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1. 发明申请

US20230119458A1 PLANT FOR TREATING GAS, PARTICULARLY NATURAL GAS, SUPPLIED BY A TRANSMISSION NETWORK 有权
公开(公告)号：US20230119458A1
公开(公告)日：2023-04-20
申请号：US17961808
申请日：2022-10-07
申请人： GRUPPO SOCIETA' GAS RIMINI S.p.A.
发明人： Gianluca GHELLI , Alessandro BUGLI
IPC分类号： F25J1/02 , F25J1/00
摘要： The present application includes a plant for treating gas, particularly natural gas, supplied by a transmission network. The plant includes a gas inlet connected to the transmission network, a portion of the plant that decompresses, to a predefined outlet pressure, a first fraction of the gas from the inlet, and supplies the decompressed gas at a first outlet. The plant also includes another portion that liquifies a second fraction of the gas from the inlet and supplies the liquefied gas at a second outlet. The portion that carries out the decompressing includes a valve for throttling the first gas fraction, a heat exchanger establishing a thermal exchange relationship between the decompressing portion placed downstream the throttle valve and the portion that liquifies and supplies the gas, another heat exchanger establishing a thermal exchange relationship between the plant portions placed downstream the first heat exchanger and upstream the throttle valve. The portion that liquifies and supplies also includes a valve for throttling the second gas fraction that is downstream the first heat exchanger.

2. 发明申请

US20230113414A1 Dehydrogenation Separation Unit with Mixed Refrigerant Cooling 有权
公开(公告)号：US20230113414A1
公开(公告)日：2023-04-13
申请号：US18063853
申请日：2022-12-09
申请人： Chart Energy & Chemicals, Inc.
发明人： Douglas A. Ducote, JR. , Brent A. Heyrman , Timothy P. Gushanas , Richard Hopewell
IPC分类号： F25J3/06 , C07C7/09 , F25J1/00
摘要： A system for separating olefinic hydrocarbon and hydrogen in an effluent fluid stream from a dehydrogenation reactor includes a heat exchanger that receives and partially condenses the effluent fluid stream so that a mixed phase effluent stream is formed. A primary separation device receives and separates the mixed phase effluent stream into a primary vapor stream and a primary liquid product stream. A heat exchanger receives and partially condenses the primary vapor stream so that a mixed phase primary stream is formed. A secondary separation device receives and separates the mixed phase primary stream into a secondary vapor stream and a secondary liquid product stream. A heat exchanger receives and warms the secondary vapor stream to provide refrigeration for partially condensing the effluent fluid stream and a heat exchanger receives and warms the secondary vapor stream to provide refrigeration for partially condensing the primary vapor stream. A mixed refrigerant compression system provides refrigerant to a heat exchanger to provide refrigeration

3. 发明申请

US20230092115A1 Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature method 有权
公开(公告)号：US20230092115A1
公开(公告)日：2023-03-23
申请号：US17932308
申请日：2022-09-15
申请人： HANGZHOU OXYGEN PLANT GROUP CO., LTD.
发明人： Yisong HAN , Fang Tan , Xudong Peng , Ling Li , Lei Yao , Lijian Lao , Xin Song , Yunyun Jiang , Dongdong Zhao , Xiaoyu Xie
IPC分类号： C25B15/08 , C01B13/02 , B01J23/63 , B01J21/04 , C25B1/04 , F25J1/00
摘要： A device and a method for recovering by-product oxygen from water-electrolysis hydrogen production using a low-temperature method are provided, solving the waste problem of by-product oxygen in the green water-electrolysis hydrogen production system. The device according to the present disclosure comprises an oxygen clarifying system, a pressurizing and heat exchanging system, and a circulating gas compression and expansion refrigeration system. The recovering method according to the present disclosure comprises the following steps: first clarifying and purifying the by-product oxygen from water-electrolysis hydrogen production is to remove hydrogen, carbon monoxide, carbon dioxide, water and other impurities in the oxygen; and then, liquefying, pressurizing and heat exchanging the pure oxygen to obtain the product oxygen and liquid oxygen with required pressure. In the whole process, the cooling capacity is provided by the circulating gas expansion refrigeration system.

4. 发明授权

US11604024B2 Method for producing pure nitrogen from a natural gas stream containing nitrogen 有权
公开(公告)号：US11604024B2
公开(公告)日：2023-03-14
申请号：US16954769
申请日：2018-12-17
申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
发明人： Henri Paradowski , Sébastien Lichtle , Marie Muhr
IPC分类号： F25J1/00 , F25J1/02 , F25J3/02
摘要： A process for liquefying a natural gas feed stream including cooling a feed gas stream to obtain a liquefied natural gas stream; introducing the liquefied natural gas stream into a deazotization column to produce a liquefied natural gas stream and a nitrogen-enriched vapor stream; at least partially condensing at least part of the nitrogen-enriched vapor stream to produce a two-phase stream; introducing the two-phase stream into a phase-separating vessel to produce a first liquid stream and a first nitrogen-enriched gas stream; introducing at least part of the nitrogen-enriched gas stream into a distillation column thereby producing a second nitrogen-enriched stream containing less than 1 mol % of methane and a second liquid stream containing less than 10 mol % of nitrogen; wherein at least part of the liquefied natural gas stream is used to cool the at least part of the nitrogen-enriched vapor stream in said heat exchanger.

5. 发明申请

US20230077286A1 USE OF CO2-CONTAINING GASEOUS EFFLUENT 有权
公开(公告)号：US20230077286A1
公开(公告)日：2023-03-09
申请号：US17799401
申请日：2021-01-26
申请人： L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
发明人： Luc JARRY
IPC分类号： C04B40/02 , B01D53/73 , B28C5/42 , F25J1/00 , F25J1/02 , C01B32/55
摘要： A method for the use of a gaseous effluent containing a CO2 gas fraction and a non-CO2 gas fraction, including at a first location: providing liquid nitrogen at a temperature less than −196° C., and causing the gaseous effluent to contact the liquid nitrogen to as to capture at least part of the CO2 present in the CO2 gas fraction as a mixture of CO2 particles and liquid nitrogen. Conveying at least part of the mixture to a second location, and at the second location, bringing the mixture into contact with one or more ingredients of a wet concrete before and/or during and/or after the wet concrete is prepared by blending the ingredients of the wet concrete in a blender, so that the mixture extracts heat from said one or more ingredients of the wet concrete, and CO2 from the mixture partially carbonates Ca-compounds present in the wet concrete.

6. 发明申请

US20230073208A1 SYSTEM AND METHOD FOR HARNESSING ENERGY FROM A PRESSURIZED GAS FLOW TO PRODUCE LNG 有权
公开(公告)号：US20230073208A1
公开(公告)日：2023-03-09
申请号：US17496217
申请日：2021-10-07
申请人： CNX Resources Corporation
发明人： Kevin Robert Egeland
IPC分类号： F25J1/00 , F25J3/04
摘要： A system includes a heat exchanger including a first inlet for receiving a first pressurized gas stream and a first outlet for outputting a chilled gas stream produced by the heat exchanger cooling the first pressurized gas stream. The system also includes a turbo expander connected to the first outlet of the heat exchanger for receiving the chilled gas stream from the heat exchanger and producing a partially liquified gas stream, the partially liquified gas stream comprising vapors and LNG. The system further includes at least one separator connected to the turbo expander, wherein the partially liquified gas stream is fed into the at least one separator, and the at least one separator separates the vapors from the LNG.

7. 发明申请

US20230068126A1 FLEXIBLE PROCESS AND APPARATUS FOR THE LIQUEFACTION OF OXYGEN 有权
公开(公告)号：US20230068126A1
公开(公告)日：2023-03-02
申请号：US17713710
申请日：2022-04-05
申请人： L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
发明人： Michael A. Turney , Alain Guillard
IPC分类号： F25J1/00 , F28D7/00 , F01D15/00
摘要： A system and method for cooling an oxygen stream by heat exchange with a warming supply nitrogen stream having of a heat exchanger having at least a Zone A and a Zone B, the system having indirect heat exchange between a gaseous oxygen stream, and a high-pressure liquid nitrogen stream split into at least a first portion which passes through a Zone A, and a second portion which passes through a Zone B during a first phase of operation. And a high-pressure liquid nitrogen stream passing through Zone A, thereby producing a high-pressure nitrogen vapor stream, which passes through an expansion turbine, thereby producing an expansion turbine outlet stream which then passes through Zone B, during a second phase of operation, thereby producing a liquid oxygen stream.

8. 发明申请

US20230066063A1 REFRIGERATION-INTEGRATED HYDROCARBON COLLECTION SYSTEM AND METHOD OF OPERATION 有权
公开(公告)号：US20230066063A1
公开(公告)日：2023-03-02
申请号：US17799025
申请日：2021-02-11
申请人： Oxy Low Carbon Ventures, LLC
发明人： John M. REPASKY
IPC分类号： F25J1/02 , C09K8/594 , C10L3/12 , E21B43/34 , E21B21/06 , E21B43/16 , F25J1/00
摘要： A method for recovering associated gaseous hydrocarbons from a well for producing liquid hydrocarbons, the method comprising (i) providing gaseous hydrocarbons from a hydrocarbon well; (ii) providing a cryogenic liquid from an air separation unit or an associated nitrogen liquefaction facility within proximity of the hydrocarbon well; (iii) liquefying the gaseous hydrocarbons at a hydrocarbon liquefaction facility within proximity to the hydrocarbon well to thereby produce a liquefied hydrocarbon gas, where heat associated with the gaseous hydrocarbons is transferred to the cryogenic liquid; and (iv) transferring the liquefied hydrocarbon gas to an air separation unit or nitrogen liquefaction facility.

9. 发明授权

US11592234B2 Hydrocarbon fluid liquefaction system installation and system therefor 有权
公开(公告)号：US11592234B2
公开(公告)日：2023-02-28
申请号：US17032942
申请日：2020-09-25
申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
发明人： Christophe Szamlewski , Catherine Cassellari , Michael Wakim , Thomas Morel
IPC分类号： F25J1/02 , F25J1/00
摘要： One aspect of the invention relates to a hydrocarbons fluid liquefaction system, having a first heat-exchange module having a pre-cooling exchanger having a pre-cooling circuit and a plurality of pre-cooling refrigerant circuits for pre-cooling the feed stream through the circulation of an expanded first mixed-refrigerant stream, and a second heat-exchange module having a liquefaction exchanger having a liquefaction circuit and a liquefaction refrigerant circuit for liquefying the feed stream through the circulation of an expanded second mixed-refrigerant stream, wherein each heat-exchange module has thermally insulating walls and a framework that allows the module to be transported and secured, and allows the first heat-exchange module to be stacked on top of the second heat-exchange module.

10. 发明申请

US20230046041A1 System and Method for the Capture of CO2 and Nitrogen in a Gas Stream 有权
公开(公告)号：US20230046041A1
公开(公告)日：2023-02-16
申请号：US17793101
申请日：2021-01-25
申请人： CAPTICO2 RIGHTS AS
发明人： Oddvar SPJELD
IPC分类号： F25J1/00
摘要： There is provided a nitrogen rejection unit for extracting nitrogen and carbon dioxide from a flue gas, the system comprising: a first container for holding a first volume of the flue gas at a first pressure and a first temperature that is below or equal to the condensation temperature of the carbon dioxide and greater than the condensation temperature of nitrogen; an outlet for removing the carbon dioxide as a liquid from the first container; means for transporting gaseous nitrogen from the first container to a second container and means for cooling the nitrogen such that the second container contains nitrogen at a second temperature that is below or equal to its condensation temperature such that at least some of the nitrogen in the second container is in liquid form; and means for guiding the liquid nitrogen from the second container through or around the first container to cool the material within the first container to the first temperature. There is also provided a system for capturing carbon dioxide in a flue gas, a method for extracting nitrogen from a flue gas, and a method for capturing carbon dioxide in a flue gas.

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