , Rasika DASANAYAKE ALUTHGE
IPC: C01B32/40
CPC classification number: C01B32/40 , C01B2210/0045
Abstract: A gas production device and a gas production system capable of efficiently manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. The gas production device 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reductant that reduces the carbon dioxide. The device 1 includes a connecting portion 2 that supplies the raw material gas, a reducing gas supply section 3 that supplies a reducing gas for reducing the reducing agent oxidized by contact with the carbon dioxide, a reaction section 4 that includes a plurality of reactors 4a and 4b to which the connecting portion 2 and the reducing gas supply section 3 are respectively connected, and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to the respective reactors 4a and 4b, and a concentration adjustment section 5 that is provided between the connecting portion 2 and the reactors 4a and 4b, and that adjusts a concentration of oxygen contained in the raw material gas. In the concentration adjustment section 5, the concentration of the oxygen contained in the raw material gas is adjusted to less than 1% by volume.
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