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公开(公告)号：US12078415B2
公开(公告)日：2024-09-03
申请号：US17630433
申请日：2019-07-26
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude , Alain Briglia , Fengjie Xue , Jianwei Cao , Baptiste Fara
发明人： Alain Briglia , Fengjie Xue , Jianwei Cao , Baptiste Fara
IPC分类号： F25J3/04
CPC分类号： F25J3/04412 , F25J3/0409 , F25J3/04296 , F25J3/04387 , F25J2205/02 , F25J2240/10 , F25J2240/12 , F25J2245/40 , F25J2245/42
摘要： An apparatus for the separation of air by cryogenic distillation comprises a column system, a heat exchanger, a turbine, means for sending compressed and purified air at a first pressure to be cooled at the first pressure in the heat exchanger, means for sending a first gaseous stream having a nitrogen content at least that of air to be cooled and liquefied or pseudo liquefied in the heat exchanger to form a liquefied stream, means for sending at least part of the liquefied stream to be warmed and vaporized in the heat exchanger to a first intermediate temperature of the heat exchanger to form a vaporized stream, means for removing the vaporized stream from an intermediate section of the heat exchanger, a conduit for sending the vaporized stream to be expanded, in the turbine to form an expanded stream, a conduit for sending at least part of the expanded stream to the column system, a conduit for sending a second gaseous stream having the same nitrogen content as the first stream to be cooled in the heat exchanger, means for removing at least part of the second gaseous stream from an intermediate section of the heat exchanger at a second intermediate temperature and sending the second gaseous stream to the turbine to be expanded with the vaporized stream.
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公开(公告)号：US11709018B2
公开(公告)日：2023-07-25
申请号：US16958037
申请日：2017-12-25
申请人： Alain Briglia , Remy Kurtz , Eric Day , Huali Xie , Baptiste Fara , L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Alain Briglia , Remy Kurtz , Eric Day , Huali Xie , Baptiste Fara
CPC分类号： F25J3/0409 , F25J3/04206 , F25J3/04303 , F25J3/04412 , F25J2250/40 , F25J2250/50
摘要： A cryogenic air separation setup in a cold box, wherein gaseous oxygen under elevated pressure is produced through hydraulic force caused by the geodetic distance between where liquid oxygen is drawn from the distillation column and where liquid oxygen is vaporized to form gaseous oxygen, such as in an auxiliary evaporator. To increase the vertical distance between the above-mentioned two location, the components are arranged directly below one another in the following sequence: the lower-pressure column, the main condenser evaporator, the higher-pressure column, the subcooler, the main heat exchanger and the auxiliary evaporator). In particular, the main heat-exchanger is positioned with the cold-end on the top to optimize piping expenditure.
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公开(公告)号：US11578916B2
公开(公告)日：2023-02-14
申请号：US16958809
申请日：2017-12-29
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude , Bowei Zhao , Alain Briglia , Fengjie Xue
发明人： Bowei Zhao , Alain Briglia , Fengjie Xue
IPC分类号： F25J3/04
摘要： A method and a device for producing an air product based on cryogenic rectification; after being cooled by a main heat exchanger, raw material air and nitrogen compressed by means of a compressor are sent to a rectification system for low temperature separation. In the rectification system, products such as oxygen and nitrogen are obtained by means of low temperature separation, and oxygen-enriched liquid air is obtained at or near the bottom of a rectification tower. The oxygen-enriched liquid air or liquid-state air in the rectification system is sent out after being raised to a target pressure by means of a low temperature liquid air pump; air products of various pressures can be produced by means of selecting low temperature liquid air pumps with different lifts or by connecting in series different amounts of low temperature liquid air pumps. The present method can avoid the need to arrange additional air compressors, entirely changing the method for producing medium and high pressure air products in a nitrogen circulation process, and importantly can reduce production costs significantly whilst having greater flexibility. In addition, the present method can increase the oxygen extraction rate of an apparatus, thereby improving the energy efficiency level.
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公开(公告)号：US11635254B2
公开(公告)日：2023-04-25
申请号：US16958286
申请日：2017-12-28
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude , Bowei Zhao , Alain Briglia
发明人： Bowei Zhao , Alain Briglia
IPC分类号： F25J3/04
摘要： An air separation apparatus and process, which produces gaseous oxygen and/or nitrogen products at an elevated pressure through internal compression of respective liquid products, are disclosed. Split-core main heat exchangers are employed to warm up product streams generated in an air rectification unit against 1) a main feed air stream in the low-pressure heat exchanger and 2) at least one boosted pressure air stream in the high-pressure exchanger. Because the boosted pressure air stream is at a higher pressure and temperature than the main feed air stream, after separate heat exchange in the split main heat exchangers, the subsidiary waste nitrogen stream exiting the high-pressure heat exchanger is also warmer than the subsidiary waste nitrogen stream exiting the low-pressure heat exchanger. The warmer waste nitrogen stream is fed into the air purification unit for regeneration purposes and the cooler waste nitrogen stream is introduced into the nitrogen water tower to perform cooling duty. The two subsidiary waste nitrogen streams are also connected on the warm side of the main heat exchangers to allow flexible distribution of the flow.
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公开(公告)号：US10571043B2
公开(公告)日：2020-02-25
申请号：US15775282
申请日：2015-11-10
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude , Alain Briglia , Jianwei Li
发明人： Alain Briglia , Jianwei Li
摘要： A press-fit in situ retrofit assembly for a top entry valve and a method thereof are disclosed. The assembly includes an annular conduit (201) including a segment (202) of reduced outside diameter and a shoulder (203) on the exterior surface at the proximal end (204), and is configured to conform with an interior surface (205) of a valve seat (206) at the distal end (207). A valve body extension (208) with an interior annular region (301), and an inlet port (209) fluidically connected to the annular region (301). A gland packing push plate (211) is configured to allow the annular conduit (201) to pass through thereby forming an outlet port (212). And a thrust plate (403) is attached to the thrust screws (401). The thrust plate (403) allows the segment (202) of reduced outside diameter at the proximal end (204) of the annular conduit (201) to pass through, with the thrust plate (403) seating on the shoulder (203). The assembly and the method allow the removal of a portion of the fluid from the cold box for downstream processing or manipulation as desired.
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公开(公告)号：US11988446B2
公开(公告)日：2024-05-21
申请号：US17469823
申请日：2021-09-08
发明人： Alain Briglia , Huali Xie , Yongshun Zhang
IPC分类号： F25J3/04
CPC分类号： F25J3/04448 , F25J3/04084 , F25J3/0409 , F25J3/0423 , F25J3/04436 , F25J3/04454 , F25J2200/08 , F25J2210/40 , F25J2215/42 , F25J2215/50 , F25J2235/02 , F25J2235/42 , F25J2235/50
摘要： A method and apparatus for producing high-purity nitrogen and low-purity oxygen using three-column rectification are provided, in which: nitrogen and oxygen undergo rectification in different columns, with high-purity nitrogen and low-purity oxygen being separated out of air simultaneously, thereby overcoming the shortcomings of conventional low-purity oxygen production equipment, and also reducing equipment investment, lowering energy consumption, increasing product added value, and realizing a circular economy effect.
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公开(公告)号：US11079177B2
公开(公告)日：2021-08-03
申请号：US16474121
申请日：2016-12-30
发明人： Chenxi Gao , Remy Kurtz , Alain Briglia , Jia Ding
摘要： The present invention relates to a skid-mounted cold box and its prefabricated structure and assembly method. Each prefabricated structure includes a framework and a first panel that is used to enclose sides of the framework. Ring beams of two adjacent prefabricated structures are connected through bolts on site. A second panel connected through bolts encloses the gap between ring beams of the two adjacent prefabricated structures from sides. The present invention cancels all field welding seams and omits the field welding and nondestructive testing operations. The crane can be dismissed after the upper prefabricated structure of the cold box is lifted into place and bolts corresponding to columns on ring beams are connected. The present invention guarantees the connection strength of steel structures relying on bolt-based connection between ring beams and the second panel connected through bolts guarantees the airtightness of the cold box. This effectively reduces field assembly work and saves time and cost.
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公开(公告)号：US09976803B2
公开(公告)日：2018-05-22
申请号：US15022314
申请日：2014-09-09
发明人： Alexis Asse , Ingrid Berthaume , Alain Briglia , Richard Dubettier-Grenier , Patrick Le Bot , Jean-Marc Peyron
CPC分类号： F25J3/04412 , F25J3/04024 , F25J3/04054 , F25J3/0409 , F25J3/04175 , F25J3/04218 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04381 , F25J3/04387 , F25J3/04393 , F25J3/04775 , F25J3/04781 , F25J2210/06 , F25J2230/08 , F25J2230/20 , F25J2230/24 , F25J2230/30 , F25J2230/40 , F25J2240/10
摘要： Process for producing gaseous oxygen by cryogenic distillation of air, wherein a portion of the feed air flow is brought to a pressure P1, by means of a first compressor, the suction temperature T0 of which is between 0 and 50° C., the gas at the pressure P1 is cooled, in order to generate an air stream at the pressure P1 and the temperature T1 between 5 and 45° C., a portion of the air compressed in the first compressor undergoes an additional compression step starting from the temperature T1 and pressure P1 to a pressure P2 greater than P1, then is cooled, to the temperature T2 where T2 and T1 differ by less than 10° C.
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9.发明授权公开(公告)号：US09950274B2
公开(公告)日：2018-04-24
申请号：US14413899
申请日：2013-07-12
发明人： Alain Briglia , Arthur Darde , Ludovic Granados , Mathieu Leclerc , Frederick Lockwood , Xavier Traversac
CPC分类号： B01D5/0075 , F25J3/0223 , F25J3/0266 , F25J3/0295 , F25J5/002 , F25J5/005 , F25J2200/02 , F25J2200/70 , F25J2205/04 , F25J2205/20 , F25J2205/40 , F25J2205/60 , F25J2205/66 , F25J2210/04 , F25J2210/70 , F25J2215/04 , F25J2220/80 , F25J2220/82 , F25J2220/84 , F25J2230/30 , F25J2230/32 , F25J2230/80 , F25J2235/80 , F25J2250/02 , F25J2280/20 , F25J2280/40 , F25J2290/44 , F25J2290/90 , Y02C10/12
摘要： In a method for cooling a flow containing at least 35% carbon dioxide and at least 0.2 μg/Nm3 of mercury, the mercury being in liquid and/or gas form, the flow is cooled in a first brazed aluminum plate-fin heat exchanger from a first temperature to a second temperature higher than −38.6° C. to form a cold flow at the second temperature, and the flow cooled to the second temperature is cooled in a second heat exchanger, which is a tube and shell heat exchanger, to a third temperature lower than −38.6° C.
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公开(公告)号：US10006699B2
公开(公告)日：2018-06-26
申请号：US15029107
申请日：2014-10-14
发明人： Alain Briglia , Selim Chouik
IPC分类号： F25J3/02
CPC分类号： F25J3/0233 , F25J3/0209 , F25J3/0257 , F25J2200/06 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2240/40
摘要： The invention relates to a method for denitrogenation of natural gas by distillation, in which natural gas cooled in an exchange line is separated in a system of columns including at least one column, a nitrogen-enriched gas is drawn from one column of the system of columns and is heated in the exchange line, a methane-enriched liquid is drawn from one column of the system of columns, pressurized and vaporized in the exchange line at at least one vaporization pressure, and at least one portion of the cooled natural gas expands in gaseous form in a turbine and is sent to one column of the system of columns in gaseous form.
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