Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 3152. Отображено 104.
05-07-2012 дата публикации

Process for Removing a Composite Coating Present on the Surface of a Gas Cartridge

Номер: US20120171385A1
Автор: Jacques Quintard, Frederic Richard, Charles Truchot, QUINTARD JACQUES, RICHARD FREDERIC, TRUCHOT CHARLES
Принадлежит: L'Air Liquide Societe Anonyne Pour L. Etude Et L'Exploitation des Procedes Georges Claud, L

The invention relates to a method for removing at least part of at least one layer of a composite coating that is formed of fibers and at least one resin that is present on the surface of the body of a gas cartridge. In said method, at least one liquid nitrogen stream is dispensed at a temperature less than 100 DEG C at a pressure of at least 00 bars upon contact with said coating so as to remove at least part of said coating layer present on the body of the gas cartridge.

Подробнее
Номер записи: 1
07-07-1992 дата публикации

Gas distribution adapter and pressure reducer for high pressure gas containers

Номер: US0005127436A1
Автор: Campion; Gerard, Demeulemeester; Alain, Fortuit; Eric
Принадлежит: L'Air Liquide, Societe Anonyme pour L'Etude et L'Exploitation des Procedes Georges Claude, L

The device comprises an assembly intended to be mounted on a closure valve of a high pressure container and comprises a manual control device operating a distribution valve in which the upstream end communicates with the closure valve, a pressure reducer and a safety device against over pressures between the distribution valve and an outlet for connection to a user circuit, as well as a manometer which measures the pressure upstream of the distribution valve. A pusher-rod operates the valve of the closure valve in response to a movement of the distribution valve.

Подробнее
Номер записи: 2
23-04-2015 дата публикации

METAL MODIFIED Y ZEOLITE, ITS PREPARATION AND USE

Номер: US20150111721A1
Автор: Huiping TIAN, Shanqing YU, Zhenbo WANG, TIAN HUIPING, YU SHANQING, WANG ZHENBO
Принадлежит: L

The present invention relates to a metal modified Y zeolite, its preparation and use. Said zeolite contains 1-15 wt % of IVB group metal as oxide and is characterized in that the ratio of the zeolite surface's IVB group metal content to the zeolite interior's IVB group metal content is not higher than 0.2; and/or the ratio of the distorted tetrahedral-coordinated framework aluminum to the tetrahedral-coordinated framework aluminum in the zeolite lattice structure is (0.1-0.8):1.

Подробнее
Номер записи: 3
29-03-2007 дата публикации

Hydrogel preparation and process of manufacture thereof

Номер: US20070068816A1
Автор: David Solomon, Greg Qiao, Alan Kwok
Принадлежит: L

A separation medium comprising a hydrogel preparation having macropores and micropores, wherein the hydrogel preparation is prepared by reacting a first gel component and a second gel component in an aqueous solvent. The first gel component comprises a first monomer, oligomer, polymer, or combination thereof having at least one polymerizable double bond, and a first crosslinker having at least two polymerizable double bonds. The second gel component comprises a second monomer, oligomer, polymer, or combination thereof having at least one pendant functional group per repeat unit, and a second crosslinker having at least two functional groups, each capable of reacting with the at least one pendant functional group of the second monomer, oligomer, polymer, or combination thereof.

Подробнее
Номер записи: 4
12-01-2012 дата публикации

FILLER COUPLING AND CORRESPONDING RECEPTACLE AND FILLING METHOD

Номер: US20120006445A1
Автор: Frenal Antoine, Manscourt Cyril, Pisot Philippe
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A filler coupling comprising an isolation valve that can move relative to a seat between an upstream closing position and a downstream opening position, said isolation valve being moved to its upstream position by a return member, the coupling also comprising a dust-prevention valve placed upstream of the isolation valve, said dust-prevention valve comprising a downstream end and being able to move relative to the body between an upstream closing position and a downstream opening position, said dust-prevention valve being moved to its upstream position by a return member, characterized in that the dust-prevention valve can be moved selectively downstream either: 2. The coupling of claim 1 , wherein the body of the dust-prevention valve is capable of sliding in the circuit and wherein the passageway or passageways are adapted to direct all or substantially all of the fluid stream travelling from upstream to downstream in the internal filler circuit to travel through the body of said dust-prevention valve irrespective of the downstream position of the dust-prevention valve.3. The coupling of claim 1 , wherein the passageway or passageways comprise at least one convergent portion adapted to direct at least a portion of the fluid stream passing through the dust-prevention valve to the central portion of the internal filler circuit.4. The coupling of claim 1 , wherein the passageway or passageways converge and are adapted to guide at least a portion of the fluid stream passing through the dust-prevention valve in a parallel manner into the central portion of the internal filler circuit.5. The coupling of claim 1 , wherein the passageway or passageways converge are adapted to guide at least a portion of the fluid stream passing through the dust-prevention valve to the central portion of the upstream end of the isolation valve.6. The coupling of claim 1 , wherein the passageway or passageways converge and are adapted to guide at least a portion of the fluid stream passing ...

Подробнее
Номер записи: 5
07-06-2012 дата публикации

ROBOTISED DEVICE OF CLEANING OF EXTERNAL STEEL STRUCTURES

Номер: US20120138105A1
Автор: Masia Perales Jordi
Принадлежит: ELIOT SYSTEMS, S.L.

Robotized cleaning device used on ferromagnetic structures that includes two symmetrical cleaning arms () and a caterpillar type tractor () device that moves using magnetic soles over the bands of said caterpillar robot; and where said arms () are jointly attached to the tractor device () by means of a structural profile and are essentially comprised of a cleaning roller (), each of them operated by a reduction motor () coupled to said roller () and a plurality of nozzles. 1100200300301302301302301302101101102. Robotized cleaning device used on ferromagnetic structures and includes two symmetrical cleaning arms ( , ) and a caterpillar type tractor () device that moves using magnetic soles over the bands of said caterpillar robot , including two independent actuating units ( , ); where each of these actuating units ( , ) are joined together by means of a ball joint that allows for transverse rotation with respect to the central body and also joined by a longitudinal hinge that enables each actuating unit to turn transversely as well as longitudinally , and where behind each actuating unit ( , ) , arms () are installed , at least one per actuating unit , and where each arm () is supported by means of respective free rotating wheels () and is characterized in that{'b': 101', '6', '1', '4', '1', '12', '13', '14, 'aligned with each arm () is a profile () that supports the cleaning roller (), each of them operated by a reduction motor () that is coupled to said roller () and a plurality of pipes configured for spraying water () and for spraying chemical product () through a plurality of spray nozzles (), in such a manner that the spraying of chemical product in pure as well as diluted form is sprayed over the ferromagnetic surface.'}2. Device in accordance with where the dosing of the chemical product is carried out using a dosing pump claim 1 , letting the pump run for the proper amount of time and then running the rollers in the proper direction claim 1 , followed by ...

Подробнее
Номер записи: 6
06-09-2012 дата публикации

DEVICE FOR DISPENSING FLUID JETS WITHOUT A ROTATING JOINT

Номер: US20120222708A1
Автор: Quintard Jacques, Richard Frederic, Truchot Charles
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The disclosure relates to a device for dispensing one or more jets of cryogenic fluid, particularly liquid nitrogen, comprising a fluid conveying pipeline feeding one or more fluid dispensing nozzles arranged at the downstream end of said pipeline, and a motor collaborating with the fluid conveying pipeline via a rotary transmission shaft and a transmission mechanism. 114-. (canceled)1687777787. The device as claimed in claim 15 , wherein the anchor () is designed and able to be attached to or detached from said pipeline () so as to hold said pipeline () when the anchor is attached to the pipeline () or free said pipeline when the anchor is detached from the pipeline () and thus allow the length of pipeline () to be set claim 15 , said length being measured between the anchor means () and the downstream end of the pipeline ().17. The device of claim 15 , wherein the first and second axes (XX claim 15 , YY) between them make an angle (α) of between 10 and 40°.1824444247aabab. The device of claim 15 , wherein the transmission shaft () collaborates with the pinion drive () claim 15 , and the pinion drive () collaborates with said support pinion () in such a way as to be capable of transmiting claim 15 , via the pinion drive () claim 15 , the rotational movement of the transmission shaft () to the support pinion () and thus obtain a circular movement of the fluid dispensing nozzle or nozzles arranged at the downstream end of said pipeline ().194432ab. The device of claim 15 , wherein the transmission mechanism ( claim 15 , ) is arranged in a transmission box () that the transmission shaft () enters.204b. The device of claim 15 , wherein the support pinion () is held by pinion-holding elements comprising one or more slippers or rolling bearings.217104104bb. The device of claim 15 , wherein the pipeline () is arranged in a passage () formed through the body of the support pinion () claim 15 , which passage () is situated within the disk formed by the support pinion () ...

Подробнее
Номер записи: 7
21-03-2013 дата публикации

XENON-BASED INHALABLE DRUG FOR PREVENTING ADDICTION RELAPSES IN HUMANS

Номер: US20130071487A1
Автор: BESSIERE Baptiste, Pype Jan
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a gas composition containing xenon gas for use in preventing the relapse of a patient who has been weaned from at least one psychotropic product which resulted in said patient becoming habituated, the xenon being administered to the patient by inhalation. The composition of the invention contains an effective volume proportion of xenon, in particular from 5 to 70% by volume of xenon. DRAWING: FIG. : Nombres de pression sur le levier/session Number of presses on the lever/session Levier respectif inactif Respective inactive lever rechute relapse 111-. (canceled)12. A method of treating a patient using a gaseous composition containing gaseous xenon to prevent a relapse of a patient who has been weaned from at least one psychotropic product which resulted in the human being becoming addicted , said method comprising administering the gaseous composition to the patient by inhalation wherein the gaseous composition contains an effective volume proportion of xenon , lying between at least 10% and less than 50% by volume , and sufficient to prevent said relapse of said patient.13. The method of claim 12 , wherein the gaseous composition contains less than 40% by volume of xenon.14. The method of claim 12 , wherein the gaseous composition contains less than 30% by volume of xenon.15. The method of claim 12 , wherein the gaseous composition further contains oxygen.16. The method of claim 12 , wherein the gaseous composition contains 21% by volume of oxygen.17. The method of claim 12 , wherein the gaseous composition further contains an additional compound selected from the group constituted by NO claim 12 , Ar claim 12 , Kr claim 12 , Ne claim 12 , He claim 12 , Ne claim 12 , NO claim 12 , CO claim 12 , HS and N.18. The method of claim 12 , wherein the psychotropic product is a drug or alcohol.19. The method of claim 12 , wherein the psychotropic product is cocaine claim 12 , nicotine claim 12 , cannabis or amphetamines.20. The method of claim 12 , ...

Подробнее
Номер записи: 8
09-05-2013 дата публикации

STREET LAMP SYSTEM

Номер: US20130113379A1
Автор: De Angelis Berardino, Pennisi Dario
Принадлежит: SPI TECNO S.R.L.

A public lighting system includes at least one street lamp () of the type including a lighting device (), a device for converting renewable energy into electric energy (), and a post switch () for alternately connecting either the lighting device () or the generator () to a power line (). The lighting system further includes a line switch () that switches between a first position, in which the power line () is connected to a power grid (), and a second position, in which the power line () is connected to an inverter () interposed between the line switch () and the power grid (). 11346345. A public lighting system , comprising at least one street lamp () of the type comprising a lighting device () , a device for converting renewable energy into electric energy () , and a post switch () for alternately connecting either the lighting device () or the device for converting renewable energy into electric energy () to a power line () ,{'b': 70', '5', '8', '5', '71', '70', '8, 'characterised in that it further comprises a line switch () adapted to switch between a first position, in which said power line () is connected to a power grid (), and a second position, in which said power line () is connected to an inverter () interposed between said line switch () and said power grid ().'}2. A system according to claim 1 , wherein said device for converting renewable energy into electric energy is a solar panel or an aeolian generator.34045. A system according to claim 1 , further comprising a current generator () adapted to output a current which depends on the power output of said device for converting renewable energy into electric energy () and on the voltage of said power line ().4414404407171. A system according to claim 3 , further comprising a stabiliser circuit () connected between said device for converting renewable energy () and said current generator () in a manner such as to receive at its input a voltage generated by said device for converting renewable energy () ...

Подробнее
Номер записи: 9
15-08-2013 дата публикации

METHOD FOR OPERATING AN ON-SITE MEDICAL GAS PRODUCTION PLANT AND ASSOCIATED PLANT

Номер: US20130205997A1
Автор: Bongers Karsten, Franken Hartmut, Maamar Kais, Neu Peter, SOMMIER Vincent
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a method for operating a plant () for on-site production of medical gas, such as air or oxygen, comprising a main gas line () comprising, in series, a first vessel (A) for storing gas and a second vessel (B) for storing purified gas, and a secondary line () fluidically connected to the main line (), downstream of the first vessel (A) for storing gas, and comprising a third vessel (C) for storing gas, the main gas line () and the secondary line () each supplying at least one gas consumer site (), in particular a network of pipes in a hospital. 1100. An on-site medical gas production plant () , comprising:{'b': '50', 'a gas purification unit () adapted to produce a purified gas from a supply gas,'}{'b': 10', '10, 'a main gas line () supplied with a gas by the gas purification unit () and comprising, in series, a first vessel (A) for storing a less pure gas and a second vessel (B) for storing a purified gas, and'}{'b': 20', '10, 'a secondary line () fluidically connected to the main line (), downstream of the first vessel (A) for storing the less pure gas and comprising a third vessel (C) for storing gas,'}{'b': 1', '2, 'at least one gas analysis device (D; D) arranged so as to determine the level of at least one given impurity in the gas, downstream of the second (B) and third (C) vessels,'}{'b': 1', '10, 'a first solenoid valve (V), arranged on the main gas line () between the first vessel (A) for storing the less pure gas and a second vessel (B) for storing the purified gas,'}{'b': 3', '20, 'a second solenoid valve (V), arranged on the secondary gas line () between the first vessel (A) and the third vessel (C) for storing gas,'}{'b': 2', '10, 'a third solenoid valve (V), arranged on the main gas line () downstream of the second vessel (B) for storing the purified gas,'}{'b': 4', '20, 'a fourth solenoid valve (V), arranged on the secondary gas line () downstream of the third vessel (C) for storing gas, and'}{'b': 4', '1', '4', '1', '2, 'an ...

Подробнее
Номер записи: 10
15-08-2013 дата публикации

ON-SITE MEDICAL GAS PRODUCTION PLANT AND ASSOCIATED OPERATING METHOD

Номер: US20130205999A1
Автор: Bongers Karsten, Franken Hartmut, Maamar Kais, Neu Peter, SOMMIER Vincent
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to an on-site medical gas production plant () comprising a unit () for purifying gas, such as air, a first vessel (A) for storing purified gas, and a main gas line () fluidically connecting the gas purification unit () to the said first storage vessel (A). It furthermore comprises a three-way solenoid valve (VA) arranged on the main gas line () upstream of the first storage vessel (A), and furthermore connected to the atmosphere (at ) via a vent line (), as well as an operating device () which controls at least the three-way solenoid valve (VA), and at least a first gas analysis device (D) of which a first measurement line () is fluidically connected (at ) to the main line (), upstream of the three-way solenoid valve (VA), and which is electrically connected to the said operating device (). 1100. An on-site medical gas production plant () , comprising:{'b': '50', 'a gas purification unit () configured to produce a purified gas from a less pure supply gas source,'}a first vessel (A) for storing the purified gas, and{'b': 10', '50', '50, 'a main gas line () fluidically connecting the gas purification unit () to the first storage vessel (A) so as to supply the said first storage vessel (A) with the purified gas coming from the gas purification unit (),'}wherein the main gas line furthermore comprises:{'b': 10', '50', '12', '11, 'a three-way solenoid valve (VA) arranged on the main gas line () between the gas purification unit () and the first storage vessel (A), and furthermore connected to the atmosphere (at ) via a vent line (),'}{'b': '4', 'an operating device () which controls at least one three-way solenoid valve (VA),'}{'b': 1', '29', '28', '10', '4, 'at least a first gas analysis device (D) of which a first measurement line () is fluidically connected (at ) to the main line (), upstream of the three-way solenoid valve (VA), and which is electrically connected to the operating device (),'}{'b': 4', '1', '10', '11', '1', '10', '10, 'and in ...

Подробнее
Номер записи: 11
15-08-2013 дата публикации

Equipment for Producing Cooling Packs Consisting of a Shell made of a Porous Material Containing an Amount of Carbon-Dioxide Snow Enclosed and Retained Inside the Casing

Номер: US20130206282A1
Автор: ALGOET Jo, Oztas Cemal, Robillard Dominique
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to equipment for producing cool packs containing an amount of carbon-dioxide snow, which includes: a set of at least two cells, each of which is capable of receiving and supporting a shell to be filled; a feeding tube connected, at the upstream portion thereof, to a liquid CO2 source; a set of at least two injection manifolds, each injection manifold being located opposite a cell in which a casing to be filled is to be positioned, and each manifold being connected, at the upstream portion thereof, to the feeding tube, wherein each manifold comprises an injection port at at least one location along the length thereof, the equipment being characterized in that: i) the end of each manifold opposite the feeding tube is formed as a sealed end provided in the form of a substantially rounded tip; j) each injection port located on a manifold is a provided as a threaded opening having a given diameter D and is capable of receiving an injection nozzle by means of screwing; k) said equipment comprises at least two injection nozzles, each injection nozzle being provided in the form of a part that is cylindrical over at least a portion of the length thereof, said cylinder being a hollow cylinder, the threaded outer diameter of which is equal to the diameter D of at least one of the threaded openings of at least one of the manifolds, and the inner diameter d of which is less than D. 17-. (canceled)8. An installation for obtaining cooling blocks made up of a wrapper made of a porous material , containing a mass of carbon dioxide snow enclosed and retained in the wrapper , comprising:a set of at least two cells, each able to accommodate and to hold a wrapper that is to be filled;{'sub': '2', 'a feed tube, connected at its upstream part to a source of liquid CO,'}a set of at least two injection pipes, each injection pipe being situated facing a cell in which a wrapper that is to be filled will be positioned, and each injection pipe being connected at its ...

Подробнее
Номер записи: 12
03-10-2013 дата публикации

Process for the Hydrothermal Carbonization of Biological Material and Use of the Obtained Water for Fermentation

Номер: US20130260431A1
Автор: Bauer Ingo
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The present invention relates to a process for the hydrothermal carbonization of biological material and to the use of the obtained process water for fermentation. In a first process stage, biomass is obtained after a fermentation process with subsequent distillation and/or rectification, and in a second process stage this biomass of the first process stage is converted into a high-carbon product by means of hydrothermal carbonization, wherein the obtained process water of the second process stage is again supplied to the first process stage. 1. A process for the hydrothermal carbonization of biological material , characterized in that in a first process stage after a fermentation process with subsequent distillation and/or rectification biomass is obtained , and in a second process stage this biomass of the first process stage is converted into a high-carbon product by means of hydrothermal carbonization , wherein the obtained process water of the second process stage is again supplied to the first process stage.2. The process according to claim 1 , wherein the fermentation process comprises the following process stepsmash preparationfermentationdistillation and/or rectification; and wherein the biomass obtained from this fermentation process is hydrothermally carbonized in a second process step, whereinthe high-carbon product obtained is separated andthe process water again is at least partly supplied to the mash preparation.3. The process according to claim 1 , the process water obtained from the HTC process contains amino acids or ammonium nitrogen.4. The process according to wherein claim 1 , the biomass is heated at a temperature of 120° C. to 350° C.5. The process according to wherein the biomass is heated over a period of 1 min to 12 hours.6. The process according to wherein high-carbon product combustible gases are obtained in a further post-processing stage.7. The process according to wherein when the biomass has a pH value ≧5 claim 1 , a catalyst is added ...

Подробнее
Номер записи: 13
10-10-2013 дата публикации

CHALCOGENIDE-CONTAINING PRECURSORS, METHODS OF MAKING, AND METHODS OF USING THE SAME FOR THIN FILM DEPOSITION

Номер: US20130267082A1
Автор: Gatineau Julien, ISHII Hana, Minoura Mao
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Disclosed are chalcogenide-containing precursors for use in the manufacture of semiconductor, photovoltaic, LCD-TFT1 or fiat panel type devices. Also disclosed a methods of synthesizing the chalcogenide-containing precursors and vapor deposition methods, preferably thermal ALD, using the chaicogenide-containing precursors to form chaicogenide-containing films. 1. A method for the deposition of a chalcogenide-containing film , comprising the steps of:{'sub': 2', '2', '2', '2', '2', '2', '2', '3', '2', '3', '2', '3', '2', '2', '2', '2', '2', '2', '2', '2', '3', '2', '3', '2', '3', '2', '3', '3', '3', '3', '3', '3', '3', '3', '3, 'a) introducing into a reactor containing at least one substrate a vapor of at least one chalcogenide-containing precursor selected from the group consisting of MeGe(TeMe), MeGe(TetBu), tBuGe(TetBu), MeGe(TeSiMe), (MeSi)Ge(TeSiMe), MeSi(TeMe), MeSi(TetBu), tBuSi(TetBu), MeSi(TeSiMe), (MeSi)Si(TeSiMe), MeGe(TeMe), MeGe(TetBu), (SiMe)Ge(TeSiMe), MeSi(TeMe), MeSi(TetBu)and (SiMe)Si(TeSiMe); and'}b) depositing at least part of the at least one chalcogenide-containing precursor onto the at least one substrate to form a chalcogenide-containing film on at least one surface of the at least one substrate using a vapor deposition process.2. The method of claim 1 , wherein the at least one chalcogenide-containing precursor is (MeTe)GeMe.3. The method of claim 1 , further comprising introducing one or more doping elements to the chalcogenide-containing film claim 1 , wherein the one or more doping elements are selected from the group consisting of silicon claim 1 , nitrogen claim 1 , and oxygen.4. The method of claim 1 , further comprising introducing a reactant into the reactor claim 1 , wherein the reactant is selected from the group consisting of H claim 1 , NH claim 1 , amines claim 1 , imines claim 1 , hydrazines claim 1 , SiH claim 1 , SiH claim 1 , SiH claim 1 , BH claim 1 , hydrogen-containing fluids claim 1 , oxygen claim 1 , ozone claim 1 , ...

Подробнее
Номер записи: 14
07-11-2013 дата публикации

Installation and Method for Producing Liquid Helium

Номер: US20130291585A1
Автор: Bernhardt Jean-Marc, Bonneton Michel, Fauve Eric, Grabie Veronique, Grillot David
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a method and an installation for producing liquid helium, said installation comprising a cooling/liquefaction device comprising a working circuit that subjects a helium-enriched working fluid to a thermodynamic cycle in order to produce liquid helium, said circuit comprising at least one working fluid compression body and a plurality of heat exchangers. The installation also comprises a plurality of fluid recovery lines having respective upstream ends to be selectively connected to respective reservoirs, and a first collection line having an upstream end connected to the recovery lines and a downstream end connected to a receiving body that can supply the working circuit with a working fluid. The installation is characterized in that it comprises at least one second and one third collection line that each have an upstream end connected to the recovery lines and a downstream end connected to the working circuit, the upstream ends of the second and third collection lines being connected at separate determined positions of the working circuit, that respectively correspond to separate temperature levels of the working fluid in the working circuit. 110-. (canceled)11. A plant for the production of liquid helium comprising:a refrigeration/liquefaction device, the refrigeration/liquefaction device comprising a working circuit in which a working fluid enriched in helium is subjected to a thermodynamic cycle in order to produce liquid helium, the circuit comprising at least one compressor to compress the working fluid and several heat exchangers in order to cool/reheat the fluid to predetermined temperature levels during the cycle;several recovery pipes for recovery of fluid having respective upstream ends which can be selectively joined to respective tanks which are mobile in order to transfer fluid from the tanks to the refrigeration/liquefaction device so that the working circuit is of the open type and selectively collects fluid external to the ...

Подробнее
Номер записи: 15
12-12-2013 дата публикации

APPARATUS FOR TRACKING COMPLIANCE WITH A TREATMENT FOR OBSTRUCTIVE SLEEP APNEA

Номер: US20130331726A1
Автор: Weber Claude
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to an apparatus () for tracking a treatment for obstructive sleep apnea, including a gas passage () and a Venturi tube () having a cylindrical inlet () and outlet (), said Venturi tube () being axially arranged in said gas passage (), a first pressure sensor (), and a second pressure sensor (). The diameters (D) of the inlet () and outlet () of the Venturi tube () are between 10 and 25 mm. The Venturi tube () includes, arranged in series between said inlet () and outlet (), a convergent portion () having the shape of an arc (), a cylindrical neck (), the diameter of which is smaller than the diameter (D) of the inlet (), and a divergent portion () characterized by an angle of divergence (α) of between 5° and 15°. The invention also relates to equipment for treating sleep apnea, which includes a pressurized-gas source () connected to a breathing mask () via a gas duct (), as well as to an apparatus () according to the invention, which is arranged between said gas source () and said breathing mask (). 124101640421610101102. An apparatus ( , ) for monitoring a treatment for obstructive sleep apnea comprising a gas passage () and a venturi tube () having a cylindrical inlet () and outlet () , said venturi tube () being arranged axially in said gas passage () , a first pressure sensor () and a second pressure sensor () , characterized in that{'b': 1', '40', '42', '16, 'the diameters (D) of the inlet () and the outlet () of the venturi tube () are between 10 and 25 mm, and'}{'b': 16', '40', '42', '44', '46', '48', '50', '1', '40', '52, 'the venturi tube () comprises, arranged in succession between said inlet () and outlet (), a convergent portion () in the form of a circular arc (, ), a cylindrical neck () with a diameter smaller than the diameter (D) of the inlet (), and a divergent portion () characterized by an angle of divergence (α) of between 5° and 15°,'}{'b': 2', '50', '16', '2', '50', '16, 'and in which the diameter (D) of the neck () of the ...

Подробнее
Номер записи: 16
30-01-2014 дата публикации

METHOD AND APPARATUS FOR LIQUEFYING A GAS OR COOLING A FEED GAS AT SUPERCRITICAL PRESSURE

Номер: US20140026611A1
Автор: Darde Arthur, Traversac Xavier
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a method for liquefying a feed gas or cooling a feed gas at supercritical pressure, in which the feed gas mixed with a cycle gas is condensed or cooled in order to form a supercritical gas or liquid at the first pressure, the liquid at the first pressure is cooled in a first heat exchanger (E), the cooled liquid is removed from the first exchanger and expanded up to a second pressure that is lower than the first pressure in order to form an expanded flow, at least one portion of the expanded flow is cooled in a second heat exchanger, the expanded flow is removed from the second heat exchanger (E), said flow is split into at least two portions, including a first portion and a second portion, the first portion of the expanded flow constituting the liquefied product, the second portion and preferably a third portion being vaporized in the second heat exchanger and the thus-formed at least one cycle gas is then mixed with the feed gas and compressed in a compressor, before or after being mixed with the feed gas. 114-. (canceled)15. A method for liquefying a feed gas or cooling a feed gas at supercritical pressure , wherein the feed gas mixed with a cycle gas is condensed to form a liquid at a first pressure or the feed gas mixed with a cycle gas is cooled to form a cooled gas at the first pressure if the latter is supercritical , the liquid or cooled gas is cooled at the first pressure in a first heat exchanger , the cooled liquid or the cooled gas is removed from the first exchanger and is expanded to a second pressure lower than the first pressure to form an expanded flow , at least a portion of the expanded flow is cooled in a second heat exchanger , the expanded flow is removed from the second heat exchanger , it is divided into at least two portions including a first portion and a second portion , the first portion of the expanded flow forms the liquefied product , the second portion vaporises in the second heat exchanger and the at least ...

Подробнее
Номер записи: 17
06-02-2014 дата публикации

GAS FILLING AND DISPENSING DEVICE, VESSEL WITH SUCH DEVICE, AND OPERATIONAL CIRCUIT

Номер: US20140034156A1
Автор: MORETTI Alessandro, Pisot Philippe
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a gas filling and dispensing device that comprises a body to be positioned in the opening of a pressurized gas storage tank, a gas-tapping circuit extending between a first upstream end to be connected to the inside of the tank and a second downstream end to be connected to a gas user, wherein the tapping circuit includes a first insulation valve, the device further including a safety valve subjected to the tank pressure for blocking or selectively opening a passage for the gas from the tank towards a discharge area based on the temperature and/or pressure of the gas in the tank relative to at least one predetermined threshold, characterized in that the discharge area of the safety valve is located upstream from the first insulation valve. 1. A gas filling and dispensing device comprising a body adapted for operable fluid connection to an orifice of a pressurized-gas storage reservoir , a gas withdrawing circuit running between an upstream first end adapted for operable fluid connection to an inside of the reservoir and a downstream second end adapted to be connected to a user of the gas , the withdrawing circuit comprising a first isolating valve , the device further comprising a safety relief valve configured to be subjected to the pressure in the reservoir , wherein the safety relief valve is adapted to close or open a passage for the gas from the reservoir to a discharge zone according to the temperature and/or the pressure of the gas in the reservoir with respect to at least one set threshold , characterized in that the discharge zone of the safety relief valve is situated upstream of the first isolating valve.2. The filling device of claim 1 , wherein the withdrawing circuit comprises a pressure regulator claim 1 , a low-pressure chamber and the first isolating valve which are arranged in series in that order from the upstream to downstream end claim 1 , the discharge zone of the safety relief valve being situated downstream of the ...

Подробнее
Номер записи: 18
04-01-2018 дата публикации

METALLOPOLYIMIDE PRECURSOR FIBERS FOR AGING-RESISTANT CARBON MOLECULAR SIEVE HOLLOW FIBER MEMBRANES WITH ENHANCED SELECTIVITY

Номер: US20180001269A1
Автор: CHEVREL Henri, Gagliano Robert A., HASSE David J., KOSURI Madhava R., MA Canghai, SWAIDAN Raja
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex. 1. A method for producing a metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity , comprising the steps of:ejecting a bore fluid from a circular opening in a hollow fiber spinneret;preparing a spin dope composition comprising a polyimide dissolved in a solvent and transition metal cations complexed with electronegative regions of the polyimide;extruding the spin dope composition from an annular opening that surrounds the circular opening;allowing the extruded core spin dope composition to traverse an air or inert gas gap to produce a nascent hollow fiber;allowing the nascent hollow fiber to travel through a coagulation bath of a non-solvent where still-dissolved portions of the polyimide in the nascent hollow fiber are solidified via phase inversion; anddrying the solidified hollow fiber.2. The method of claim 1 , wherein the complexed cations are not substantially removed from the solidified hollow fiber by the coagulation bath.3. The method of claim 2 , further comprising the step of washing the solidified hollow fiber with a wash liquid so as to remove solvent from the solidified hollow fiber claim 2 , wherein the complexed cations are not substantially removed from the solidified hollow fiber by the wash liquid.4. The method of claim 1 , further comprising the step of washing the solidified hollow fiber with a wash liquid so as to remove solvent from the solidified hollow fiber claim 1 , wherein the ...

Подробнее
Номер записи: 19
04-01-2018 дата публикации

METALLOPOLYIMIDE PRECURSOR FIBERS FOR AGING-RESISTANT CARBON MOLECULAR SIEVE HOLLOW FIBER MEMBRANES WITH ENHANCED SELECTIVITY

Номер: US20180001271A1
Автор: CHEVREL Henri, Gagliano Robert A., HASSE David J., KOSURI Madhava R., MA Canghai, SWAIDAN Raja
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex. 1. A method for producing a metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity , comprising the steps of:ejecting a bore fluid from a circular opening in a hollow fiber spinneret;extruding a core spin dope composition from an annular opening that surrounds the circular opening, the core spin dope composition comprising a polyimide dissolved in a solvent;allowing the extruded core spin dope composition to traverse a gap containing a gas to produce a nascent hollow fiber;allowing the nascent hollow fiber to travel through a coagulation bath of a cations of a transition metal dissolved in a non-solvent in which still-dissolved portions of the polyimide in the nascent hollow fiber are solidified via phase inversion, wherein the cations diffuse into the solidified fiber where they complex with electronegative regions of the polyimide; anddrying the solidified hollow fiber.2. The method of claim 1 , further comprising the step of washing the solidified hollow fiber with a wash liquid so as to remove solvent from the solidified hollow fiber claim 1 , wherein the complexed cations are not substantially removed from the solidified hollow fiber by the wash liquid.3. The method of claim 1 , wherein the transition metal is selected from the group consisting of Sc claim 1 , Ti claim 1 , Va claim 1 , Cr claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Zn claim 1 , Y claim 1 , Zr claim 1 , Nb ...

Подробнее
Номер записи: 20
03-01-2019 дата публикации

COMPOSITE CARBON MOLECULAR SIEVE MEMBRANES HAVING ANTI-SUBSTRUCTURE COLLAPSE PARTICLES LOADED IN A CORE THEREOF

Номер: US20190001276A1
Автор: KOSURI Madhava R., KRATZER Dean W., MA Canghai
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A carbon molecular sieve (CMS) membrane is made by pyrolyzing, to a peak pyrolysis temperature T, a hollow fiber membrane having a polymeric sheath surrounding a polymeric core, anti-substructure collapse particles present in pores formed in the polymeric core help prevent collapse of pores formed in the hollow fiber membrane before pyrolysis. The anti-substructure collapse particles are made of a material or materials that either: i) have a glass transition temperature Thigher than T, ii) have a melting point higher than T, or ii) are completely thermally decomposed during said pyrolysis step at a temperature less than T. The anti-substructure collapse particles are not soluble in a solvent used for dissolution of the polymeric material of the core. 1. A method for producing a CMS membrane fiber , comprising the steps of:forming a composite precursor polymeric hollow fiber having a sheath covering a hollow core, the core being solidified from a core composition comprising a polymeric core material dissolved in a core solvent and anti-substructure collapse particles insoluble in the core solvent, the anti-substructure collapse particles being disposed within pores formed in the polymeric core material, the sheath being solidified from a sheath composition comprising a polymeric sheath material dissolved in a sheath solvent, the anti-substructure collapse particles having an average size of less than one micron; and{'sub': 'P', 'claim-text': [{'sub': G', 'P, 'i) have a glass transition temperature Thigher than T,'}, {'sub': 'P', 'ii) have a melting point higher than T, or'}, {'sub': 'P', 'ii) are completely thermally decomposed during said pyrolysis step at a temperature less than T.'}], 'pyrolyzing the composite precursor polymeric hollow fiber up to a peak pyrolysis temperature T, wherein the anti-substructure collapse particles are made of a material or materials that either2. The method of claim 1 , wherein the material or materials of the anti-substructure ...

Подробнее
Номер записи: 21
05-01-2017 дата публикации

METHOD FOR OPERATING A TOP GAS RECYCLING BLAST FURNACE INSTALLATION

Номер: US20170002434A1
Автор: Grant Michael
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Method of operating a blast furnace installation comprising a top gas recycle blast furnace and hot stones, whereby a hydrocarbon containing fuel is transformed into a transformed gas stream consisting mainly of CO and Hand substantially devoid of hydrocarbon, whereby a low-heating-value gaseous fuel is generated comprising a mixture of said transformed gas with a portion of the CO-rich tail gas obtained by decarbonatation of the blast furnace gas, and whereby said low-heating-value fuel is used to heat the hot furnace gas is heated before being injected into the blast-furnace. 113-. (canceled)14. A method of operating a blast furnace installation comprising a top gas recycle blast furnace generating blast furnace gas , comprising the steps of:{'sub': 2', '2, 'decarbonating the blast furnace gas so as to obtain a CO-enriched rich tail gas stream and a decarbonated blast furnace gas stream containing not more than 3% vol CO;'}{'sub': '2', 'transforming a hydrocarbon-containing gaseous fuel not generated by the blast furnace to generate a transformed gas stream containing at least 70% vol of CO and Hin total and at most 7% vol of hydrocarbon;'}{'sup': '3', 'producing a low-heating-value gaseous fuel having a heating value of from 2.8 to 7.0 MJ/Nmand containing (i) a portion of the tail gas stream and (ii) at least a first portion of the transformed gas stream and using said low-heating-value gaseous fuel for heating hot stoves;'}heating at least 70% vol of the decarbonated blast furnace gas stream in the hot stoves to a temperature between 700° C. and 1300° C. to generate heated decarbonated blast furnace gas; andinjecting the heated decarbonated blast furnace gas into the blast furnace.15. The method of claim 14 , wherein the hydrocarbon-containing gaseous fuel contains natural gas and/or coke oven gas.16. The method of claim 14 , wherein partial combustion of the hydrocarbon-containing gaseous fuel is used to generate the transformed gas stream.17. The method of ...

Подробнее
Номер записи: 22
04-01-2018 дата публикации

APPARATUS FOR THE PRODUCTION OF AIR GASES BY THE CRYOGENIC SEPARATION OF AIR WITH VARIABLE LIQUID PRODUCTION AND POWER USAGE

Номер: US20180003432A1
Автор: KONG Paul, PHAM-HUY Minh, YIP Wendy
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An apparatus for the production of air gases by the cryogenic separation of air can include a cold box having a heat exchanger, and a system of columns; a pressure monitoring device; and a controller. The cold box can be configured to receive a purified and compressed air stream under conditions effective for cryogenically separating the air stream to form an air gas product. The apparatus may also include means for transferring the air gas product from the cold box to an air gas pipeline. The pressure monitoring device is configured to monitor the pipeline pressure, and the controller is configured to determine whether to operate in a power savings mode or a variable liquid production mode. By operating the apparatus in a dynamic fashion, a power savings and/or additional high value cryogenic liquids can be realized in instances in which the pipeline pressure deviates from its highest value. 1. An apparatus for the production of air gases by the cryogenic separation of air , the apparatus comprising:{'sub': 'o', 'a) a main air compressor configured to compress air to a pressure suitable for the cryogenic rectification of air to produce a compressed humid air stream, the compressed humid air stream having a first pressure P;'}b) a front end purification system configured to purify the compressed humid air stream of water and carbon dioxide to produce a dry air stream having reduced amounts of water and carbon dioxide as compared to the compressed humid air stream;{'sub': 'B1', 'c) a booster compressor in fluid communication with the front end purification system, wherein the booster compressor is configured to compress a first portion of the dry air stream to form a boosted air stream, the boosted air stream having a first boosted pressure P;'}d) a cold box comprising a main heat exchanger, a system of columns having a double column composed of a lower pressure column and a higher pressure column, a condenser disposed at a bottom portion of the lower pressure column ...

Подробнее
Номер записи: 23
04-01-2018 дата публикации

METHOD FOR THE PRODUCTION OF AIR GASES BY THE CRYOGENIC SEPARATION OF AIR

Номер: US20180003433A1
Автор: KONG Paul, PHAM-HUY Minh, YIP Wendy
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the production of air gases by the cryogenic separation of air can include the steps of sending a purified and compressed air stream to a cold box under conditions effective for cryogenically separating the air stream into an oxygen product and nitrogen using a system of columns, wherein the purified and compressed air stream is at a feed pressure when entering the system of columns; withdrawing the oxygen product at a product pressure; delivering the oxygen product at a delivery pressure to an oxygen pipeline, wherein the oxygen pipeline has a pipeline pressure; wherein during the second mode of operation, the method can include monitoring the pipeline pressure; and reducing the difference between the pipeline pressure and the delivery pressure. By operating the method in a dynamic fashion, a power savings can be realized in instances in which the pipeline pressure deviates from its highest value. 1. A method for the production of air gases by the cryogenic separation of air , the method comprising the steps of:{'sub': 'o', 'a) compressing air to a pressure suitable for the cryogenic rectification of air to produce a compressed humid air stream, the compressed humid air stream having a first pressure P;'}b) purifying the compressed humid air stream of water and carbon dioxide within a front end purification system to produce a dry air stream having reduced amounts of water and carbon dioxide as compared to the compressed humid air stream;{'sub': 'B1', 'c) compressing a first portion of the dry air stream in a booster compressor to form a boosted air stream, the boosted air stream having a first boosted pressure P;'}d) introducing a second portion of the dry air stream and the boosted air stream to a cold box under conditions effective to separate air to form an air gas product, wherein the air gas product is selected from the group consisting of oxygen, nitrogen, and combinations thereof;{'sub': 'P1', 'e) withdrawing the air gas product from the cold ...

Подробнее
Номер записи: 24
04-01-2018 дата публикации

APPARATUS FOR OPERATING AN AIR SEPARATION PLANT

Номер: US20180003435A1
Автор: KONG Paul, PHAM-HUY Minh, YIP Wendy
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An apparatus for the production of air gases with variable liquid production by the cryogenic separation of air can include a cold box having a heat exchanger, and a system of columns; a pressure monitoring device; and a controller. The cold box can be configured to receive a purified and compressed air stream under conditions effective for cryogenically separating the air stream to form an air gas product. The apparatus may also include means for transferring the air gas product from the cold box to an air gas pipeline. The pressure monitoring device is configured to monitor the pipeline pressure, and the controller is configured to adjust the product pressure of the air gas product coming out of the cold box based upon the pipeline pressure and to further adjust liquid production from the cold box based on the adjusted product pressure. 1. An apparatus for the production of air gases by the cryogenic separation of air , the apparatus comprising:{'sub': 'o', 'a) a main air compressor configured to compress air to a pressure suitable for the cryogenic rectification of air to produce a compressed humid air stream, the compressed humid air stream having a first pressure P;'}b) a front end purification system configured to purify the compressed humid air stream of water and carbon dioxide to produce a dry air stream having reduced amounts of water and carbon dioxide as compared to the compressed humid air stream;{'sub': 'B1', 'c) a booster compressor in fluid communication with the front end purification system, wherein the booster compressor is configured to compress a first portion of the dry air stream to form a boosted air stream, the boosted air stream having a first boosted pressure P;'}d) a cold box comprising a main heat exchanger, a system of columns having a double column composed of a lower pressure column and a higher pressure column, a condenser disposed at a bottom portion of the lower pressure column, and a liquid oxygen pump, wherein the cold box is ...

Подробнее
Номер записи: 25
04-01-2018 дата публикации

METHOD FOR OPERATING AN AIR SEPARATION PLANT

Номер: US20180003437A1
Автор: KONG Paul, PHAM-HUY Minh, YIP Wendy
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the production of air gases with variable liquid production by the cryogenic separation of air can include the steps of sending a purified and compressed air stream to a cold box under conditions effective for cryogenically separating the air stream into an oxygen product and nitrogen using a system of columns, wherein the purified and compressed air stream is at a feed pressure when entering the system of columns; withdrawing the oxygen product at a product pressure; delivering the oxygen product at a delivery pressure to an oxygen pipeline, wherein the oxygen pipeline has a pipeline pressure; wherein during the second mode of operation, the method can include monitoring the pipeline pressure; reducing the difference between the pipeline pressure and the delivery pressure; and adjusting liquid production from the cold box. By operating the method in a dynamic fashion, additional liquid production can be realized in instances in which the pipeline pressure deviates from its highest value. 1. A method for the production of air gases with variable liquid production by the cryogenic separation of air , the method comprising the steps of:{'sub': 'o', 'a) compressing air to a pressure suitable for the cryogenic rectification of air to produce a compressed humid air stream, the compressed humid air stream having a first pressure P;'}b) purifying the compressed humid air stream of water and carbon dioxide within a front end purification system to produce a dry air stream having reduced amounts of water and carbon dioxide as compared to the compressed humid air stream;{'sub': 'B1', 'c) compressing a first portion of the dry air stream in a booster compressor to form a boosted air stream, the boosted air stream having a first boosted pressure P;'}d) introducing a second portion of the dry air stream and the boosted air stream to a cold box under conditions effective to separate air to form an air gas product, wherein the air gas product is selected from the ...

Подробнее
Номер записи: 26
07-01-2021 дата публикации

DEVICE AND METHOD FOR FILLING TANKS

Номер: US20210003253A1
Автор: DEBESOMBES Louis, FAIRY Vincent, THIEU Anh Thao
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Device and method for filling pressurized-gas tanks, comprising a fluid transfer circuit provided with an upstream end intended to be connected to a source of gas and at least two parallel downstream ends intended to be connected to distinct tanks that are to be filled, the transfer circuit comprising a temperature regulating member for regulating the temperature of the gas transferred from the source towards the downstream ends, the gas temperature regulating member being positioned in the transfer circuit upstream of the at least two downstream ends, which means to say that the gas temperature regulating member is common to the at least two downstream ends, characterized in that the at least two downstream ends of the circuit each comprise a respective control member for controlling the flow rate and/or the pressure of the transferred gas and configured to control the flow rate and/or the pressure in each of the downstream ends independently. 1. A device for filling pressurized-gas tanks , comprising an electronic controller and a fluid transfer circuit that comprises an upstream end intended to be connected to a source of gas and at least two parallel downstream ends adapted and configured to be connected to distinct tanks that are to be filled , wherein:the transfer circuit further comprises a temperature regulating member for regulating a temperature of the gas that is transferred from the source towards the downstream ends;the gas temperature regulating member is positioned in the transfer circuit upstream of the at least two downstream ends such that the gas temperature regulating member is common to the at least two downstream ends;each of the at least two downstream ends of the circuit comprises a respective pressure-control and/or flow rate-control valve that is adapted to independently control a pressure or flow rate of the transferred gas in a respective one of the downstream ends; andthe electronic controller is adapted and configured to control each of ...

Подробнее
Номер записи: 27
27-01-2022 дата публикации

CRYOGENIC FLUID STORAGE TANK

Номер: US20220026028A1
Автор: BEUNEKEN Olivier, GENESTE Didier, POINTEAU Regis
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a tank for storing a two-phase cryogenic mixture of liquid and gas, comprising a first casing, at least one drawing pipe, a tank filling circuit, the tank comprising a sensor assembly measuring the pressure in the first casing, the tank comprising a pipe for pressurizing the internal casing, comprising an upstream end connected to the lower end of the first casing and a downstream end connected to the upper part of the first casing, the pressurization line comprising at least one regulating valve and a heater, in particular a vaporization heat exchanger. The invention is characterized in that the regulating valve is configured to automatically maintain the pressure in the first casing at a minimum value by ensuring, when the pressure in the first casing is lower than said first value, a circulation of liquid taken from the first casing in the heater and a re-injection of said heated fluid into the first casing. 114-. (canceled)16. The tank of claim 15 , wherein the regulating valve of the pressurization pipe is sensitive to the pressure measured by the set of one or more sensor(s) claim 15 , said regulating valve comprises at least one movable element closing or opening a passage for the fluid in the pressurization pipe claim 15 , said movable element is opened or closed according to the pressure difference between a setting force corresponding to a minimum pressure value and the pressure measured by the set of one or more sensor(s).17. The tank of claim 15 , wherein the regulating valve of the pressurization pipe comprises at least one electrically controlled valve and an electronic device for controlling the controlled valve configured to control the opening and the closing of the valve as a function of the minimum pressure value and the pressure measured by the set of one or more sensor(s).18. The tank of claim 15 , wherein the vaporized gas drawing-off pipe comprises a second upstream end connected to the lower part of the first casing ...

Подробнее
Номер записи: 28
14-01-2021 дата публикации

PROCESS AND PLANT FOR THE PRODUCTION OF LIQUID HYDROGEN

Номер: US20210010751A1
Автор: Allidieres Laurent, BARJHOUX Pierre, MARLIER Pierre-Germain, RIGOUT Gregoire
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Process and plant for the production of liquid hydrogen with a liquefier that has a variable cooling power dependent on the electrical power consumed. The liquefier is supplied with electricity by a first source of electricity at least one additional source of electricity that provides an intermittent or variable amount of electricity over time. Liquid hydrogen is produced at first thermodynamic conditions when the liquefier is supplied with a predetermined nominal electrical energy level and produced at subcooled conditions, with respect to the first thermodynamic conditions, when electricity supplied to the liquefier exceeds the nominal level. 1. A process for production of liquid hydrogen though use of a liquefier fed by a source of gaseous hydrogen , the liquefier being of the electric type and having a variable cooling power dependent on the electrical power consumed , the liquefier being supplied with electricity by a first source of electricity and being connected to at least one additional source of electricity that provides an amount of electricity which is intermittent or variable over time , wherein liquid hydrogen is produced by the liquefier at first thermodynamic conditions when the liquefier is supplied with electricity at a predetermined nominal electrical energy level and , when the liquefier is supplied with electricity at an energy level exceeding the said nominal level , the hydrogen produced by the liquefier is subcooled with respect to the first thermodynamic conditions.2. The process of claim 1 , wherein claim 1 , when the liquefier is supplied with electricity at the nominal electrical energy level claim 1 , the liquid hydrogen produced by the liquefier is in a saturated state.3. The process of claim 1 , wherein claim 1 , when the liquefier is supplied with electricity at an energy level exceeding the nominal level claim 1 , the liquid hydrogen produced by the liquefier is subcooled with respect to its saturated state.4. The process of claim ...

Подробнее
Номер записи: 29
17-04-2014 дата публикации

Method of Obtaining Carbon Dioxide from a Carbon Dioxide-Containing Gas Mixture

Номер: US20140102298A1
Автор: HASSE David J., JR. Edgar S., KULKARNI Sudhir S., SANDERS, Terrien Paul, Tranier Jean-Pierre
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Disclosed are methods of obtaining carbon dioxide from a CO-containing gas mixture. The methods combine the benefits of gas membrane separation with cryogenic temperatures. 2. The method of claim 1 , wherein each Ris a molecular segment of formula (g) and each Rconsists of formula (D).3. The method of claim 1 , wherein each Rconsists of formula (C).4. The method of claim 1 , wherein each Ris a molecular segment of formula (a) and each Rconsists of formula (C).5. The method of claim 1 , wherein each Ris a molecular segment of formula (a) and each Rconsists of formula (D).6. The method of claim 1 , wherein Rconsists of molecular segments of formulae (a) and (c) in a 4:1 ratio and each Rconsists of formula (C).7. The method of claim 1 , wherein:{'sub': '1', 'Ris of formula (a);'}{'sub': 1', '2', '3, 'X, X, X, and Xare hydrogen; and'}{'sub': '2', 'Ris of formula (D).'}8. The method of claim 1 , wherein:{'sub': '1', 'Ris of formula (r);'}{'sub': 1', '2, 'X, X, and Xare methyl groups;'}{'sub': '2', 'Ris of formula (C); and'}Z is of formula (L).9. The method of claim 1 , wherein:{'sub': '1', 'Rconsists of molecular segments of formulae (a) and (c) in a 4:1 ratio;'}{'sub': '2', 'Ris of formula (C); and'}Z is of formula (L).10. The method of claim 1 , wherein the polymeric material is BPDA-ppODA polymerized from 3 claim 1 ,3′ claim 1 ,4 claim 1 ,4′-Biphenyltetracarboxylic dianhydride and 4 claim 1 ,4′oxydianiline11. The method of claim 1 , wherein the polymeric material is BTDA-ppODA polymerized from 3 claim 1 ,3′ claim 1 ,4 claim 1 ,4′-Benzophenone tetracarboxylic dianhydride and 4 claim 1 ,4′oxydianiline.12. The method of claim 1 , wherein the polymeric material is PMDA-MDA polymerized from pyromellitic dianhydride and methylene dianiline.13. The method of claim 1 , wherein the polymeric material is a polyimide polymerized from pyromellitic dianhydride and 4 claim 1 ,4′-oxydianiline.14. The method of claim 1 , wherein the polymeric material is 6FDA/BPDA+DAM polymerized ...

Подробнее
Номер записи: 30
16-01-2020 дата публикации

METHOD AND APPARATUS FOR REGULATING A PLURALITY OF FLUIDS

Номер: US20200019194A1
Автор: EL AZIZ Madiha, PIVARD Alban
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

In a method for regulating at least two fluids, a fluid feed flow Q is divided into n parts, the sum of the n parts being equal to Q, each of the n parts is sent to one of n processing units, each of the n processing units produces at least one processed flow, at least one processed flow of a first of the processing units is regulated by control means in order to keep the flow thereof constant at a value Q in nominal operation, at least one processed flow of a second of the processing units is regulated by control means in order to keep the pressure thereof constant in nominal operation and, in the event of a reduction of the feed flow Q, in reduced feed operation, if, preferably only if, the flow of the flow processed in the second processing unit of step v) drops and thus reaches a first minimum flow threshold, a processed flow in the first processing unit is regulated such that the processed flow having a value Q in nominal operation is reduced to a value less than Q 111-. (canceled)12. A method for regulating at least two fluids , the method comprising the steps of:i) dividing a fluid supply flow Q into n parts, the sum of the n parts being equal to Q;ii) sending each of the n parts to one of n treatment units;iii) producing at least one treated flow in each of the n treatment units;{'b': '1', 'iv) regulating at least one treated flow from a first treatment unit in order to keep a flow rate of the at least one treated flow constant at a value Q in nominal operation;'}v) regulating at least one treated flow from a second treatment unit in order to keep a pressure of the at least one treated flow constant in nominal operation;{'b': 1', '1, 'wherein, in the event of a reduction in the fluid supply flow Q, in reduced-supply operation, if the flow rate of the treated flow in the second treatment unit of step v) drops and reaches a first minimum flow rate threshold, a flow treated in the first treatment unit is regulated so that the treated flow which in nominal ...

Подробнее
Номер записи: 31
26-01-2017 дата публикации

COLUMN FOR SEPARATING AIR BY CRYOGENIC DISTILLATION, AIR SEPARATION DEVICE COMPRISING SUCH A COLUMN AND METHOD FOR PRODUCING SUCH A COLUMN

Номер: US20170023296A1
Автор: CAVAGNE Patrice, De Cayeux Olivier, HAIK-BERAUD Natacha, SCHMITT Nathalie P.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a column for separating air by means of cryogenic distillation, said column comprising a shell and at least four distillation segments, including at least a first intermediate distillation segment of the low-pressure column, which is surrounded by an auxiliary shell around which a space is defined that is divided into a lower section and an upper section along the radius of the column, the intermediate segment(s) being located in an intermediate part of the low-pressure column, the capacity of the first intermediate segment being greater than that of at least one adjacent segment, and an opening being disposed in the shell between two adjacent segments, which opening can be sealed if the column is to form part of an argon production device. 16-. (canceled)7. A column for separating air by cryogenic distillation having one shell and at least four distillation segments , each segment comprising a stack of cross-corrugated structured packing blocks , each block comprising a packet of rectangular corrugated plates , at least a first intermediate distillation segment of the column being surrounded by an auxiliary shell in turn surrounded by a space divided into a lower section and an upper section in the radial direction of the column , the intermediate segment or segments being positioned in an intermediate portion of the column , wherein the capacity of the first intermediate segment is greater than the capacity of at least one adjacent segment , or the capacity of the other segments of the column , and in that the column includes second and third intermediate distillation segments arranged such that , when in use , the second intermediate segment is above the first intermediate segment and the third intermediate segment is above the second intermediate segment , the column further comprising a first opening in the space between the first and second intermediate segments , a second opening in the space between the second and third intermediate ...

Подробнее
Номер записи: 32
24-01-2019 дата публикации

METHOD AND FACILITY FOR MANUFACTURING A FIBERGLASS MATERIAL

Номер: US20190023599A1
Автор: BEASSE Gregoire, Jarry Luc, Joumani Youssef
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a method and facility for manufacturing a fiberglass material, in which melted glass is produced in a melting furnace heated via combustion of a fuel with an oxygen-rich oxidant. The fumes generated are used to preheat a combustion reagent in two steps: a first step in which air is heated via heat exchange with the fumes, and a second step in which the combustion reagent is preheated via heat exchange with the hot air. The air is then used in the method for converting the melted glass into a fiberglass material. 113-. (canceled)14. A process for the manufacture of a glass fiber product in which molten glass is converted into a glass fiber product by:spinning the molten glass into at least one stream;attenuating the at least one stream into one or more filaments;collecting the filament or filaments; and optionally one or more of the following stages: sizing the filament or filaments upstream of their collection, drying the filament or filaments, application of adhesive to the filament or filaments before or after their collection, followed by a crosslinking of the adhesive-treated collective filament or filaments, and texturing the filament or filaments or strands containing them, wherein:in which process the molten glass is produced in a melting furnace heated by combustion of a fuel with a rich oxidizer having an oxygen content of 80 vol % to 100 vol %, with generation of heat and flue gases, said generated flue gases being discharged from the melting furnace at a temperature between 1000° C. and 1600° C.;air is heated by heat exchange with discharged flue gases in a heat-exchange assembly with hot air being obtained,a reactant chosen from rich oxidizers and gaseous fuels is preheated by heat exchange with the hot air in the heat-exchange assembly with the production of preheated reactant and of moderated air at a temperature between 200° C. and 500° C.,the preheated reactant is used as combustion reactant in the furnace, andmoderated air ...

Подробнее
Номер записи: 33
31-01-2019 дата публикации

New bacteriophage strains against proteus mirabilis and use thereof

Номер: US20190032022A1
Автор: Agnieszka MASZEWSKA, Antoni ROZALSKI
Принадлежит: UNIWERSYTET LÓDZKI

The invention covers new bacteriophage strains specific against bacteria belonging to the species Proteus mirabilis, deposited with the Polish Collection of Microorganisms (PCM) under the access numbers: F/00084 (72APm5211), F/00085 (39APmC32), F/00086 (65APm2833), for use for use in the prophylaxis and therapy. In accordance with the invention the above mentioned bacteriophage strains, in form of complete particles of the single bacteriophage strain, in form of bacteriophage lysates, optionally in form of purified bacteriophage proteins, in particular lytic enzymes that degrade the bacterial cell wall and enzymes that decompose bacterial extracellular polysaccharides, are intended for use in therapy as anti-bacterial agents, in particular against bacteria of the species Proteus mirabilis, especially the drug- and multidrug-resistant strains of the species, advantageously in urinary tract infections. In accordance with the invention the above mentioned bacteriophage strains, in form of a cocktail comprising two or more active bacteriophages, in form of lysates of two or more active bacteriophages, optionally in form of purified bacteriophage proteins of two or more active bacteriophages, especially lytic enzymes that degrade the bacterial cell wall and enzymes that decompose bacterial extracellular polysaccharides, are intended for use in therapy as anti-bacterial agents, in particular against bacteria of the species Proteus mirabilis, especially the drug- and multidrug-resistant strains of the species, advantageously in urinary tract infections. The manufactured preparations or compositions are in gel or liquid form and are intended for use in combination or in composition with other anti-bacterial agent, or with other medicaments, wherein the liquid form may be used spray, compresses, rinse/wash liquid preparation or wet compresses.

Подробнее
Номер записи: 34
30-01-2020 дата публикации

METHOD FOR MEASURING THE QUANTITY OF GAS INTRODUCED INTO A RESERVOIR AND FILLING STATION

Номер: US20200032959A1
Автор: FRANCOIS Thibaut
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A measured quantity of gas is introduced into a gas reservoir via a filling station including a flow meter. The quantity of gas transferred by the filling station to the reservoir is measured by the flow meter. The measured quantity of gas is reduced or increased by a predetermined corrective amount to yield a corrected gas quantity. 110- (canceled)11. A method for measuring the quantity of gas introduced into a gas tank via a filling station provided with a filling pipe comprising an upstream end connected to at least one source of pressurized gas and a downstream end connected to a tank that is to be filled , the filling pipe comprising a flow meter and at least one downstream isolation valve positioned between the flow meter and the downstream end of the filling pipe , the method comprising the steps of:transferring gas from the source to a tank while the downstream isolation valve is open;interrupting the transfer of gas with closure of the downstream valve;measuring, using the flow meter, the quantity of gas transferred during said transferring step; and i) the final pressure in the tank or in the filling pipe at the end of the transfer step is measured or estimated, the determined corrective quantity is a quantity which varies according to the final pressure, the determined corrective quantity is a predetermined quantity that is fixed according to a pressure interval at the end of the transfer step, the determined corrective quantity is between 11 and 5 grams when the pressure in the tank that is to be filled or in the filling pipe is between 850 and 700 bar, the determined corrective quantity is between 8 and 2.5 grams when the pressure in the tank that is to be filled or in the filling pipe is between 700 and 400 bar, the determined corrective quantity is between 6 and 1 grams when the pressure in the tank that is to be filled or in the filling pipe is between 400 and 200 bar, or', 'ii) alternatively, the filling pipe comprises, downstream of the downstream ...

Подробнее
Номер записи: 35
30-01-2020 дата публикации

PROCESS AND APPARATUS FOR THE CRYOGENIC SEPARATION OF A MIXTURE OF CARBON MONOXIDE, HYDROGEN AND METHANE FOR THE PRODUCTION OF CH4

Номер: US20200033055A1
Автор: CORTALE Manon, Demolliens Bertrand, Hernandez Antoine, TEIXEIRA Guillaume
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

In a process of the separation of a mixture of carbon monoxide, hydrogen and methane, the mixture is sent to a scrubbing column, a bottom liquid withdrawn at the bottom of the scrubbing column is depleted in hydrogen with respect to the mixture and is sent to a stripping column, a bottom liquid from the stripping column is sent to a separation column and a liquid enriched in methane withdrawn from the bottom of the separation column is vaporized in order to form a final product. 1. A process for the separation of a mixture of carbon monoxide , hydrogen and methane , the process comprising the steps of:i) sending the mixture or a fluid derived from this mixture, after cooling to a cryogenic temperature in a heat exchanger, to a scrubbing column fed at the top with a liquid containing at least 80 mol % of carbon monoxide or to at least one phase separator;ii) withdrawing a bottom liquid at the bottom of the scrubbing column or of the phase separator or of one of the phase separators is depleted in hydrogen with respect to the mixture and is sent to a stripping column;iii) withdrawing a gas at the top of the stripping column;iv) sending a bottom liquid from the stripping column to a separation column; andv) withdrawing a liquid enriched in methane from the bottom of the separation column and vaporized in the heat exchanger in order to form a final product,wherein the vaporized liquid enriched in methane is compressed in a compressor and a part of the compressed gas is returned at the bottom of the separation column for separation therein.2. The process according to claim 1 , in which the part of the compressed gas is at a lower pressure than that of the compressed final product.3. The process according to claim 1 , in which the scrubbing column is fed at the top with a liquid originating from a condenser where at least a part of the gas from the top of the scrubbing column or originating from the top of the separation column or originating from a cycle for ...

Подробнее
Номер записи: 36
08-02-2018 дата публикации

DEVICE FOR MEASURING FEMUR DISPLACEMENT AND METHOD OF MAKING ORTHOPEDIC MEASUREMENTS DURING A SURGICAL PROCEDURE TO CORRECT A DAMAGED HIP

Номер: US20180036093A1
Автор: KOBIERSKA Agnieszka, NIEWOLA Adam, PANASIUK Michal, PODSEDKOWSKI Leszek, SZANIEWSKI Mateusz
Принадлежит: POLITECHNIKA LÓDZKA

A device for measuring femur bone displacement during total hip arthroplasty includes a base element immovably mounted to the pelvis and a measurement arm, detachably mounted to the base element via a support, and the measurement arm is fitted with a microprocessor computing system with a display screen. The measurement arm includes at least two movable links, serially connected with each other and with support by rotary joints with at least one (and preferably three) degrees of freedom, whereby both movable links are fitted with an accelerometer (preferably a three-axis accelerometer) and/or a magnetic field sensor and/or a gyroscope, preferably forming together an integrated acceleration, magnetic field and gyroscopic sensor unit. 118.-. (canceled)19. A device for measuring femur bone displacement during a surgical procedure to correct a damaged hip , especially during a total hip arthroplasty , includes a base element immovably mounted to the first measured element , and a measurement arm , detachably mounted to the base element via a support , whereby the measurement arm is fitted at least with an accelerometer located in the support and connected with a computing system unit , wherein the measurement arm includes at least two movable links , connected serially to each other and to support by means of rotational joints of at least one degrees of freedom , and both movable links are fitted with an accelerometer and/or a magnetic field sensor and/or a gyroscopic sensor.20. The device according to claim 19 , wherein the measurement arm support is connected with first movable link by means of a Cardan joint or a spherical joint claim 19 , and the first movable link is connected to second movable link by means of revolute claim 19 , Cardan or spherical joints claim 19 , and the first movable link is fitted with microprocessor computing system with a display screen.21. The device according to claim 19 , wherein it is fitted with marker mounted to the femur by means of ...

Подробнее
Номер записи: 37
12-02-2015 дата публикации

LIQUID PREPARATION FOR THE REDUCTION OF FREE OXIGEN AND THE PRESERVATION OF WATER

Номер: US20150041411A1
Автор: Beilfuss Wolfgang, Gradtke Ralf, Knopf Jennifer, STREEK Michael
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A preparation including a) at least one N-formal and b) at least one dialkylhydroxylamine. The preparation is preferably formulated as a concentrate. The preparation can be used (in particular in the form of the concentrate) for the reduction of free oxygen and the preservation of water, and also correspondingly additivated water. The mixture of N-formals with dialkylhydroxylamine is not only outstandingly compatible, but considerably improves the activity of dialkylhydroxylamines as oxygen scavengers. 1. Liquid preparation which comprisesa) at least one N-formal and{'sub': 1', '10, 'b) at least one dialkylhydroxylamine of the formula RR′NOH, wherein R and R′ independently are selected from linear, branched and cyclic Cto Calkyl groups.'}2. Preparation according to claim 1 , characterized in that the N-formal is selected from N claim 1 ,N′-methylenebis(5-methyloxazolidine) claim 1 , α claim 1 ,α′ claim 1 ,α″-trimethyl-1 claim 1 ,3 claim 1 ,5-triazine-1 claim 1 ,3 claim 1 ,5-(2H claim 1 ,4H claim 1 ,6H)triethanol claim 1 , 4 claim 1 ,4-dimethyloxazolidine claim 1 , dimethylolurea claim 1 , 5-ethyl-3 claim 1 ,7-dioxa-1-azabicyclo[3.3.0]octane claim 1 , 2-(hydroxymethylamino)ethanol claim 1 , methylenebistetrahydro-1 claim 1 ,3-bisoxazine claim 1 , N-methylolchloroacetamide claim 1 , bis(hydroxymethyl)-5 claim 1 ,5-dimethylhydantoin claim 1 , diazolidinylurea claim 1 , sodium hydroxymethylglycinate claim 1 , 3 claim 1 ,4 claim 1 ,4-trimethyloxazolidine claim 1 , 2 claim 1 ,2′ claim 1 ,2″-(hexahydro-1 claim 1 ,3 claim 1 ,5-triazine-1 claim 1 ,3 claim 1 ,5-triyl)triethanol and tetrahydro-1 claim 1 ,3 claim 1 ,4 claim 1 ,6-tetrakis(hydroxymethyl)imidazo[4 claim 1 ,5-d]imidzole-2 claim 1 ,5-(1H claim 1 ,3H)dione claim 1 , wherein N claim 1 ,N′-methylenebis(5-methyloxazolidine) is preferred.3. Preparation according to claim 1 , characterized in that the dialkylhydroxylamine is diethylhydroxylamine.4. Preparation according to claim 1 , characterized in that it additionally ...

Подробнее
Номер записи: 38
09-02-2017 дата публикации

METHOD FOR THE INTEGRATION OF A NITROGEN LIQUEFIER AND LETDOWN OF NATURAL GAS FOR THE PRODUCTION OF LIQUID NITROGEN AND LOWER PRESSURE NATURAL GAS

Номер: US20170038133A1
Автор: FARGES Oriane, Guillard Alain, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method describing the integration of a nitrogen liquefier and letdown of natural gas for the production of liquid nitrogen and lower pressure natural gas is provided. The method may include: providing a nitrogen liquefier having a nitrogen refrigeration cycle, wherein the nitrogen liquefier comprises a nitrogen compressor, a nitrogen recycle compressor, a heat exchanger, and at least a first turbine booster and introducing a nitrogen gas stream to the nitrogen liquefier under conditions effective for liquefying the nitrogen to produce a liquid nitrogen product. The refrigeration needed to liquefy the nitrogen is provided for by the nitrogen refrigeration cycle and letdown of a high pressure natural gas stream. 1. A method for the integration of a nitrogen liquefier and letdown of natural gas for the production liquid nitrogen (“LIN”) , the method comprising the steps of:a) providing a nitrogen liquefier having a nitrogen refrigeration cycle, wherein the nitrogen liquefier comprises a nitrogen recycle compressor, a heat exchanger, and a first turbine booster;b) introducing a nitrogen gas stream to the nitrogen liquefier under conditions effective for liquefying the nitrogen to produce a liquid nitrogen product;{'sub': 'H', 'c) withdrawing a natural gas stream from a source operating at a first pressure P;'}d) purifying the natural gas stream in a purification unit to produce a purified natural gas;e) partially cooling the purified natural gas in the heat exchanger;withdrawing the partially cooled natural gas from an intermediate section of the heat exchanger;{'sub': M', 'M', 'H, 'g) expanding the partially cooled natural gas to a medium pressure Pin a natural gas expansion turbine to form a cold natural gas stream, wherein the medium pressure Pis at a pressure lower than the first pressure P; and'}h) warming the cold natural gas stream in the heat exchanger by heat exchange against nitrogen from the nitrogen refrigeration cycle to produce a warm natural gas stream ...

Подробнее
Номер записи: 39
09-02-2017 дата публикации

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS

Номер: US20170038134A1
Автор: FARGES Oriane, Guillard Alain, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the production of liquefied natural gas is provided. The method may include providing a high pressure natural gas stream, splitting the high pressure natural gas stream into a first portion and a second portion, and liquefying the first portion of the high pressure natural gas stream to produce an LNG stream. The refrigeration needed for cooling and liquefaction of the natural gas can be provided by a closed nitrogen refrigeration cycle and letdown of the second portion of the high pressure natural gas stream. 1. A method for the production of liquefied natural gas (“LNG”) , the method comprising the steps of:a) providing a nitrogen refrigeration cycle, wherein the nitrogen refrigeration cycle is configured to provide refrigeration within a heat exchanger;b) purifying a first natural gas stream in a first purification unit to remove a first set of impurities to produce a purified first natural gas stream;{'sub': 'H', 'c) cooling and liquefying the first natural gas stream in the heat exchanger using the refrigeration from the nitrogen refrigeration cycle to produce an LNG stream, wherein the first natural gas stream has an LNG refrigeration requirement, wherein the LNG stream is liquefied at a first pressure P;'}d) purifying a second natural gas stream in a second purification unit to remove a second set of impurities to produce a purified second natural gas stream;e) partially cooling the second natural gas stream in the heat exchanger;f) withdrawing the partially cooled second natural gas stream from an intermediate section of the heat exchanger;{'sub': M', 'M', 'H, 'g) expanding the partially cooled second natural gas stream to a medium pressure Pin a natural gas expansion turbine to form a cold natural gas stream, wherein the medium pressure Pis at a pressure lower than the first pressure P; and'}h) warming the cold natural gas stream in the heat exchanger by heat exchange against the first natural gas stream to produce a warm natural gas stream at ...

Подробнее
Номер записи: 40
09-02-2017 дата публикации

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND LIQUID NITROGEN

Номер: US20170038135A1
Автор: FARGES Oriane, Guillard Alain, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the production of liquefied natural gas and liquid nitrogen is provided. The method may include providing a high pressure natural gas stream, splitting the high pressure natural gas stream into a first portion and a second portion, and liquefying the first portion of the high pressure natural gas stream to produce an LNG stream. The refrigeration needed for cooling and liquefaction of the natural gas and liquefaction of the nitrogen can be provided by a nitrogen refrigeration cycle and letdown of the second portion of the high pressure natural gas stream. 1. A method for the production of liquefied natural gas (“LNG”) and liquid nitrogen (“LIN”) , the method comprising the steps of:a) providing a nitrogen refrigeration cycle, wherein the nitrogen refrigeration cycle is configured to provide refrigeration within a heat exchanger, wherein a portion of the nitrogen within the nitrogen refrigeration cycle is withdrawn and liquefied yielding a liquid nitrogen product, wherein at least an equal portion of gaseous nitrogen is introduced to the nitrogen refrigeration cycle as is withdrawn;b) purifying a first natural gas stream in a first purification unit to remove a first set of impurities to produce a purified first natural gas stream;{'sub': 'H', 'c) cooling and liquefying the first natural gas stream in the heat exchanger using the refrigeration from the nitrogen refrigeration cycle to produce an LNG stream, wherein the first natural gas stream has an LNG refrigeration requirement, wherein the LNG stream is liquefied at a first pressure P;'}d) purifying a second natural gas stream in a second purification unit to remove a second set of impurities to produce a purified second natural gas stream;e) partially cooling the second natural gas stream in the heat exchanger;f) withdrawing the partially cooled second natural gas stream from an intermediate section of the heat exchanger;{'sub': M', 'M', 'H, 'g) expanding the partially cooled second natural gas stream ...

Подробнее
Номер записи: 41
09-02-2017 дата публикации

METHOD FOR THE INTEGRATION OF A NITROGEN LIQUEFIER AND LIQUEFACTION OF NATURAL GAS FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND LIQUID NITROGEN

Номер: US20170038136A1
Автор: FARGES Oriane, Guillard Alain, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the integration of a nitrogen liquefier and liquefaction of natural gas for the production of liquefied natural gas and liquid nitrogen is provided. The method may include providing a nitrogen liquefaction unit and providing a natural gas liquefaction unit. Liquefaction of the nitrogen can be achieved via a nitrogen refrigeration cycle within the nitrogen liquefaction unit. Liquefaction of the natural gas can be achieved through the use of natural gas letdown and a second nitrogen refrigeration cycle. The two liquefaction units can be integrated via a common nitrogen recycle compressor, thereby providing significant capital savings. 1. A method for the integration of a nitrogen liquefier and natural gas liquefier for the production of liquefied natural gas (“LNG”) and liquid nitrogen (“LIN”) , the method comprising the steps of:a) providing a nitrogen liquefier having a first nitrogen refrigeration cycle, wherein the nitrogen liquefier comprises a turbine, a booster and a plurality of coolers, wherein the first nitrogen refrigeration cycle is configured to provide refrigeration within a first heat exchanger;b) providing a second nitrogen refrigeration cycle, wherein the second nitrogen refrigeration cycle comprises a second turbine, a second booster and a plurality of second coolers, wherein the second nitrogen refrigeration cycle is configured to provide refrigeration within a second heat exchanger;c) purifying a first natural gas stream in a first purification unit to remove a first set of impurities to produce a purified first natural gas stream;{'sub': 'H', 'd) cooling and liquefying the first natural gas stream in the second heat exchanger using the refrigeration from the nitrogen refrigeration cycle to produce an LNG stream, wherein the first natural gas stream has an LNG refrigeration requirement, wherein the LNG stream is liquefied at a first pressure P;'}e) purifying a second natural gas stream in a second purification unit to remove a second ...

Подробнее
Номер записи: 42
09-02-2017 дата публикации

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS

Номер: US20170038139A1
Автор: Guillard Alain, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the production of liquefied natural gas (LNG) without the use of externally provided electricity is provided The method may include the steps of: providing a transportable apparatus, wherein the transportable apparatus comprises a housing, a heat exchanger, a phase separator, a first refrigeration supply, and a second refrigeration supply, wherein the first refrigeration supply and the second refrigeration supply are configured to provide refrigeration within the heat exchanger; introducing a natural gas stream into the transportable apparatus at a first pressure under conditions effective for producing an LNG stream; withdrawing the LNG stream from the transportable apparatus; and withdrawing a warm natural gas stream from the transportable apparatus, wherein the warm natural gas stream is at a second pressure, wherein the second pressure is lower than the first pressure. 1. A method for the production of liquefied natural gas (“LNG”) using a transportable apparatus , the method comprising the steps of:providing a transportable apparatus, wherein the transportable apparatus comprises a housing, a heat exchanger, a phase separator, a first refrigeration supply, and a second refrigeration supply, wherein the first refrigeration supply and the second refrigeration supply are configured to provide refrigeration within the heat exchanger;introducing a natural gas stream into the transportable apparatus at a first pressure under conditions effective for producing an LNG stream;withdrawing the LNG stream from the transportable apparatus; andwithdrawing a warm natural gas stream from the transportable apparatus, wherein the warm natural gas stream is at a second pressure, wherein the second pressure is lower than the first pressure.2. The method as claimed in claim 1 , wherein the first refrigeration supply comprises a first expansion valve claim 1 , a first LNG inlet disposed on a cold end of the heat exchanger claim 1 , and a first natural gas outlet ...

Подробнее
Номер записи: 43
08-02-2018 дата публикации

INTEGRATION OF INDUSTRIAL GAS SITE WITH LIQUID HYDROGEN PRODUCTION

Номер: US20180038638A1
Автор: ANDREEV Kirill, FRANC Pierre-Etienne, Guillard Alain, Roesch Alexander, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The method for producing liquid hydrogen can include the steps of: introducing pressurized natural gas from a high pressure natural gas pipeline to a gas processing unit under conditions effective for producing a purified hydrogen stream; and introducing the purified hydrogen stream to a hydrogen liquefaction unit under conditions effective to produce a liquid hydrogen stream, wherein the hydrogen liquefaction unit provides a warm temperature cooling and a cold temperature cooling to the purified hydrogen stream, wherein the warm temperature cooling is provided by utilizing letdown energy of a pressurized stream selected from the group consisting of a nitrogen stream sourced from a nitrogen pipeline, a natural gas stream sourced from the high pressure natural gas pipeline, an air gas sourced from an air separation unit, and combinations thereof, wherein the cold temperature is provided by utilizing letdown energy of the purified hydrogen stream. 1. A method for liquefying a pressurized hydrogen gas originating from a pressure swing adsorber unit , the method comprising the steps of:withdrawing a hydrogen containing gas from a methanol production unit;introducing the hydrogen containing gas to a pressure swing adsorber (PSA) unit under conditions effective for purifying the hydrogen containing gas to produce a purified hydrogen stream;sending the purified hydrogen gas to a hydrogen liquefaction unit under conditions effective for the liquefaction of hydrogen thereby producing a liquefied hydrogen stream,wherein the hydrogen liquefaction unit is configured to provide a first refrigeration source and a second refrigeration source, wherein the first refrigeration source provides refrigeration using expansion of a high pressure nitrogen stream, wherein the second refrigeration source provides refrigeration using expansion of a high pressure hydrogen gas stream to produce a warm hydrogen gas stream,wherein the high pressure hydrogen gas stream is derived from a hydrogen ...

Подробнее
Номер записи: 44
08-02-2018 дата публикации

ROBUST RECOVERY OF NATURAL GAS LETDOWN ENERGY FOR SMALL SCALE LIQUEFIED NATURAL GAS PRODUCTION

Номер: US20180038639A1
Автор: de BESOMBES Louis, FARGES Oriane, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for liquefaction of natural gas using refrigeration from a combination of sources including a refrigeration cycle and letdown energy of natural gas is provided. The natural gas to be liquefied (LNG) is boosted in pressure using a booster that is powered by expansion of a portion of the natural gas flow from the booster through a first natural gas turbine. A second flow of natural gas is expanded in a second natural gas turbine, and the resulting expanded stream, along with the natural gas expanded in the first natural gas turbine, are warmed against the natural gas to be liquefied. The flow rate of the natural gas in the second natural gas turbine is decoupled from the booster, thereby allowing for variation in flow rates and pressures while maintaining a constant production of LNG. 1. A method for the liquefaction of natural gas , the method comprising the steps of:a) withdrawing a pressurized natural gas stream from a natural gas pipeline;b) boosting a first portion of the pressurized natural gas stream to a higher pressure using a first natural gas booster to produce a boosted pressurized natural gas stream;c) expanding a first portion of the boosted pressurized natural gas stream in a first natural gas turbine to form a first expanded natural gas stream;d) warming the first expanded natural gas stream in a heat exchanger against a second portion of the boosted pressurized natural gas stream to produce a first warmed natural gas stream;e) expanding a second portion of the pressurized natural gas stream in a second natural gas turbine to form a second expanded natural gas stream;f) warming the second expanded natural gas stream in the heat exchanger against the second portion of the boosted pressurized natural gas stream to produce a second warmed natural gas stream; andg) liquefying the second portion of the boosted pressurized natural gas stream in the heat exchanger using refrigeration provided from a refrigeration cycle to form a liquefied natural gas ...

Подробнее
Номер записи: 45
08-02-2018 дата публикации

METHOD FOR LIQUEFACTION OF INDUSTRIAL GAS BY INTEGRATION OF METHANOL PLANT AND AIR SEPARATION UNIT

Номер: US20180038641A1
Автор: Guillard Alain, Roesch Alexander, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the liquefaction of an industrial gas by integration of a methanol plant and an air separation unit (ASU) is provided. The method can include the steps of: (a) providing a pressurized natural gas stream, a pressurized purge gas stream originating from a methanol plant, and a pressurized air gas stream comprising an air gas originating from the ASU; (b) expanding three different pressurized gases to produce three cooled streams, wherein the three different pressurized gases are the pressurized natural gas stream, the pressurized purge gas stream, and the pressurized air gas stream; and (c) liquefying the industrial gas in a liquefaction unit against the three cooled streams to produce a liquefied industrial gas stream. The industrial gas to be liquefied is selected from the group consisting of a first portion of the pressurized natural gas stream, a nitrogen gas stream, hydrogen and combinations thereof. 1. A method for the liquefaction of an industrial gas selected from the group consisting of natural gas , nitrogen , hydrogen and combinations thereof , the method comprising the steps of:a) withdrawing a pressurized natural gas stream from a natural gas pipeline;b) removing carbon dioxide and water from the pressurized natural gas stream;c) expanding the pressurized natural gas stream to form an expanded natural gas stream and warming the expanded natural gas stream in a first portion of a heat exchanger against the industrial gas to form a warmed natural gas stream;d) sending the warmed natural gas stream to a methanol production facility under conditions effective for producing a methanol stream, a purified hydrogen stream, and a purge gas rich in hydrogen;e) expanding the purge gas rich in hydrogen to form an expanded purge gas and warming the expanded purge gas in a second portion of the heat exchanger against the industrial gas to form a warmed purge gas stream;f) sending the warmed purge gas stream to the methanol production facility for use as ...

Подробнее
Номер записи: 46
08-02-2018 дата публикации

PROCESS INTEGRATION OF A GAS PROCESSING UNIT WITH LIQUEFACTION UNIT

Номер: US20180038642A1
Автор: Guillard Alain, Roesch Alexander, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

It is proposed to integrate a gas processing unit with a liquefaction unit. The industrial gas stream may be but is not limited to air gases of oxygen, nitrogen argon, hydrocarbon, LNG, syngas or its components, CO, or any other molecule or combination of molecules. It is proposed to integrate the underutilized process inefficiencies of a gas processing unit into the liquefaction unit to produce a liquid at a reduced operating cost. The gas processing unit may be any system or apparatus which alters the composition of a feed gas. Examples could be, but are not limited to, a methanol plant, steam methane reformer, cogeneration plant, and partial oxidation unit. 1. A process for the production of a liquid by integration of a gas processing unit and a liquefaction unit , the process comprising the steps of:a) providing a gas processing unit;b) providing a liquefaction unit, wherein the liquefaction unit is in fluid communication with the gas processing unit, such that the liquefaction unit and the gas processing unit are configured to send and receive fluids from each other;c) extracting a letdown energy from a high pressure gas to produce refrigeration to be used within the liquefaction unit, thereby producing a low pressure gas, wherein the low pressure gas is then used by the gas processing unit as a low pressure feedstream;d) liquefying an industrial gas within the liquefaction unit using refrigeration produced in step c).2. The process as claimed in claim 1 , wherein the gas processing unit is selected from the group consisting of a methanol plant claim 1 , a steam methane reformer claim 1 , a cogeneration plant claim 1 , a partial oxidation unit claim 1 , an autothermal reforming unit claim 1 , and combinations thereof.3. The process as claimed in claim 1 , wherein the industrial gas is selected from the group consisting of an air gas claim 1 , a hydrocarbon claim 1 , syngas claim 1 , carbon dioxide claim 1 , hydrogen claim 1 , carbon monoxide claim 1 , and ...

Подробнее
Номер записи: 47
08-02-2018 дата публикации

METHOD FOR THE INTEGRATION OF LIQUEFIED NATURAL GAS AND SYNGAS PRODUCTION

Номер: US20180038643A1
Автор: Guillard Alain, Roesch Alexander, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An integrated method for the production of liquefied natural gas (LNG) and syngas is provided. The method can include the steps of: utilizing letdown energy of a high pressure natural gas stream that is withdrawn from a natural gas pipeline to provide a warm temperature cooling; utilizing a refrigeration cycle to provide a cold temperature cooling, wherein the refrigeration cycle comprises a refrigerant recycle compressor that is powered utilizing a steam turbine; and cooling a second high pressure natural gas stream using the warm temperature cooling and the cold temperature cooling to produce an LNG product stream. The second high pressure natural gas stream is withdrawn from the natural gas pipeline, and the steam turbine is powered by high pressure steam that is produced from a syngas production facility. 1. A method for the production of liquefied natural gas (“LNG”) , the method comprising the steps of:a) operating a syngas production facility that is configured to convert a first natural gas stream into a syngas stream, wherein the syngas production facility is further configured to produce a pressurized steam, wherein the pressurized steam is fed to a steam turbine, wherein during said operating step, the syngas production facility uses a second natural gas stream at a lower pressure than the first natural gas stream;b) cooling and liquefying a third natural gas stream using refrigeration provided by at least two different sources to produce an LNG product stream;c) providing a first source for the refrigeration used in step b) by expanding the second natural gas stream in a natural gas expander and then warming the second natural gas stream, prior to being used in the syngas production facility in step a), against the third natural gas stream; andd) providing a second source for the refrigeration used in step b) using a nitrogen refrigeration cycle, wherein the nitrogen refrigeration cycle comprises a nitrogen recycle compressor and at least one turbine, ...

Подробнее
Номер записи: 48
08-02-2018 дата публикации

METHOD FOR LIQUEFACTION OF INDUSTRIAL GAS BY INTEGRATION OF METHANOL PLANT AND AIR SEPARATION UNIT

Номер: US20180038644A1
Автор: Guillard Alain, Roesch Alexander, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for the liquefaction of an industrial gas by integration of a methanol plant and an air separation unit (ASU) is provided. The method can include the steps of: (a) providing a pressurized natural gas stream, a pressurized purge gas stream composed predominately of hydrogen and originating from a methanol plant, and a pressurized air gas stream comprising an air gas from the ASU; (b) expanding three different pressurized gases to produce three cooled streams, wherein the three different pressurized gases consist of the pressurized natural gas stream, the pressurized purge gas stream, and the pressurized air gas stream; and (c) liquefying the industrial gas in a liquefaction unit against the three cooled streams to produce a liquefied industrial gas stream, wherein the industrial gas to be liquefied is selected from the group consisting of a first portion of the pressurized natural gas stream, a nitrogen gas stream, hydrogen and combinations thereof 1. A method for the liquefaction of an industrial gas selected from the group consisting of natural gas , nitrogen , hydrogen , and combinations thereof , the method comprising the steps of:a) withdrawing a pressurized natural gas stream from a natural gas pipeline;b) removing carbon dioxide and water from the pressurized natural gas stream;c) expanding the pressurized natural gas stream to form an expanded natural gas stream and warming the expanded natural gas stream in a first portion of a heat exchanger against the industrial gas to form a warmed natural gas stream;d) sending the warmed natural gas stream to a methanol production facility under conditions effective for producing a methanol stream, a purified hydrogen stream, and a purge gas rich in hydrogen;e) expanding the purge gas rich in hydrogen to form an expanded purge gas and warming the expanded purge gas in a second portion of the heat exchanger against the industrial gas to form a warmed purge gas stream;f) sending the warmed purge gas stream to the ...

Подробнее
Номер записи: 49
06-02-2020 дата публикации

DEVICE AND PROCESS FOR REFUELING CONTAINERS WITH PRESSURIZED GAS

Номер: US20200039811A1
Автор: BUCK Marcus, WERLEN Etienne
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A device for refuelling containers with pressurized gas, comprising a pressurized gas source, a transfer circuit intended to be removably connected to a container, the device comprising a refrigeration system for cooling the gas flowing from the gas source prior to its entering into the container, the refrigeration system comprising a refrigerant cooling loop circuit comprising, arranged in series, a compressor, a condenser section, an expansion valve and an evaporator section, the refrigeration system comprising a cold source in heat exchange with the condenser section and a heat exchanger located in the transfer circuit, the device comprising an electronic controller connected to the expansion valve and configured for controlling cooling power produced by the refrigeration system via the control of the opening of the expansion valve, the device comprising a differential temperature sensor system measuring the difference between the temperature of the refrigerant in the refrigerant cooling loop circuit at the outlet of the heat exchanger and the temperature of the refrigerant in the cooling loop circuit at the inlet of the heat exchanger, the electronic controller being configured for controlling the cooling power produced as a function of this temperature differential. 1. A device for refuelling containers with pressurized gas , comprising: a pressurized gas source; a refrigeration system adapted and configured for cooling gas flowing from the gas source prior to entering of said flowing gas into the container; an electronic controller; a differential temperature sensor system; and a transfer circuit that comprises one upstream end connected to the gas source and at least one downstream end intended to be removably connected to a container , wherein:the refrigeration system comprises a refrigerant cooling loop circuit comprising, arranged in series, a compressor, a condenser section, an expansion valve and an evaporator section;the refrigeration system further ...

Подробнее
Номер записи: 50
07-02-2019 дата публикации

DEVICE AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

Номер: US20190041129A1
Автор: CHAMONTIN Nicolas, Dos Santos Benedicte, Patrice Cavagne, RICHAUME Laurent
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Method for separating air by cryogenic distillation, wherein at least part of the air to be distilled is boosted in an air booster, compressed air is allowed to expand in at least one expansion turbine and, if the pressure drop between two points of the booster passes under a threshold and/or a flow of the booster passes under a minimum flow of the booster, part of the air boosted in the booster is allowed to expand without having been cooled between the booster and the expansion turbine and the boosted expanded air is sent upstream or downstream of the at least one turbine, without having been cooled in the heat exchanger, after having been boosted. 1. A device for separating air by cryogenic distillation comprising:an air compressor configured to compress all the air to be distilled;an air booster configured to boost at least part of the air to be distilled;an expansion turbine for receiving compressed air originating from the compressor and optionally from the air booster;a system of cryogenic distillation columns comprising at least one column;a heat exchanger;means for sending air from the compressor to the heat exchanger, which has two ends;means for bleeding cooled air at an intermediate point of the heat exchanger between the two ends and for sending cooled air to the booster;means for sending boosted air from the booster to the heat exchanger;means for sending air cooled in the heat exchanger to the turbine;means for sending air allowed to expand in the turbine to the system of columns;means for extracting an oxygen enriched flow and a nitrogen enriched flow from the system of columns, said means being connected to the heat exchanger;means for allowing the boosted air in the booster to expand;an absence of cooling means between the discharge of the booster and the means for allowing the boosted air to expandmeans for sending air, boosted in the booster and allowed to expand by the expansion means, upstream or downstream of the turbine, without having been ...

Подробнее
Номер записи: 51
06-02-2020 дата публикации

DEVICE AND PROCESS FOR REFUELING CONTAINERS WITH PRESSURIZED GAS

Номер: US20200041071A1
Автор: BUCK Marcus, WERLEN Etienne
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A device and process for refuelling containers with pressurized gas comprising a pressurized gas source, a transfer circuit comprising one upstream end, the device comprising a refrigeration system for cooling the gas flowing from the gas source prior to its entering into the container, the refrigeration system comprising a refrigerant cooling loop circuit comprising, arranged in series, a compressor, a condenser section, an expansion valve and an evaporator section, the refrigeration system comprising a cold source in heat exchange with the condenser section and a heat exchanger located in the transfer circuit and comprising a heat exchange section between the gas flowing in the transfer circuit and the evaporator section, the refrigerant cooling loop circuit comprising a bypass conduit comprising an upstream end connected to the outlet of the compressor and a downstream end connected to the refrigerant cooling loop circuit upstream the compressor inlet and bypassing the condenser section and expansion valve, the device comprising a bypass regulating valve for controlling the flow of refrigerant flowing into the by-pass conduit. 1. A device for refuelling containers with pressurized gas , comprising a pressurized gas source , a transfer circuit that comprises one upstream end connected to the pressurized gas source and at least one downstream end intended to be removably connected to a container , a refrigeration system for cooling gas flowing from the pressurized gas source prior to entry of the flowing gas into the container , and a bypass regulating valve , the refrigeration system comprising a refrigerant cooling loop circuit which comprises , arranged in series , a compressor , a condenser section , an expansion valve , and an evaporator section , wherein:the refrigeration system further comprises a cold source, which is in heat exchange with the condenser section, a heat exchanger that is located in the transfer circuit, and a bypass conduit;the heat ...

Подробнее
Номер записи: 52
06-02-2020 дата публикации

REFRIGERATION AND/OR LIQUEFACTION DEVICE, AND ASSOCIATED METHOD

Номер: US20200041201A1
Автор: BARJHOUX Pierre, Bernhardt Jean-Marc, Durand Fabien, FLAVIEN Gilles, HELOIN Vincent
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A device for refrigerating and/or liquefying a working gas comprising helium, the device comprising a looped working circuit for the working gas includes, in series, a compression station, a cold box, a heat exchange system exchanging heat between the cooled working gas and a user, the device further comprising an additional pre-cooling system comprising at least one tank of auxiliary cryogenic fluid, such as liquid nitrogen, the cold box comprising a first cooling stage of the working gas comprising a first exchanger disposed at the output of the compression station as well as a second heat exchanger and a third heat exchanger, the first heat exchanger being of the aluminum plate-fin type, the second heat exchanger being of the tube or welded plate type, characterized in that the second and third heat exchangers are connected both serially and in parallel on the working circuit downstream of the first heat exchanger. 2. The device of claim 1 , wherein the second heat exchanger is one of the following: stainless steel tubes claim 1 , aluminum tubes claim 1 , or a stainless steel welded plate exchanger claim 1 , wherein the stainless steel tubes or the aluminum tubes are optionally finned.3. The device of claim 1 , wherein the working circuit comprises a bypass leg selectively bypassing the third heat exchanger allowing the working gas from said upstream-most one of the plurality of first heat exchangers being arranged at the exit of the compression station and/or from the second heat exchanger to selectively avoid the third heat exchanger in the working circuit.4. The device of claim 1 , wherein the third exchanger is adapted and configured to effect selective exchange of heat between the working gas and the at least one volume of liquefied auxiliary gas claim 1 , the device comprising a selective feed pipe connecting the at least one volume of liquefied auxiliary gas to the third heat exchanger in order to transfer heat between the at least one volume of liquefied ...

Подробнее
Номер записи: 53
06-02-2020 дата публикации

PROCESS AND PLANT FOR THE PRODUCTION OF ARGON BY CRYOGENIC DISTILLATION OF AIR

Номер: US20200041204A1
Автор: BERTHAUME Ingrid, Briglia Alain, Dos Santos Benedicte, LEAUTE Mathieu, STAINE Frederic
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Plant for the production of argon by cryogenic distillation, comprising an argon separation column, means for sending a gas containing argon and oxygen to the argon separation column, means for extracting a fluid enriched in argon at the top of the argon separation column, means for extracting a liquid enriched in oxygen at the bottom of the argon separation column and at least two storage tanks, positioned one above the other, each storage tank being connected to two different intermediate levels of the argon separation column by two pipes, the two storage tanks being contiguous. 1. A process for the production of argon by cryogenic distillation in which a gas enriched in argon produced by air separation in a system of columns is sent to an argon separation column , a flow rich in argon is withdrawn at the top of the column and a liquid enriched in oxygen is withdrawn at the bottom of the column and returned to the system of columns , wherein the process further comprises a first operation and a second operation: withdrawing liquid from the argon separation column at a first intermediate level of the argon separation column and stored in a first storage tank;', 'an absence of sending liquid from the storage tank to the argon separation column;', 'withdrawing liquid from the argon separation column at a third intermediate level of the argon separation column and stored in a second storage tank;', 'an absence of sending liquid from the storage tank to the argon separation column,, 'i) wherein during the first operation, if the load of the argon separation column is below a first threshold, the process comprises the steps of an absence of sending liquid from the argon separation column to the first storage tank;', 'sending liquid from the first storage tank to the argon separation column at a second intermediate level of the argon separation column separated from the first intermediate level by at least one layer of elements making possible the exchange of mass and of ...

Подробнее
Номер записи: 54
06-02-2020 дата публикации

METHOD FOR MEASURING THE QUANTITY OF GAS INTRODUCED INTO A RESERVOIR AND CORRESPONDING FILLING STATION

Номер: US20200041323A1
Автор: FRANCOIS Thibaut
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A measured quantity of gas is introduced into a gas reservoir via a filling station including a flow meter. The quantity of gas transferred by the filling station to the reservoir is measured by the flow meter. The measured quantity of gas is reduced or increased by a predetermined corrective amount to yield a corrected gas quantity. 116-. (canceled)17. A method for measuring the quantity of gas introduced into a gas tank via a filling station equipped with a filling pipe that comprising an upstream end connected to at least one source of pressurized gas and a downstream end connected to a tank that is to be filled , the filling pipe comprising a flow meter and at least one downstream isolation valve positioned between the flow meter and the downstream end of the filling pipe , said method comprising the steps of transferring gas from the source to the tank during which step the downstream isolation valve is open;interrupting the transfer of gas with closure of the downstream valve;measuring, using the flow meter, a quantity of gas transferred during the transfer step; andgenerating a signal indicating a corrected quantity of gas transferred, the corrected quantity of gas transferred being obtained by reducing or by increasing, by a determined corrective quantity, the measured quantity of gas transferred during said step of transferring, the flow meter being adapted and configured to generate electric signals in the form of successive pulses each corresponding to an elementary measured quantity of gas, the generated signal being obtained by modifying at least one: a value of the elementary quantity of gas corresponding to a pulse generated by the flow meter, a number of pulses generated by the flow meter, a frequency with which the pulses generated by the flow meter are emitted, and a number of pulses counted from the pulses generated by the flow meter.18. The method of claim 17 , wherein the generated signal is obtained by subtracting claim 17 , or by adding claim ...

Подробнее
Номер записи: 55
19-02-2015 дата публикации

LASER NOZZLE COMPRISING AN ELEMENT MOVABLE IN A GAS LAYER

Номер: US20150048069A1
Автор: DEBECKER Isabelle, JOUANNEAU Thomas, LEFEBVRE Philippe
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Laser nozzle usable for laser cutting, especially with a fiber or disk laser, comprising: a nozzle body comprising an axial housing passing axially through the nozzle body and comprising a first output orifice located in the front side of the nozzle body; a movable element able to move in translation in the axial housing in the direction of the first output orifice under the effect of a gas pressure acting on the movable element; and an elastic element arranged in the axial housing, between the nozzle body and the movable element, the elastic element exercising an elastic return force on the movable element tending to oppose the translation movement in the axial housing in the direction of the first output orifice. 112. Laser nozzle ( , ) comprising:{'b': 1', '5', '1', '11', '1', '1, 'i': 'a', 'a nozzle body () comprising an axial housing () axially passing through said nozzle body () and comprising a first outlet orifice () situated at the front face () of the nozzle body (),'}{'b': 2', '5', '1', '2', '4', '12', '2', '2', '5', '11', '2, 'i': a', 'a, 'a movable element () arranged in the axial housing () of the nozzle body () comprising a front part () forming a skirt and an axial passage () with a second outlet orifice () emerging at the front part () forming a skirt, said movable element () being able to move in translation in the axial housing () in the direction of the first outlet orifice () under the effect of a gas pressure exerted on the movable element (), and'}{'b': 8', '5', '1', '2', '8', '2', '5', '11', '4', '2', '4', '4', '4', '4', '4, 'i': a', 'b', 'c', 'a', 'b, 'an elastic element () arranged in the axial housing (), between the nozzle body () and the movable element (), said elastic element () exerting an elastic return force on the movable element () tending to oppose the translation movement in the axial housing () in the direction of the first outlet orifice (), characterised in that the internal profile of said axial passage () of the movable ...

Подробнее
Номер записи: 56
25-02-2016 дата публикации

SUPPLY OF XENON OR ARGON GAS TO A DONOR PRIOR TO TAKING A SAMPLE OF BIOLOGICAL MATERIAL

Номер: US20160051580A1
Автор: KATZ Ira, Lemaire Marc, Pype Jan
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a gaseous composition containing an active gaseous compound selected from the group made up of Xe and Ar to be used for preventing or minimising an ischaemia-reperfusion lesion of a biological material in a donor patient, while and/or immediately after taking a sample of said biological material from said donor patient, said gaseous composition being administered to the donor patient prior to taking the sample of biological material from said donor patient. 115.-. (canceled)16. A method of preventing or minimizing an ischemia-reperfusion lesion of a biological material in a donor individual , the method comprising the step of administering to the donor individual , prior to the removal of the biological material from said donor individual , a gaseous composition containing an active gaseous compound chosen from the group made up of xenon (Xe) and argon (Ar) to thereby prevent or minimize ischemia-reperfusion lesion of the biological material during and/or subsequent to the removal of said biological material from said donor individual.17. The method of claim 16 , wherein the gaseous composition contains between 15% and 80% by volume of said active gaseous compound.18. The method of claim 16 , wherein the biological material is a tissue claim 16 , an organ or cells.19. The method of claim 16 , wherein the biological material is an organ.20. The method of claim 16 , wherein the biological material is an organ chosen from a liver claim 16 , a kidney claim 16 , a lung and a heart.21. The method of claim 16 , further comprising a step of mixing the active gaseous compound with an oxygen-containing gas claim 16 , prior to the step of administration to the donor individual.22. The method of claim 16 , wherein the donor individual is a human being.23. The method of claim 16 , wherein the gaseous composition is administered to a healthy donor individual.24. The method of claim 16 , wherein the gaseous composition is administered to a donor individual ...

Подробнее
Номер записи: 57
03-03-2022 дата публикации

PROCESS AND APPARATUS FOR SUPPLYING A BACKUP GAS UNDER PRESSURE

Номер: US20220065528A1
Автор: Briglia Alain
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The present invention relates to a process and a system for supplying a backup gas at a higher pressure from a source gas at a lower pressure. The backup gas at the lower pressure is at least partially condensed against a backup liquid at a higher pressure in a reprocessing heat exchanger and as a result, the backup liquid is at least partially vaporized. The backup liquid at the higher pressure is formed from boosting liquefied backup gas at the lower pressure. A backup vaporizer is disposed downstream of the reprocessing heat exchanger to completely vaporize the backup liquid at a higher pressure before it was delivered to the customer. The present invention eliminates the use of costly gas compressor and mitigates associated safety risks, in particular when the backup gas is oxygen. 114-. (canceled)15. A process for supplying a backup gas at an elevated pressure , comprising:a) providing a source of backup gas at a first pressure;b) providing at least a reprocessing heat exchanger, a backup vaporizer and a liquid pump;c) heat-exchange between the backup gas at the first pressure and a backup liquid at a second pressure in the reprocessing heat exchanger to produce the at least partially liquefied backup gas at the first pressure and the at least partially vaporized backup liquid at the second pressure;d) warming up the at least partially vaporized backup liquid at the second pressure in the backup vaporizer to produce the backup gas at an elevated pressure; and whereinthe second pressure is higher than the first pressure, and the backup liquid at the second pressure is obtained from elevating the pressure of the liquefied backup gas to the second pressure with the liquid pump.16. The process as claimed in claim 15 , further comprising an expansion valve and a liquid storage tank claim 15 , wherein the at least partially liquefied back-up gas at the first pressure is expanded through the expansion valve before entering the liquid storage tank.17. The process as ...

Подробнее
Номер записи: 58
03-03-2022 дата публикации

SYSTEM AND METHOD FOR SEPARATING AIR GASES AT LOW PRESSURE

Номер: US20220065530A1
Автор: Davidian Benoit
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An air gas separation plant comprising, in the direction of circulation of the air stream: a compression means that makes it possible to compress the air stream to a pressure P of between 1.15 bar abs and 2 bar abs, an adsorption unit of TSA type, and a cryogenic distillation unit, with the adsorption unit comprising at least two adsorbers A and B each having a parallelepipedal casing arranged horizontally and comprising: an air stream inlet and an air stream outlet, a fixed bed adsorbent mass, likewise of parallelepipedal shape, the faces of which are parallel to the faces of the casing; and a set of volumes allowing the air stream to pass through the adsorbent mass horizontally, over the entire cross-section and throughout the entire thickness thereof.

Подробнее
Номер записи: 59
14-02-2019 дата публикации

METHOD FOR DE-ICING A DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION AND DEVICE ADAPTED TO BE DE-ICED USING THIS METHOD

Номер: US20190049178A1
Автор: Dos Santos Benedicte, Lemaire Yann-Pierrick, Patrice Cavagne
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Method for separating air by cryogenic distillation in an air separation device comprising a system of columns, a first turbine and a second turbine, wherein, in de-icing operation, a common duct bringing air from the two turbines to a column is closed by means of an isolation valve, a purge gas is sent to the turbines at a temperature above 0° C. in order to de-ice them, but purge gas is not sent to the system of columns. 1. A device for separating air by cryogenic distillation , comprising a system of columns , a first turbine , a second turbine , a heat exchanger , means for sending at least one first fraction of air cooled in the heat exchanger at an intermediate temperature thereof to the first and the second turbines , a first expanded air duct connected to the backflow of the first turbine and to the system of columns , a second expanded air duct connected to the backflow of the second turbine , a common duct connected to the first and second ducts to bring the expanded air of the turbines to a column of the system of columns and an isolation valve , preferably a single isolation valve , allowing the common duct to be closed.2. The device according to claim 1 , further comprising a first compressor coupled to the first turbine; and a second compressor coupled to the second turbine3. The device according to claim 1 , further comprising a short-circuiting duct connecting the inlet of the first turbine to the outlet of the first turbine as well as to the common duct at a position upstream of the isolation valve claim 1 , allowing air to pass from the inlet of the first turbine to the common duct claim 1 , without passing through a turbine.4. The device according to claim 1 , further comprising at least one compressor driven by one of the first and second turbines.5. The device according to claim 4 , further comprising means for sending air from the compressor driven by one of the turbines to the turbines after cooling in the heat exchanger or to the heat ...

Подробнее
Номер записи: 60
25-02-2021 дата публикации

UTILIZATION OF NITROGEN-ENRICHED STREAMS PRODUCED IN AIR SEPARATION UNITS COMPRISING SPLIT-CORE MAIN HEAT EXCHANGERS

Номер: US20210055049A1
Автор: Briglia Alain, ZHAO Bowei
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

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. 127-. (canceled)28. A process of separating air comprising:a) passing a feed air stream sequentially through a main air compressor, an air pre-cooling unit and an air purification unit to produce a main feed air stream, further compressing part of the main feed air stream in a booster air compressor to form a boosted pressure air stream having a higher pressure and a higher temperature than the main feed air stream;b) cooling another part of the main feed air stream in a low-pressure heat exchanger through indirect heat exchange with a first nitrogen-enriched stream produced in an air rectification unit comprising a first column, a second column and a condenser evaporator disposed at the bottom of the second column, wherein the first column is operated at a higher pressure than the second column, thereby producing a first feed ...

Подробнее
Номер записи: 61
10-03-2022 дата публикации

ARRANGEMENT FOR REGULATION OF A PLANT FOR THE MEMBRANE PERMEATION TREATMENT OF BIOGAS

Номер: US20220073833A1
Автор: CERCEAU Arnaud
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Arrangement for regulation of a plant I for the membrane permeation treatment of a feed gas stream, comprising at least methane and carbon dioxide, that includes at least one means A for measurement of the gross calorific value (GCV) of the feed gas stream, at least one means B for comparison of the gross calorific value with a setpoint value E, at least one means C for production of a control signal as a function of the comparison of the gross calorific value with the setpoint value E, and at least one means D for transmission of this control signal to a means for regulation of said plant I. 1. An arrangement for regulation of a plant I for the membrane permeation treatment of a feed gas stream comprising at least methane and carbon dioxide , said arrangement comprising:at least one means A for measurement of the gross calorific value (GCV) of the feed gas stream;at least one means B for comparison of the gross calorific value with a setpoint value E;at least one means C for production of a control signal as a function of the comparison of the gross calorific value with the setpoint value E; andat least one means D for transmission of this control signal, wherein the means D is capable of transmitting the control signal to a means for regulation of said plant I or to a setpoint for concentration of methane or of carbon dioxide at the outlet of the plant in the form of a second setpoint value E′.2. The arrangement of claim 1 , wherein the means B and the means C are combined in a processor.3. The arrangement of claim 1 , wherein the means D for transmission of this control signal is capable of transmitting the control signal to a setpoint for concentration of methane or of carbon dioxide at the outlet of the plant in the form of a second setpoint value E′ and said arrangement comprises:at least one means A′ for measurement of the concentration of methane or of carbon dioxide at the outlet of the plant I,at least one means B′ for comparison of the concentration of ...

Подробнее
Номер записи: 62
10-03-2022 дата публикации

PUMPING DEVICE, PLANT AND METHOD FOR SUPPLYING LIQUID HYDROGEN

Номер: US20220074397A1
Автор: COLEIRO Gaetan, CRISPEL Simon, Durand Fabien, THIEU Anh Thao
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Device for pumping liquid hydrogen including, arranged in series between an inlet for fluid to be compressed and an outlet for compressed fluid, a first compression member with a piston forming a first compression stage and a second compression member with a piston forming a second compression stage. The first compression member compresses the liquid hydrogen to a supercritical state. The second compression member compresses the supercritical hydrogen from the first compression member to an increased pressure, in particular, between 200 and 1000 bar. 116-. (canceled)17. A device for pumping liquid hydrogen comprising and arranged in series:an inlet for fluid to be compressed;a first compression component, forming a first compression stage. comprising at least one assembly that comprises a piston that is translationally movable in a sleeve;a second compression component, forming a second compression stage. comprising at least one assembly that comprises a piston that is translationally movable in a sleeve; and{'claim-text': ['the first compression component is suitable for and configured for compressing the liquid hydrogen into a supercritical state,', 'the second compression component is suitable for and configured for compressing the supercritical hydrogen supplied by the first compression component at a pressure ranging between 200 and 1000 bar,', 'each piston of the at least one assembly of the first compression component is translationally movable in its respective sleeve at a determined movement speed,', 'each piston of the at least one assembly of the second compression component is translationally movable in its respective speed at a determined movement speed,', 'the translational movement of each piston of the at least one assembly of the first compression component alternates with the translational movement of each piston of the at least one assembly of the second compression component,', 'the determined movement speed of each piston of the at least one ...

Подробнее
Номер записи: 63
10-03-2022 дата публикации

STATION FOR FILLING GAS TANKS

Номер: US20220074551A1
Автор: VEMPAIRE David, WERLEN Etienne
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Station for filling gas tanks comprising a gas source, a circuit comprising an upstream end connected to the source and a downstream end comprising a hose portion, the end of which is intended to be connected to the tank(s) to be filled, the circuit comprising, between the source and the downstream end, an automatic shut-off breakaway coupling arranged along a working axis, said breakaway coupling ensuring an automatic shut-off of the circuit in case of a determined tensile force on said breakaway coupling along its working axis, the station comprising a dispenser housing, the breakaway coupling being arranged in the dispenser housing with a determined orientation of the working axis, at least one part of the hose portion of the downstream end of the circuit protruding from the dispenser housing, the dispenser housing comprising a guide member for guiding a zone of the hose portion, characterized in that the guide member comprises an assembly deflecting wall(s) converging toward a central passage zone ensuring the localized retention of the hose portion, the portion of circuit located between the breakaway coupling and the guide member being oriented at least substantially along the working axis of the breakaway coupling, the assembly of deflecting wall(s) of the guide member being further configured to transfer, along the working axis of the breakaway coupling, at least part of the tensile forces on the hose portion that are oriented transversely with respect to the working axis of the breakaway coupling. 1. A station for filling gas tanks comprising: a dispenser housing , a gas source and a circuit , the circuit comprising an upstream end connected to the source , a downstream end comprising a hose portion , and an automatic shut-off breakaway coupling disposed between the source and the downstream end and which is arranged along a working axis , wherein:a downstream end of the hose portion is intended to be connected to the tank(s) to be filled;said breakaway ...

Подробнее
Номер записи: 64
10-03-2022 дата публикации

APPARATUS AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

Номер: US20220074656A1
Автор: Davidian Benoit
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An apparatus for separating air, comprising a double column, means for sending air to the purification unit at a pressure that is no more than 1 bar higher than atmospheric pressure, a pipe for sending a first air flow, the first air flow having been purified in the purification unit, to the heat exchanger at a fourth pressure that is no more than 1 bar higher than the second pressure, a pipe for sending the first purified air flow, which has been cooled in the heat exchanger, to the second column for separation, and a booster compressor, the apparatus not comprising any means for depressurizing the first flow. 115-. (canceled)16. An air separation apparatus comprising:a double column with a first column operating at a first pressure and a second column operating at a second pressure, lower than the first pressure, the second column having a bottom reboiler;means for sending nitrogen-enriched gas from the top of the first column to the bottom reboiler and means for sending at least a part of the condensed nitrogen-enriched gas from the bottom reboiler to the top of the first column;a heat exchanger;a purification unit;means for sending air to the purification unit at a third pressure greater than atmospheric pressure by at most 1 bar;a pipe for sending a first flow of air purified in the purification unit to the heat exchanger at a fourth pressure greater than the second pressure by at most 1 bar;a pipe for introducing the first flow of purified air cooled in the heat exchanger into the second column in order to be separated therein, a booster;a pipe for sending a second flow of air purified in the purification unit to the booster;a pipe for sending at least a part of the second flow, compressed by the booster up to a fifth pressure between the first pressure and 1 bar above the first pressure, to the heat exchanger;means for producing refrigeration;a pipe for withdrawing at least one fluid enriched in oxygen or nitrogen from a column of the double column connected ...

Подробнее
Номер записи: 65
10-03-2022 дата публикации

METHOD FOR STARTING UP A CRYOGENIC AIR SEPARATION UNIT AND ASSOCIATED AIR SEPARATION UNIT

Номер: US20220074657A1
Автор: Day Eric, Gao Fei, XIE Huali
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

In a process for starting up an air separation unit, which is at a temperature of above 0° C., the air separation unit comprising a main air compressor for compressing the feed air, a booster driven by a turbine and a venting conduit connected downstream of the booster and upstream of the main heat exchanger wherein in order to start up the air separation unit, once the turbine is operating at said given speed, the venting conduit is opened to send at least part of the air compressed in the booster from the booster outlet to the atmosphere. 115-. (canceled)16. A process for starting up an air separation unit which is at a temperature of above 0° C. , the air separation unit comprising:a main air compressor for compressing the feed air,a main heat exchanger,a conduit for sending compressed air from the main air compressor to the main heat exchanger to be cooled,a booster,a conduit for sending at least part of the compressed air cooled in the main heat exchanger to the booster,means for sending air to the main heat exchanger from the booster, there being no means for cooling the air downstream of the booster and upstream of the main heat exchanger,a column system,at least one turbine connected to receive compressed air from the main air compressor and possibly from the booster, the at least one turbine being connected to the column system to provide air to be distilled in the column system,a conduit from removing an oxygen enriched product from the column system and sending the oxygen enriched product to be warmed in the main heat exchanger,a conduit from removing an nitrogen enriched product from the column system and sending the nitrogen enriched product to be warmed in the main heat exchanger;wherein, during normal operation, the air separation unit is configured such that air is sent from the main air compressor to the heat exchanger, cooled in the heat exchanger, compressed in the booster, cooled in the heat exchanger and separated in the column system, air is ...

Подробнее
Номер записи: 66
04-03-2021 дата публикации

GAS/LIQUID SEPARATION COLUMN CONTAINING A DISPENSING DEVICE

Номер: US20210060453A1
Автор: Davidian Benoit, WATTIAU Mikael
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Gas/liquid separation column, containing a device for dispensing a liquid, intended for a gas/liquid separation column, comprising: a plate, in which several orifices are arranged, through which the liquid is able to leave the dispensing device; a plurality of stacks extending from the plate, each stack being configured to be followed by the gas; a plurality of plugging means respectively arranged at one end of one of the stacks, each plugging means having a gutter shape allowing a first portion of the liquid to be collected; a plurality of troughs for directly collecting a second portion of the liquid, at least one part of the orifices being distributed in the base of said troughs, each plugging means comprising a first open longitudinal end and a second closed longitudinal end. 1. Gas/liquid separation column , comprising a liquid dispensing device and a gas/liquid contact component , adapted so that a fluid flows in a first liquid circulation direction through the device upstream of the gas/liquid contact component , the dispensing device comprising:a plurality of stacks extending from a lower plate along a vertical axis perpendicular to a first plane, each stack being configured to be followed by the gas in a second circulation direction opposite the first direction, the stacks being disposed above cutouts in the lower plate, at least one opening being laterally provided in a wall demarcating the stack in the vicinity of a vertical end of the stack and of the plugging means that plug this vertical end;a plurality of plugging means, respectively arranged at an upper vertical end of one of the stacks and over the entire longitudinal dimension of said stack, each plugging means having a gutter shape allowing direct collection of a first portion of the liquid that is conveyed through the dispensing device, the plugging means each having a first open longitudinal end and a second closed longitudinal end, so as to force liquid to exit the gutter via the first open ...

Подробнее
Номер записи: 67
22-05-2014 дата публикации

MICROWAVE PLASMA GENERATING DEVICES AND PLASMA TORCHES

Номер: US20140138361A1
Автор: GUERIN Daniel, Moisan Michel, ROSTAING Jean-Christophe, ZAKRZEWSKI Zenon
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a plasma generating device that comprises at least one very high frequency source (>100 MHz) connected via an impedance adaptation device to an elongated conductor attached on a dielectric substrate, at least one means for cooling said conductor, and at least one gas supply in the vicinity of the dielectric substrate on a side opposite to that bearing the conductor. The invention also relates to plasma torches using said device. 1. A plasma generator device which comprises at least one source of power with a frequency above 100 MHz , said source being connected via an impedance matching system to an elongate conductor fixed in intimate contact over its entire lower surface to a dielectric support , at least one means for cooling said conductor and at least one gas feed close to the dielectric support on the opposite side from the side supporting the conductor , wherein said device includes a partial electric ground plane that lies facing a face of the dielectric on the opposite side from the side supporting the conductor , the partial character of the ground plane being expressed by the fact that only a minor area of the conductor line is facing a ground plane.2. The device of claim 1 , wherein the conductor has a thickness of the order of one millimeter.3. The device of claim 1 , wherein the conductor is a microstrip.4. The device of claim 1 , wherein the conductor is a hollow elongate element claim 1 , especially of round claim 1 , rectangular or square cross section.5. The device of claim 1 , wherein the partial ground plane is located at the start of the conductor line claim 1 , the point where the microwaves enter the device.6. The device of claim 5 , wherein the wave launch zone claim 5 , at the input of the conductor line claim 5 , has a conventional structure in which the elongate conductor claim 5 , the dielectric and the partial ground plane are assembled claim 5 , the ground plane being interrupted at a short distance from the ...

Подробнее
Номер записи: 68
10-03-2016 дата публикации

METHOD FOR PRE-REFORMING HYDROCARBONS

Номер: US20160068391A1
Автор: Hackel Philipp Marius, HUBEL Mirko, WOLF Ulrich
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

There is proposed a method for pre-reforming a hydrocarbonaceous feed stream into a pre-reforming product containing carbon oxides, hydrogen and hydrocarbons, in which the adiabatically operated pre-reforming reactor comprises at least two reaction zones designed as fixed beds in a common reactor vessel, which are in fluid connection with each other and are filled with beds of granular, nickel-containing catalyst active for pre-reforming, wherein the first reaction zone in flow direction is filled with a catalyst active for high-temperature pre-reforming and the last reaction zone in flow direction is filled with a catalyst active for low-temperature pre-reforming. 111-. (canceled)12. A method for pre-reforming a hydrocarbonaceous feed stream into a pre-reforming product containing carbon oxides , hydrogen and hydrocarbons , the method comprising the step of introducing the hydrocarbonaceous feed stream into a multistage , adiabatically operated pre-reforming reactor under pre-reforming conditions to obtain a pre-reforming product , wherein the pre-reforming reactor is a shaft reactor , wherein the pre-reforming reactor comprises at least two reaction zones designed as fixed beds in a common reactor vessel , which are in fluid connection with each other and are filled with beds of granular , nickel-containing catalyst active for the pre-reforming , wherein the first reaction zone in flow direction is filled with a catalyst active for high-temperature pre-reforming and the last reaction zone in flow direction is filled with a catalyst active for low-temperature pre-reforming.13. The method according to claim 12 , wherein the hydrocarbonaceous feed stream comprises methane and C hydrocarbons claim 12 , wherein the pre-reforming product has a reduced amount of C hydrocarbons and an increased amount of methane as compared to the hydrocarbonaceous feed stream.14. The method according to claim 12 , wherein the hydrocarbonaceous feed stream comprises natural gas with a ...

Подробнее
Номер записи: 69
28-02-2019 дата публикации

CRYOGENIC REFRIGERATION DEVICE

Номер: US20190063791A1
Автор: Durand Fabien
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Cryogenic refrigeration device comprising a working circuit intended to cool a working fluid circulating in the said circuit, the working circuit comprising, arranged in series in a loop: a compression portion, a cooling portion, a portion with valve(s), an expansion portion and a reheating portion, in order to subject the working fluid to a recuperative working cycle comprising compression, then cooling, then expansion and then reheating to prepare for a new cycle, wherein the compression portion comprises at least one compressor having a linear piston driven by a linear motor, the expansion proportion comprises at least one expander with a linear piston, the portion with valve(s) comprises at least one regulating valve linearly actuated by a linear motor and controlled in order to supply or extract the working fluid from the at least one expansion piston. 115-. (canceled)16. A cryogenic refrigeration device comprising a working circuit intended to cool a working fluid circulating in said circuit , the working circuit comprising , arranged in series in a loop , a compression portion , a cooling portion , a portion with valve(s) , an expansion portion and a reheating portion , in order to subject the working fluid to a recuperative working cycle comprising compression , then cooling , then expansion and then reheating to prepare for a new cycle , in which the compression portion comprises at least one compressor with a linear piston driven by a linear motor , the expansion portion comprises at least one expander with a linear piston , the portion with valve(s) comprises at least one regulating valve of the linear type actuated by a linear motor and controlled in order to supply or extract the working fluid to or from the at least one piston expander.17. The refrigeration device of claim 16 , wherein at least one linear motor couples at least one of said at least one expander with a linear piston and at least one of said at least one compressor with a linear piston. ...

Подробнее
Номер записи: 70
11-03-2021 дата публикации

METHOD AND DEVICE FOR PRODUCING AIR PRODUCT BASED ON CRYOGENIC RECTIFICATION

Номер: US20210071948A1
Автор: Briglia Alain, XUE Fengjie, ZHAO Bowei
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

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. 117-. (canceled)18. A method for producing an air product on the basis of cryogenic rectification , the method comprising the steps of:a. providing a first tower and a second tower, the top of the first tower being in communication by heat exchange with the bottom of the second tower by means of a main condensing evaporator, and an operating pressure of the first tower being higher than an operating pressure of the second tower;b. providing at least one main air compressor, an air pre-cooling system, an air purification system, at least one main heat exchanger, at least one nitrogen gas compressor, a supercooler, and at least one nitrogen gas expander;c. subjecting an air feed gas, which has been pressurized ...

Подробнее
Номер записи: 71
05-03-2020 дата публикации

HYDROGEN REFUELING SYSTEM

Номер: US20200072417A1
Автор: OTT Thierry, WERLEN Etienne
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The present invention is to provide a hydrogen refueling system capable to cool down the H2 pre-cooling heat exchanger fast enough when a FCV enters the HRS, so that there is no or very minimal waiting time for the customer before starting refueling. A hydrogen refueling system including a cryogenic fluid tank that stores a cryogenic fluid, a dispenser that supplies H2 to a vehicle, including a heat exchanger that cools H2 with the cold and/or cryogenic fluid provided from the cryogenic fluid tank, an inlet line that sends the cold and/or cryogenic fluid to the heat exchanger from the cryogenic fluid tank, an outlet line that collects the cryogenic fluid fed from the heat exchanger, and an injection valve that is provided in the inlet line. 17-. (canceled)8. A hydrogen refueling system comprising:a cryogenic fluid tank that stores a cryogenic fluid;{'sub': 2', '2, 'a dispenser that supplies Hto a vehicle, including a heat exchanger that cools Hwith the cold and/or cryogenic fluid provided from the cryogenic fluid tank;'}an inlet line that sends the cold and/or cryogenic fluid to the heat exchanger from the cryogenic fluid tank;an outlet line that collects the cryogenic fluid fed from the heat exchanger; and{'sub': '2', 'an injection valve that is provided in the inlet line, wherein the hydrogen refueling system is operated in such a way that during part of the idle time of the system, the heat exchanger that cools Hwith the cold and/or cryogenic fluid provided from the cryogenic fluid tank heats up more than 7° C. above its nominal temperature during FCV refueling, and that it is cooled down upon arrival of a vehicle to be refilled.'}9. The hydrogen refueling system of claim 8 , the system further comprising:{'sub': '2', 'a vehicle detection system that detects that a vehicle to be refueled with His entering a hydrogen refueling station (HRS); and'}a controller that controls the opening of the injection valve on a basis of a detection result of the vehicle detection ...

Подробнее
Номер записи: 72
18-03-2021 дата публикации

HIGH-PURITY OXYGEN PRODUCTION SYSTEM

Номер: US20210080171A1
Автор: Hirose Kenji
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Certain embodiments of the present invention lies in providing a high-purity oxygen production system which is capable of supplying liquid nitrogen in order to supply the cold required by a high-purity oxygen production apparatus, without the use of a costly conventional liquefaction apparatus. 1. A high-purity oxygen production system comprising:an air separation apparatus including a main heat exchanger, a medium-pressure column and a low-pressure column; anda high-purity oxygen production apparatus including a nitrogen compressor, a nitrogen heat exchanger and at least one high-purity oxygen rectification column,wherein the low-pressure column is in fluid communication with the high-purity oxygen production apparatus such that the system is configured to supply an oxygen-containing stream serving as a starting material for high-purity oxygen from the low-pressure column to the high-purity oxygen production apparatus, andwherein the medium-pressure column is in fluid communication with the high-purity oxygen production apparatus such that the system is configured to supply liquid nitrogen obtained from the medium-pressure column to the high-purity oxygen production apparatus in order to replenish cold heat required for operation of the high-purity oxygen production apparatus.2. The high-purity oxygen production system according to claim 1 ,wherein the main heat exchanger is configured to subject a starting material air to heat exchange;wherein the medium-pressure column is in fluid communication with a cold end of the main heat exchanger and is configured to receive the starting material air from the main heat exchanger, the medium-pressure column having a medium-pressure column bottom in which a first rectification liquid is collected, a medium-pressure column rectification portion for rectifying the starting material air, and a medium-pressure column top arranged above the medium-pressure column rectification portion,wherein the low-pressure column is arranged ...

Подробнее
Номер записи: 73
12-03-2020 дата публикации

PROCESS FOR REMOVAL OF ACIDIC GAS CONSTITUENTS FROM SYNTHESIS GAS AND APPARATUS FOR PRODUCING RECYCLE GAS

Номер: US20200078723A1
Автор: Corbet Sharon, GUAN Micro, GUBRINSKI Alfred, RAPPOLD Dorit, SCHMIDT Sophia
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a process and a plant for removal of acidic gas constituents from synthesis gas by absorption in a physical scrubbing medium. A first scrubbing medium laden with at least carbon dioxide (CO) is supplied to a decompression vessel for depressurization from a first absorption apparatus via a first feed conduit. Furthermore, a second scrubbing medium laden with at least carbon dioxide (CO) is supplied to the decompression vessel for depressurization from a second absorption apparatus via a second feed conduit. The carbon dioxide concentration in the first laden scrubbing medium is higher than the carbon dioxide concentration in the second laden scrubbing medium. According to the invention it is provided that an at least partial commixing of the first and the second laden scrubbing medium is effected in the decompression vessel, wherein the commixing and depressurization affords a partially regenerated scrubbing medium and the first feed conduit and the second feed conduit are arranged such that carbon dioxide desorbed from the first laden scrubbing medium by the depressurization is at least partially absorbed by the second laden scrubbing medium. 1. A process for removal of acidic gas constituents from synthesis gas by absorption of the acidic gas constituents in a physical scrubbing medium , the process comprising the steps of:{'sub': '2', 'supplying a first scrubbing medium laden with at least carbon dioxide (CO) to a decompression vessel for depressurization from a first absorption apparatus via a first feed conduit;'}{'sub': '2', 'supplying a second scrubbing medium laden with at least carbon dioxide (CO) to the decompression vessel for depressurization from a second absorption apparatus via a second feed conduit, wherein the carbon dioxide concentration in the first laden scrubbing medium is higher than the carbon dioxide concentration in the second laden scrubbing medium,'}wherein:an at least partial commixing of the first and the second ...

Подробнее
Номер записи: 74
02-04-2015 дата публикации

CLOSED LOOP SUPERCRITICAL CARBON DIOXIDE POWER CYCLE

Номер: US20150089949A1
Автор: ENG Bruce
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

One embodiment of a closed loop supercritical carbon dioxide power generation process is provided. This process includes Indirectly exchanging heat between a hot gas stream and a warm supercritical carbon dioxide stream, expanding the heated supercritical carbon dioxide stream in a turbine, indirectly exchanging heat from the expanded supercritical carbon dioxide stream in a high temperature recuperator, thereby a cooled, expanded supercritical carbon dioxide steam, splitting the cooled, expanded supercritical carbon dioxide stream into a first stream and a second stream, compressing the first stream in a main compressor, and introducing the compressed first stream into the low temperature recuperator, and compressing the second stream in a recompressor, combining the compressed second stream with the heated first stream, and introducing the combined stream into the high temperature recuperator, wherein it indirectly exchanges heat with expanded supercritical carbon dioxide stream, thereby producing the warm supercritical carbon dioxide stream. 1. A closed loop supercritical carbon dioxide power generation process , comprising:{'b': 101', '104, 'indirectly exchanging heat between a hot gas stream () and a warm supercritical carbon dioxide stream (),'}{'b': 105', '106, 'expanding the heated supercritical carbon dioxide stream () in a turbine ()'}{'b': 108', '110', '107', '108', '110', '111, 'indirectly exchanging heat (, ) from the expanded supercritical carbon dioxide stream () in a high temperature recuperator () and the a temperature recuperator (), thereby producing a cooled, expanded supercritical carbon dioxide steam (),'}{'b': 111', '112', '113, 'splitting the cooled, expanded supercritical carbon dioxide stream () into a first stream () and a second stream (),'}{'b': 112', '116', '110, 'compressing the first stream () in a main compressor (), and introducing the compressed first stream into the low temperature recuperator (), and'}{'b': 113', '118', '108', ' ...

Подробнее
Номер записи: 75
25-03-2021 дата публикации

SPACER ELEMENT WITH SURFACE TEXTURING, AND ASSOCIATED HEAT EXCHANGER AND PRODUCTION METHOD

Номер: US20210088292A1
Автор: CRAYSSAC Frederic, Faure Raphael, Richet Nicolas, WAGNER Marc
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Certain embodiments of the invention relate to a spacer element for a heat exchanger of the brazed plate and fin type, intended to be fitted between a first plate and a second plate of the exchanger, said spacer element comprising at least a first assembly portion configured to be assembled with the first plate and comprising a first pair of opposite surfaces, one of the surfaces of the first pair being oriented toward the first plate and the other of the surfaces of the first pair being oriented toward the second plate when the spacer element is in the fitted state, several fins or corrugation legs extending from said first assembly portion so as to delimit, when the spacer element is in the fitted state, a plurality of channels for the flow of a first fluid, and at least one surface texturing in the form of a porous structure or of reliefs formed on the surface of the spacer element, at least one fin or corrugation leg exhibiting said surface texturing. According to the invention, the first assembly portion is free of surface texturing on the surface of the first pair which, in the fitted state, is oriented toward the first plate. 120-. (canceled)21. A spacer element for a heat exchanger of the brazed plate and fin type , intended to be fitted between a first plate and a second plate of the exchanger , said spacer element comprising:at least a first assembly portion configured to be assembled with the first plate and comprising a first pair of opposite surfaces, one of the surfaces of the first pair being oriented toward the first plate and the other of the surfaces of the first pair being oriented toward the second plate when the spacer element is in the fitted state,several fins or corrugation legs extending from said first assembly portion so as to delimit, when the spacer element is in the fitted state, a plurality of channels for the flow of a first fluid, andat least one surface texturing in the form of a porous structure or of reliefs formed on a surface of ...

Подробнее
Номер записи: 76
02-04-2015 дата публикации

INTEGRATION OF A CLOSED LOOP SUPERCRITICAL CARBON DIOXIDE POWER CYCLE IN A STEAM METHANE REFORMER

Номер: US20150093326A1
Автор: ENG Bruce, KHANDELWAL Rahul
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An integrated reforming and power generation process is provided. This process employs a steam methane reformer to provide a hot process gas stream and a flue gas stream, utilizes the hot process gas stream to provide heat to produce a total steam stream comprising a process steam stream and an excess steam stream, and utilizes the flue gas stream to provide heat to at least a pre-reformer mixture stream, a reformer feed stream, the process steam stream and a pre-reformer steam stream The flue gas stream also provides heat to an integrated power generation process, and the excess steam stream is less than 15% of the total steam stream. 2. The integrated reforming and power generation process of claim 1 , wherein the excess steam stream is 12% of the total steam stream.3. The integrated reforming and power generation process of claim 1 , wherein the integrated power generation process comprises a supercritical carbon dioxide cycle.4. The integrated reforming and power generation process of claim 3 , wherein the supercritical carbon dioxide cycle is a Brayton cycle.5. The integrated reforming and power generation process of claim 3 , further comprising a power cycle reheat module within the flue gas path.6. The integrated reforming and power generation process of claim 5 , wherein a flue gas stream entering the power cycle reheat module has a temperature of between 675 and 725 C.7. The integrated reforming and power generation process of claim 6 , wherein the flue gas stream entering the power cycle reheat module has a temperature of 700 C.8. The integrated reforming and power generation process of claim 5 , wherein a warm supercritical carbon dioxide stream enters and a heated supercritical carbon dioxide stream exits the power cycle reheat module.9. The integrated reforming and power generation process of claim 8 , wherein the warm supercritical carbon dioxide stream has a temperature of between 425 and 475 C.10. The integrated reforming and power generation process ...

Подробнее
Номер записи: 77
05-05-2022 дата публикации

DEVICE AND METHOD FOR FILLING TANKS

Номер: US20220136654A1
Автор: DEBESOMBES Louis, FAIRY Vincent, THIEU Anh Thao
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Device and method for filling pressurized-gas tanks, comprising a fluid transfer circuit provided with an upstream end intended to be connected to a source of gas and at least two parallel downstream ends intended to be connected to distinct tanks that are to be filled, the transfer circuit comprising a temperature regulating member for regulating the temperature of the gas transferred from the source towards the downstream ends, the gas temperature regulating member being positioned in the transfer circuit upstream of the at least two downstream ends, which means to say that the gas temperature regulating member is common to the at least two downstream ends, characterized in that the at least two downstream ends of the circuit each comprise a respective control member for controlling the flow rate and/or the pressure of the transferred gas and configured to control the flow rate and/or the pressure in each of the downstream ends independently.

Подробнее
Номер записи: 78
26-06-2014 дата публикации

DEVICE FOR TRACKED WHEEL WITH MAGNETIC BAND

Номер: US20140176269A1
Автор: Masia Perales Jorge
Принадлежит: ELIOT SYSTEMS, S.L.

Improved device () for a tracked wheel with magnetic band () that is characterized in that it comprises a cavity () accommodating a magnet (), this cavity () being sufficiently deep to completely accommodate the magnet () and an element () for attaching the actual device () to the magnetic band () on which it is placed and where lateral ridges () of the device () are provided with rounded edges (). 115232343151341346157. Improved device () for tracked wheel with magnetic band () that is characterized in that it comprises a cavity () accommodating a magnet () , this cavity () being sufficiently deep to completely accommodate the magnet () and a attaching element () of the magnet () to the actual device () and the magnetic band () on which it is placed the device () leaving a gap between the upper surfaces of the magnet () and attaching element () and the upper surface of the device () avoiding that the magnet () and attaching element () come into contact with a metal surface on which the device moves , and at least the edges () of the device () that are perpendicular to the direction of movement of the magnetic band () are provided with rounded edges ().2. Device according to that is made of a plastic material. This invention relates to a device for attaching magnets in tracked wheels of robots with magnetic band that is specially designed for application in robots that work with metal surfaces.Currently the magnetic band of the tracked wheels consists of the placing of magnets directly onto the same using screws or similar attaching elements.The problem showing these magnetic bands is that when coming into contact with the metal surfaces produce scratches and damage the paint of the same.The device of the present invention solves the problem set out above allowing the magnetic band of a robot to come into contact with a metal surface without damaging or scratching the paint of the surface.The device of the invention has a cavity accommodating a magnet of the ...

Подробнее
Номер записи: 79
12-05-2022 дата публикации

DEVICE AND METHOD FOR STORING AND SUPPLYING FLUID FUEL

Номер: US20220146047A1
Автор: BENSADOUN Emmanuel, BRAVAIS Patrick, SANGLAN Patrick
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Device for storing and supplying fluid fuel, comprising a tank for liquefied fuel gas balanced with a gaseous phase, in particular a hydrogen gaseous phase, a circuit for filling the tank, at least one circuit for extracting fluid from the tank, at least one circuit for controlling the pressure in the tank, the circuits for filling, extracting and controlling the pressure comprising a valve assembly arranged in a housing which is separate from the tank, the housing being detachably connected to the tank via a removable mechanical coupling system, the extraction circuit, the pressure control circuit and the filling circuit comprising an assembly of removable fluid connections which are located at the junction between the tank and the housing and configured to enable separation between the portions of circuits located in the tank and in the housing when removing the housing from the tank. 117-. (canceled)18. A device for storing and for supplying fluid fuel , comprising:a reservoir of liquefied hydrogen in equilibrium with gaseous phase of hydrogen;a circuit for filling the reservoir;at least one circuit for tapping fluid from the reservoir;at least one circuit for regulating the pressure in the reservoir; anda housing, wherein:the filling, tapping and pressure regulating circuits comprise a set of valves arranged in the housing separate from the reservoir;the housing is removably connected to the reservoir via a demountable mechanical coupling system;the tapping, pressure regulating, and filling circuits comprise a set of demountable fluidic connectors located at a junction between the reservoir and the housing and which are configured to allow separation, during demounting of the housing with respect to the reservoir, between portions of said circuits located in the reservoir and portions of said circuits located in the housing; andwhen the housing is connected to the reservoir, the housing defines a closed volume filled with an atmosphere predominantly comprising ...

Подробнее
Номер записи: 80
12-05-2022 дата публикации

LIQUEFIED GAS STORAGE TANK

Номер: US20220146050A1
Автор: FAYER Thomas, Jannin Nicolas, LOSCO Jerome
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Tank for storing liquefied gas comprising a sealed housing defining a storage space for the liquefied gas, the housing comprising a lower end and an upper end, the tank comprising a device for measuring the level of liquid in the housing, the device for measuring the level of liquid comprising, arranged in the housing, a float and a guide for moving the float, characterized in that the guide comprises an end connected to an upper portion of the housing and a lower end connected to a lower portion of the housing, the float being mounted moveably in translation on the guide such that the float is free to slide along the guide, the device for measuring the level of liquid further comprising at least one float position sensor. 16-. (canceled)7. A liquefied gas storage tank comprising an sealed housing , a device for measuring a level of liquid in the housing , and an outer wall disposed around the housing , wherein:the housing delimits a storage volume for the liquefied gas and has a lower end and an upper end;the device for measuring the level of liquid is disposed in the housing and comprises a float, a guide for the displacement of the float, and at least one sensor sensing the position of the float;the guide comprises an end which is connected to an upper part of the housing and a lower end which is connected to a lower part of the housing;the float is fitted such as to be translationally movable on the guide such that the float is free to slide along the guide;the outer wall has an intermediate space containing thermal insulation;the at least one position sensor is secured on an exterior of a volume delimited by the outer wall and the housing,and in that the at least one position sensor is an optical or laser detection sensor which is configured to detect the position or the distance of the float relative to a reference point, and in that the housing comprises at least one window which is situated between the sensor and the float, the window being configured to ...

Подробнее
Номер записи: 81
26-03-2020 дата публикации

DEVICE AND METHOD FOR FILLING PRESSURIZED GAS TANKS

Номер: US20200095113A1
Автор: BUCK Marcus, CRISPEL Simon, FAIRY Vincent, THIEU Anh Thao
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Device and method for filling pressurized gas tanks, particularly vehicle pressurized hydrogen tanks, the device comprising a liquefied gas source, a transfer circuit comprising two parallel transfer lines each having an upstream end linked to the liquefied gas source, at least two separate downstream ends intended to be each removably connected to a tank to be filled, each of the two transfer lines comprising: a pump, a vaporizer for evaporating the pumped fluid, a branch for bypassing the vaporizer and a distribution valve(s) set configured to control the flow of fluid pumped and distributed between the vaporizer and the branch line, the device further comprising a storage buffer(s), which storage buffer(s) is(are) connected in parallel to each of the two transfer lines via a set of valves. 1. A device for filling pressurized gas tanks , comprising:a liquefied gas source;a storage buffer(s); anda transfer circuit, the transfer circuit comprising two parallel transfer lines each having an upstream end linked to the liquefied gas source, each transfer line comprising a downstream end intended to be removably connected to a tank to be filled, each of the two transfer lines comprising: a pump for pumping the liquefied gas, a vaporizer line receiving the pumped liquefied gas from the pump, a vaporizer disposed in the vaporizer line for evaporating a portion of the pumped liquefied gas, a branch line receiving another portion of the pumped liquefied gas and allowing the other portion of liquefied gas to bypass the vaporizer, and at least one distribution valve, the at least one distribution valve being configured to control a flow of liquefied gas pumped and distributed between the vaporizer and the branch line, the storage buffer(s) being connected in parallel to each of the two transfer lines via a set of valves, wherein the vaporizer line and branch line of the first transfer line split off from one another downstream of the pump of the first transfer line and ...

Подробнее
Номер записи: 82
08-04-2021 дата публикации

PROCESS AND PLANT FOR THE PRODUCTION OF SYNTHESIS GAS BY MEANS OF CATALYTIC STEAM REFORMATION OF A HYDROCARBONACEOUS FEED GAS

Номер: US20210101797A1
Автор: Chen Yue, Kang Taekyu, TADIELLO Jean-Philippe, Wenz Thomas
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A plant for producing a synthesis gas chiefly consisting of hydrogen and carbon monoxide by catalytic steam reformation of a hydrocarbonaceous feed gas, wherein the heat of burners required for the chemical reforming reactions to take place is generated by producing a flue gas and wherein, by utilizing the heat contained in the synthesis gas and in the flue gas, a pure steam is generated from boiler feed water and a process steam is generated from process condensate, wherein for the generation of the pure steam synthesis gas and flue gas are used and for the generation of the process steam a part of the pure steam is used as heat-transfer medium and the remaining part of the pure steam is discharged from the process as export steam. 1. A plant for producing a synthesis gas consisting essentially of hydrogen and carbon monoxide by catalytic steam reformation of a hydrocarbonaceous feed gas , the plant comprising:at least one tubular furnace configured to carry out the catalytic steam reformation, wherein the at least one tubular furnace comprises burners that are configured to provide heat for the catalytic steam reformation;a degassing boiler configured for the thermal degasification of boiler feed water;a steam boiler configured to generate pure steam from boiler feed water, wherein the steam boiler comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger is configured to heat and evaporate the boiler feed water using heat from the syntheses gas, wherein the second heat exchanger is configured to heat and evaporate the boiler feed water using heat from the flue gas;a splitter in fluid communication with the steam boiler and configured to receive the pure steam from the steam boiler;a first steam line in fluid communication with the splitter configured to receive a first pure steam;an export steam line in fluid communication with the splitter that is configured to receive a second pure steam;a condensate separator configured for ...

Подробнее
Номер записи: 83
26-03-2020 дата публикации

PROCESS FOR PRODUCING BIOMETHANE FROM A BIOGAS STREAM, COMPRISING SOLIDIFICATION OF THE IMPURITIES

Номер: US20200096254A1
Автор: CARDON Guillaume, TRUEBA Antonio, Valentin Solène
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Process for producing biomethane from a biogas stream including methane, carbon dioxide and at least one impurity chosen from ammonia, volatile organic compounds, water, sulfur-based impurities (HS) and siloxanes. A biogas stream is dried, the at least one impurity is at least partially removed by solidification and removal of the impurity. The methane and the carbon dioxide contained in the biogas obtained from the second step are separated so as to produce a biomethane stream and a COstream. 1. A process for producing biomethane from a biogas stream comprising methane , carbon dioxide and at least one impurity chosen from ammonia , volatile organic compounds , water , sulfur-based impurities (HS) and siloxanes , said process comprising the steps of:drying the biogas stream;at least partially removing said at least one impurity contained in the dried biogas stream by solidification and removal of the solidified at least one impurity to yield at least partially purified biogas; and{'sub': '2', 'separating the methane and the carbon dioxide contained in the at least partially purified biogas so as to produce a biomethane stream and a COstream.'}2. The process of claim 1 , wherein the second step of at least partially removing said at least one of the at least one impurity comprises:compressing the dried biogas stream to a pressure of greater than 5 bar, preferably 10 bar;cooling the compressed biogas stream to a temperature below −70° C., thereby solidifying said at least one impurity resulting in deposition of the solidified at least one impurity; andremoval of said solidified at least one impurity from the cooled compressed biogas stream.3. The process of claim 2 , wherein the compressed biogas stream is cooled with a cooling stream of COproduced during said step of separating.4. The process of claim 2 , wherein in said step of cooling claim 2 , said at least one impurity is removed by sublimation of said at least one impurity and by flushing with a gaseous ...

Подробнее
Номер записи: 84
08-04-2021 дата публикации

OPTICAL REFRIGERATOR AND SENSOR INCLUDING SUCH A REFRIGERATOR

Номер: US20210102735A1
Автор: GARDELEIN Arnaud, NIOT Jean-Michel
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

An optical refrigerator for cooling an infrared detector or sensor, that includes a laser radiation source, a cooling crystal for receiving laser radiation from the source and to be cooled, an element to be cooled, and a thermal link in heat exchange between the crystal and the element to be cooled, in order to transfer frigories from the crystal to the element to be cooled. The thermal link comprises two plates having respective first ends in heat exchange with two distinct surfaces of the crystal, respectively, the two plates having second ends in heat exchange with the element to be cooled. 111-. (canceled)12. An optical refrigerator for cooling an infrared detector or sensor , the refrigerator comprising a source of laser radiation , a cooling crystal configured to receive the laser radiation from the source and to be cooled , an element to be cooled and a thermal link in heat exchange between the crystal and the element to be cooled in order to transfer frigories from the crystal to the element to be cooled , wherein the thermal link comprises two plates having respective first ends in heat exchange with two distinct surfaces of the crystal , respectively , and respective second ends in heat exchange with the element to be cooled.13. The refrigerator of claim 12 , wherein one of the second ends is in heat exchange with one surface of the element to be cooled that is distinct from another surface of the element to be cooled that is in heat exchange with the other of the second ends.14. The refrigerator of claim 13 , wherein the second ends of the two plates sandwich the element to be cooled.15. The refrigerator of claim 12 , wherein the first ends of the two plates sandwich the crystal.16. The refrigerator of claim 12 , wherein:the plates each have a “J” or doglegged shape that extends in a plane non-rectilinearly; andthe ends of the plate in heat exchange with the crystal and the element to be cooled, respectively, are located at two ends located on either side ...

Подробнее
Номер записи: 85
20-04-2017 дата публикации

ZIRCONIUM, HAFNIUM, TITANIUM PRECURSORS AND DEPOSITION OF GROUP 4 CONTAINING FILMS USING THE SAME

Номер: US20170107612A1
Автор: Gatineau Satoko, Girard Jean-Marc, KIM Daehyeon, NOH Wontae
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Group 4 transition metal-containing film forming compositions are disclosed. The Group 4 transition metal-containing film forming compositions comprise Group 4 transition metal precursors having the formula L—M-CR-[(CER)-(CER)—O]-, wherein M is Ti, Zr, or Hf bonded in an ηbonding mode to the cyclopentadienyl group; each E is independently C, Si, B or P; m and n is independently 0, 1 or 2; m+n>1; each R is independently a hydrogen or a C—Chydrocarbon group; each L is independently a -1 anionic ligand selected from the group consisting of NR′, OR′, Cp, amidinate, β-diketonate or keto-iminate, wherein R′ is H or a C—Chydrocarbon group; and adjacent R′s may be joined to form a hydrocarbyl ring. Also disclosed are methods of synthesizing and using the disclosed precursors to deposit Group 4 transition metal-containing films on the substrates via vapor deposition processes. 21. The Group 4 transition metal-containing film forming composition of claim 1 , wherein the - anionic ligand is selected from the group consisting of NR′ claim 1 , OR′ claim 1 , Cp claim 1 , amidinate claim 1 , β-diketonate claim 1 , and keto-iminate claim 1 , wgerein R′ is H or a C-Chydrocarbon group.3. The Group 4 transition metal-containing film forming composition of claim 2 , wherein E is C.4. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Ti.501. The Group 4 transition metal-containing film forming composition of claim 4 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NH)-Ti—CH-[(CH)—O]— claim 4 , (NMe)-Ti—CH-[(CH)—O]— claim 4 , (NEt)-Ti-CH-[(CH)—O]— claim 4 , (NPr)-Ti—CH-[(CH)—O]— claim 4 , (NPr)-Ti—CH-[(CH)—O]— claim 4 , (NBu)-Ti—CH-[(CH)—O]— claim 4 , (NBu)-Ti—CH-[(CH)—O]— claim 4 , (NBu)-Ti—CH-[(CH)—O]— claim 4 , (NBu)-Ti—CH-[(CH)—O]— claim 4 , (NHMe)-Ti—CH-[(CH)—O]— claim 4 , (NHEt)-Ti—CH-[(CH)—O]— claim 4 , (NHPr)-Ti—CH-[(CH)—O]— claim 4 , (NHPr)-Ti—CH-[(CH)—O]— claim 4 , (NHBu)-Ti—CH-[(CH)—O]— claim ...

Подробнее
Номер записи: 86
20-04-2017 дата публикации

ZIRCONIUM, HAFNIUM, TITANIUM PRECURSORS AND DEPOSITION OF GROUP 4 CONTAINING FILMS USING THE SAME

Номер: US20170107617A1
Автор: Gatineau Julien, Gatineau Satoko, Girard Jean-Marc, KIM Daehyeon, NOH Wontae
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Group 4 transition metal-containing film forming compositions comprising Group 4 transition metal precursors having the formula: 2. The Group 4 transition metal-containing film forming composition of claim 1 , wherein the −1 anionic ligand is selected from the group consisting of NR′ claim 1 , OR′ claim 1 , Cp claim 1 , Amidinate claim 1 , β-diketonate claim 1 , and keto-iminate claim 1 , wherein R′ is a H or a C-Chydrocarbon group.3. The Group 4 transition metal-containing film forming composition of claim 2 , wherein the Group 4 transitional metal-containing precursor is selected from E is C.4. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Zr.5. The Group 4 transition metal-containing film forming composition of claim 4 , wherein the Group 4 transitional metal precursor is selected from the group consistin of (MeN)—Zr—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)- claim 4 , (Cp)—Zr—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- claim 4 , and (Cp)—Zr—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)-.6. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Hf.7. The Group 4 transition metal-containing film forming composition of claim 6 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (MeN)-Hf—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- claim 6 , (MeN)—Hf—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)- claim 6 , (Cp)—Hf—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- and(Cp)—Hf—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)-.8. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Ti.9. A method of depositing of a Group 4 transition metal-containing film on a substrate claim 3 , comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'introducing a vapor of the Group 4 transition metal-containing film forming composition of into a reactor having a substrate disposed therein and depositing at least part of the Group 4 ...

Подробнее
Номер записи: 87
20-04-2017 дата публикации

ZIRCONIUM, HAFNIUM, TITANIUM PRECURSORS AND DEPOSITION OF GROUP 4 CONTAINING FILMS USING THE SAME

Номер: US20170107618A1
Автор: Gatineau Julien, Gatineau Satoko, Girard Jean-Marc, KIM Daehyeon, NOH Wontae
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Group 4 transition metal-containing film forming compositions are disclosed comprising Group 4 transition metal precursors having the formula: 2. The Group 4 transition metal-containing film forming composition of claim 1 , wherein the −1 anionic ligand is selected from the group consisting of NR′ claim 1 , OR′ claim 1 , Cp claim 1 , Amidinate claim 1 , β-diketonate claim 1 , and keto-iminate claim 1 , wherein R′ is H or a C-Chydrocarbon group.3. The Group 4 transition metal-containing film forming composition of claim 2 , wherein A is N and E is C.4. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Ti.5. The Group 4 transition metal-containing film forming composition of claim 4 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NMe)-Ti-Pyrrole-(CH—CH—NMe)- claim 4 , (NMe)-Ti-Pyrazole-(CH—CH—NMe)- claim 4 , (NMe)-Ti-Imidazole-(CH—CH—NMe)- claim 4 , (NMe)(Cp)-Ti-Pyrrole-(CH—CH—NMe)- claim 4 , (NMe)(Cp)-Ti-Pyrazole-(CH—CH—NMe)- claim 4 , and (NMe)(Cp)-Ti-Imidazole-(CH—CH—NMe)-.6. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Zr.7. The Group 4 transition metal-containing film forming composition of claim 6 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NMe)-Zr-Pyrrole-(CH—CH—NMe)- claim 6 , (NMe)-Zr-Pyrazole-(CH—CH—NMe)- claim 6 , (NMe)-Zr-Imidazole-(CH—CH—NMe)- claim 6 , (NMe)(Cp)-Zr-Pyrrole-(CH—CH—NMe)- claim 6 , (NMe)(Cp)-Zr-Pyrazole-(CH—CH—NMe)- claim 6 , and (NMe)(Cp)-Zr-Imidazole-(CH—CH—NMe)-.8. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Hf.9. The Group 4 transition metal-containing film forming composition of claim 8 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NMe)-Hf-Pyrrole-(CH—CH—NMe)- claim 8 , (NMe)-Hf-Pyrazole-(CH—CH—NMe)- claim 8 , (NMe)-Hf-Imidazole-(CH—CH—NMe)- claim 8 , (NMe)(Cp)-Hf- ...

Подробнее
Номер записи: 88
20-04-2017 дата публикации

ZIRCONIUM, HAFNIUM, TITANIUM PRECURSORS AND DEPOSITION OF GROUP 4 CONTAINING FILMS USING THE SAME

Номер: US20170107623A1
Автор: Gatineau Julien, Gatineau Satoko, Girard Jean-Marc, KIM Daehyeon, NOH Wontae
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Group 4 transition metal-containing film forming compositions are disclosed. The Group 4 transition metal-containing film forming compositions comprise Group 4 transition metal precursors having the formula L-M-CR-[(ER)—NR]—, wherein M is Ti, Zr, or Hf bonded in an ηbonding mode to the Cp group; each E is independently C, Si, B or P; each R is independently a hydrogen or a C-Chydrocarbon group; and each L is independently a −1 anionic ligand selected from the group consisting of NR′, OR′, Cp, amidinate, β-diketonate, or keto-iminate, wherein R′ is a H or a C-Chydrocarbon group and adjacent R's may be joined to form a hydrocarbyl ring; provided that at least one R on the Cp is Cto C. Also disclosed are methods of synthesizing and using the disclosed precursors to deposit Group 4 transition metal-containing films on one or more substrates via vapor deposition processes. 2. The Group 4 transition metal-containing film forming composition of claim 1 , wherein the −1 anionic ligand is selected from the group consisting of NR′ claim 1 , OR′ claim 1 , Cp claim 1 , Amidinate claim 1 , β-diketonate claim 1 , and keto-iminate claim 1 , wherein R′ is a H or a C-Chydrocarbon group.3. The Group 4 transition metal-containing film forming composition of claim 2 , wherein E is C.4. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Zr.5. The Group 4 transition metal-containing film forming composition of claim 4 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (MeN)—Zr—CH-1-Me-3-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CH-1-Et-3-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CH-1-Pr-3-(CH—CH—NMe)- claim 4 , (MeN)(Cp)-Zr—CH-1-Me-3-(CH—CH—NMe)- claim 4 , (MeN)(Cp)-Zr—CH-1-Et-3-(CH—CH—NMe)- claim 4 , (MeN)(Cp)-Zr—CH-1-Pr-3-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CMe-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CMe-1-Et-3-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CMe-1-Pr-3-(CH—CH—NMe)- claim 4 , (MeN)(Cp)-Zr—CMe-(CH—CH—NMe)- claim 4 , (MeN)(Cp)-Zr—CMe-1-Et- ...

Подробнее
Номер записи: 89
29-04-2021 дата публикации

METHOD AND APPARATUS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

Номер: US20210123671A1
Автор: Demolliens Bertrand, Le Bot Patrick
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

In a method for separating air by cryogenic distillation, cooled air purified to remove water is sent to a first column operating at a first pressure, where it is separated into a nitrogen-enriched gas as an oxygen-enriched liquid; a gas enriched in argon relative to the air is withdrawn from the second column; at least a portion of the oxygen-enriched liquid is vaporized by heat exchange with the argon-enriched gas; and the vaporized, oxygen-enriched liquid is sent to an intermediate level of the second column. 1. A method for separating air by cryogenic distillation , the method comprising the steps of:(a) sending a cooled air that has previous been purified to remove water to a first column operating at a first pressure, where the cooled air is separated into a nitrogen-enriched gas and an oxygen-enriched liquid;(b) withdrawing a liquid enriched in nitrogen relative to the air from the first column and sending said liquid enriched in nitrogen to the top of a second column that is connected thermally to the first column and operates at a second pressure, wherein the second pressure is lower than the first pressure;(c) withdrawing a liquid enriched in oxygen relative to the air from the first column;(d) withdrawing a gas enriched in argon relative to the air from the second column;(e) at least partially vaporizing at least a portion of the oxygen-enriched liquid by heat exchange with the argon-enriched gas to form a vaporized oxygen-enriched fluid, and then sending the vaporized oxygen-enriched fluid to an intermediate level of the second column;(f) returning at least one condensed portion of the argon-enriched gas to a third column, wherein the third column is also fed with an argon-enriched gas flow originating from the second column, wherein an argon-enriched top gas is withdrawn at a top portion of the third column, and an argon-depleted liquid is returned from the third column to the second column;(g) sending a portion of the oxygen-enriched liquid to an ...

Подробнее
Номер записи: 90
02-04-2020 дата публикации

DISTILLATION COLUMN CHAMBER

Номер: US20200103164A1
Автор: LEMAIRE Franck
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A chamber for a distillation column that is to operate at a temperature below 0° C., comprises at least four walls, which in use are vertical, and a roof, the chamber being designed to contain at least one distillation column, at least one other element that is to operate at a cryogenic temperature, and insulation, at least one wall being convex. 1. A chamber for a distillation column that is to operate at a temperature below 0° C. , the chamber comprising:an inner volume having disposed therein at least one element that is to operate at a temperature below 0° C. and insulation;at least four vertical walls, all having the same height in the vertical direction; anda roof,wherein the at least four walls comprise at least two rectangular planar walls and at least one convex wall,wherein the at least one element that is closest to the convex wall is cylindrical.2. The chamber as claimed in claim 1 , wherein the at least four walls is comprised of two convex walls and two rectangular planar walls claim 1 , wherein the at least four walls are configured to define a first space in the shape of a cuboid claim 1 , wherein a second space is disposed on each side of the first space claim 1 , wherein the second space is in the shape of a truncated cylinder.3. The chamber as claimed in claim 2 , in which the at least one convex wall has one edge is an arc of a right circular or oval cylinder and the second space is potentially a half-cylinder.4. The chamber as claimed in claim 2 , in which at least one third of the volume of the cylindrical element is disposed in the second space.5. The chamber as claimed in claim 4 , in which just part of the volume of the cylindrical element is disposed in the first space.6. The chamber as claimed in claim 2 , further comprising a framework disposed within the inner volume of the chamber claim 2 , wherein the framework is in the form of a cuboid containing pipes and acts as a support for the at least one element claim 2 , the framework being ...

Подробнее
Номер записи: 91
11-04-2019 дата публикации

CRYOGENIC DISTILLATION COMPRISING VACUUM INSULATION PANEL

Номер: US20190107325A1
Автор: CLODIC Denis, Delcorso Fabrice, Tranier Jean-Pierre, Zick Golo
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A cryogenic installation unit comprises at least one item of equipment to be thermally insulated, a structure for containing the at least one item of equipment, a main insulation contained in the structure and, associated with this main insulation, a secondary insulation of lower thermal conductivity than the main insulation, said secondary insulation consisting of a vacuum insulation panel. 1. A cryogenic distillation apparatus comprising:a structure comprising a ceiling, a floor and a plurality of side walls, wherein the structure is a cold box having a parallelepipedal shape or a circular cross section;at least one item of equipment disposed within the structure, the at least one item of equipment selected from the group consisting of a phase separator, a column, a heat exchanger, a pump, a turbine, and combinations thereof, wherein each item of equipment has a side periphery, and the side periphery is made up of a first portion and a second portion, the first portion being the portion of the side periphery that is located at a distance from an outer surface of the closest side wall below a given threshold, the second portion being the remaining portion of the side periphery;a main insulation contained in the space between the equipment and the structure, wherein said main insulation comprises a perlite insulation; anda secondary insulation having a lower thermal conductivity than the main insulation, wherein said secondary insulation comprises at least one vacuum insulation panel, wherein the secondary insulation is installed such that the secondary insulation is configured to reduce the thermal flux experienced by the first portion of the side periphery of the at least one item of equipment attributable to the outside atmosphere,wherein the secondary insulation is selectively installed such that there is an absence of the secondary insulation between the second portion of the side periphery of the at least one piece of equipment a point on the outer surface of ...

Подробнее
Номер записи: 92
26-04-2018 дата публикации

METHOD OF TRANSPORTING AN ASSEMBLY FORMED OF AN ENCLOSURE WITH AT LEAST ONE PANEL AND ENCLOSURE TO BE TRANSPORTED USING THIS METHOD

Номер: US20180112914A1
Автор: CAVAGNE Patrice, LEMAIRE Franck, Peyron Jean-Marc
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method of transporting at least one panel intended to form part of a distillation apparatus in which a first, possibly partial, enclosure is built to contain an element of a distillation apparatus that is to operate at a temperature other than ambient temperature, at least one panel is attached to the first enclosure, the first enclosure attached to the at least one panel is transported to an erection site, the at least one panel is detached from the first enclosure and used to finish building the first or to build the second enclosure or to build a completely different element of the plant. 1. A method for transporting and erecting a cold box assembly at a second location distal from a first location , the method comprising the steps of:providing the cold box assembly at the first location, wherein the cold box assembly comprises a first enclosure defined by a set of walls, wherein the cold box assembly further includes a set of panels removably attached to an outer periphery of the set of walls and a distillation element disposed within the first enclosure;transporting the cold box assembly in a horizontal position;erecting the cold box assembly from the horizontal position to a vertical position at the second location and then removing the set of panels from the outer periphery of the set of walls while in the vertical position;forming a second enclosure using the set of panels;installing a second distillation element within the second enclosure while at the second location; andinstalling insulation within the volume of the first enclosure and the second enclosure2. The method according to claim 1 , wherein the first location is a fabrication shop and the second location is an installation site.3. The method according to claim 1 , wherein the set of panels are made of a different material than the set of walls claim 1 , wherein the total mass of the set of panels is less than the total mass of the set of the walls.4. The method according to claim 1 , wherein ...

Подробнее
Номер записи: 93
18-04-2019 дата публикации

METHODS FOR ANIMAL ANESTHESIA EMPLOYING RECYCLING OF THE GASES

Номер: US20190110486A1
Автор: CHARVE Etienne, Cousin Franck, Taylor Bob
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The invention relates to a method for anaesthetizing animals before slaughter, by the anaesthetic action of gases or gas mixtures, 1. A method for anaesthetizing animals before slaughter , by the anaesthetic action of gases or gas mixtures , said method operating in “batch” mode in which the live animals , put together in one or more cages , are placed in a lock chamber for treatment where the animals are brought into contact with the anaesthetic gas or gas mixture , following a cycle comprising several steps , characterized by different contents of anaesthetic gas , characterized in that at least one of the steps is carried out using gas recovered from the lock chamber and stored in at least one variable volume temporary storage compartment.2. The method of claim 1 , wherein:the compartment intended to receive the recovered gas is provided with a bellows system; andrecovery of gas contained in the lock chamber is carried out by the bellows system by injecting anaesthetic gas into a bulb associated with the compartment in question, causing the bellows to rise, thus generating a negative pressure that will allow aspiration of the gas present in the lock chamber, the gas used for actuating the bulb being released subsequently in the lock chamber in order to be reused.3. The method of claim 1 , wherein there are several compartments for temporary storage having a variable volume claim 1 , thereby allowing separate storage of different contents of anaesthetic gas in a carrier gas.4. An installation for anaesthetizing animals before slaughter claim 1 , by the anaesthetic action of gases or gas mixtures claim 1 , operating in “batch” mode claim 1 , comprising a lock chamber for treatment where the animals are brought into contact with the anaesthetic gas or gas mixture claim 1 , characterized in that it comprises at least one variable volume temporary storage compartment claim 1 , said at least one variable volume temporary storate compartment being able to recover gas in ...

Подробнее
Номер записи: 94
28-04-2016 дата публикации

SILICON/CARBON COMPOSITE, SILICON ALLOY/CARBON COMPOSITE, AND METHODS FOR PRODUCING THE SAME

Номер: US20160118154A1
Автор: DUMONT Aurelie, GINET Patrick, Okubo Shingo
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A silicon/carbon composite or a silicon alloy/carbon composite is formed with a homogeneous silicon-containing thin film or silicon-containing alloy thin film on the surface of a conductive carbon material, where the composite may be used for a large-capacity electrical storage device when used as a negative electrode material for forming an electrical storage device negative electrode, and exhibits excellent charge-discharge cycle characteristics. A carbon-containing thin film is formed on a surface of a conductive carbon material by chemical vapor deposition (CVD) that utilizes a carbon-containing gas and a silicon-containing thin film or a silicon-containing alloy thin film is formed on the conductive carbon material by chemical vapor deposition (CVD) that utilizes a silicon-containing gas alone, or utilizes a silicon-containing gas and a carbon-containing gas. 1. A method for producing a silicon/carbon composite comprising:forming a carbon-containing thin film on a surface of a conductive carbon material by chemical vapor deposition (CVD) that utilizes a carbon-containing gas; andforming a silicon-containing thin film on the conductive carbon material by chemical vapor deposition (CVD) that utilizes a silicon-containing gas.2. The method for producing a silicon/carbon composite of claim 1 , wherein the conductive carbon material is carbon nanofibers or a graphite powder.3. The method for producing a silicon/carbon composite of claim 1 , wherein the carbon-containing gas is at least one gas selected from the group consisting of a saturated hydrocarbon having 1 to 10 carbon atoms that is unsubstituted or substituted with a substituent claim 1 , an unsaturated hydrocarbon having 2 to 10 carbon atoms that is unsubstituted or substituted with a substituent claim 1 , an alicyclic hydrocarbon having 3 to 10 carbon atoms that is unsubstituted or substituted with a substituent claim 1 , and an aromatic hydrocarbon having 6 to 30 carbon atoms that is unsubstituted or ...

Подробнее
Номер записи: 95
13-05-2021 дата публикации

PRESSURE EQUALIZING SYSTEM FOR AIR SEPARATION PURIFICATION AND CONTROL METHOD

Номер: US20210138387A1
Автор: Day Eric
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Disclosed in the present invention are a pressure equalizing system for air separation purification, and a control method. The system comprises: a first air main pipe; a pressurizing gas pipeline, which is connected to the first air main pipe and used for receiving a pressurizing gas and delivering same to the first air main pipe; and a control valve, located on the pressurizing gas pipeline, and having a degree of opening regulated by the flow regulator, thereby regulating an air intake amount of the pressurizing gas pipeline. The present invention solves the problem of an air separation rectification process being affected when dry nitrogen is used for pressure equalization of an adsorber; in the switching process of entering an adsorption stage from a regeneration stage, pressurizing dry nitrogen used in a pressure equalizing step previously mixes with damp air from a main air compressor before entering the adsorber, such that the gas components flowing towards an air separation cold box remain substantially unchanged, in order to reduce disturbance in conditions of gas entering a rectification column to take part in rectification due to a gas component gradually changing from dry nitrogen to dry air in the prior art, thus stabilizing the process conditions of the air separation cold box. 1. A pressure equalizing system for air separation purification , the system comprising:a first adsorber and a second adsorber arranged in parallel;a first air main pipe, located upstream of air intake ends of the adsorbers, the first air main pipe being configured to receive damp air from a main air compressor;a first air intake branch pipe configured to connect the first air main pipe to the air intake end of the first adsorber;a second air intake branch pipe configured to connect the first air main pipe to the air intake end of the second adsorber;a second air main pipe, located downstream of air output ends of the adsorbers, the second air main pipe being configured to ...

Подробнее
Номер записи: 96
07-05-2015 дата публикации

Method of producing graphene from liquid metal

Номер: US20150122659A1
Автор: Antoni Rzepkowski, Konrad DYBOWSKI, Piotr Kula, Radomir ATRASZKIEWICZ, Robert PIETRASIK, Wojciech MODRZYK
Принадлежит: Advanced Graphene Products SA, POLITECHNIKA LÓDZKA

A multilayered plate containing, as the graphene forming matrix, an external layer composed of a metal or a metal alloy and, as a support substrate, the transition metals and/or their alloys and/or metalloids and/or their solutions and compounds is subjected to heat treatment in the following stages: plate heating until the plate reaches a temperature that is between 0.5° C. and 50° C., annealing, at a constant or variable temperature from the temperature range, for a period between 60 and 600 seconds and cooling, with the cooling rate maintained between 0.1 and 2° C./min in the temperature range of 1,200° C.-1,050° C.

Подробнее
Номер записи: 97
13-05-2021 дата публикации

CRYOGENIC RECTIFICATION PROCESS-BASED METHOD FOR PRODUCING AIR PRODUCT, AND AIR SEPARATION SYSTEM

Номер: US20210140708A1
Автор: Briglia Alain, XUE Fengjie, ZHAO Bowei
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

The present invention discloses a cryogenic rectification process-based method for producing an air product, and an air separation system. By adding an air product outlet line and a liquid air booster pump to an existing cryogenic rectification process apparatus, the existing rectification apparatus is used to prepare oxygen-enriched liquid air by pressurizing, cooling and liquefying feed air; and moreover, a high-pressure or ultra-high-pressure air product can be prepared according to customer requirements by adjusting the ratio of the feed air to the oxygen-enriched liquid air, and pressurizing the mixture to a target pressure by the liquid air booster pump before being vaporized via heat exchange with a gas or liquid product produced by rectification through a heat exchange apparatus. According to the present invention, when gas or liquid products of oxygen and nitrogen are produced by means of rectification, a high-pressure or ultra-high-pressure air product can be provided according to customer requirements, and there is no need to provide an additional air compressor or passively increase the discharge pressure of the air booster, so that the production costs are greatly reduced and the energy efficiency level is improved. The method of the present invention can also improve the stability of devices, especially when a small amount of high-pressure/ultra-high-pressure air product needs to be produced. 126-. (canceled)27. A cryogenic rectification process-based method for producing an air product , comprising:a. providing an air separation system for preparing a nitrogen product and/or an oxygen product, which comprises: a rectification column, at least one air boost system, at least one air pre-cooling apparatus, at least one air purification apparatus and at least one heat exchange apparatus, wherein the rectification column comprises a first column with a first pressure, a second column with a second pressure and a main condensation and evaporation apparatus ...

Подробнее
Номер записи: 98
27-05-2021 дата публикации

CRYOGENIC LIQUEFIER BY INTEGRATION WITH POWER PLANT

Номер: US20210156303A1
Автор: TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for producing liquid nitrogen using a residual gas stream derived from a flue gas of a power plant is provided. The residual gas stream is purified in a front-end purification unit to remove freezable components and then the purified stream is compressed. Following compression, the stream can be divided into a first portion and a second portion, wherein the first portion is cooled and sent to a distillation column, wherein oxygen and argon are separated, thereby leaving an essentially pure gaseous nitrogen stream. The gaseous nitrogen stream can then be liquefied using refrigeration provided by expanding the second portion of the purified stream. In a preferred embodiment, the second portion is expanded in two turbines, and the gaseous nitrogen is compressed in a cold nitrogen booster, which is powered by one of the two turbines. In an additional embodiment, after warming, the expanded second portion of the purified stream can be used to regenerate the front-end purification unit. 1. A method for producing liquid nitrogen , the method comprising the steps of:providing a residual gas stream, wherein the residual gas stream is sourced from a retentate stream of a cold membrane, wherein the residual gas stream comprises nitrogen, argon, oxygen, and carbon dioxide;purifying the residual gas stream in a front-end purification unit to remove carbon dioxide, thereby forming a purified residual gas stream;compressing the purified residual gas stream in a first compressor to form a pressurized residual gas stream;introducing the pressurized residual gas stream to a cold box, wherein a first portion of the pressurized residual gas stream is cooled in a main heat exchanger, expanded within the cold box, and then fed to a distillation column system for separation therein, thereby forming a nitrogen stream and a waste stream;withdrawing the waste stream from the distillation column system and warming said waste stream; andwithdrawing the nitrogen enriched stream from ...

Подробнее
Номер записи: 99
27-05-2021 дата публикации

ARGON AND POWER PRODUCTION BY INTEGRATION WITH POWER PLANT

Номер: US20210156612A1
Автор: BONIFACIO Abigail, Guillard Alain, TURNEY Michael A.
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method for producing power and argon is provided by providing a residual gas stream, purifying the residual gas stream in a front-end purification unit to remove carbon dioxide, thereby forming a purified residual gas stream, and introducing the purified residual gas stream to a cold box, wherein the purified residual gas stream is cooled and expanded within the cold box to produce power and then fed to a distillation column system for separation therein, thereby forming an argon-enriched stream and optionally a nitrogen-enriched stream and/or an oxygen-enriched stream, wherein the residual gas stream is sourced from a retentate stream of a cold membrane having oxygen, nitrogen, carbon dioxide, and argon. 1. A method for producing power and argon , the method comprising the steps of:providing a residual gas stream, wherein the residual gas stream is sourced from a retentate stream of a cold membrane, wherein the residual gas stream comprises nitrogen, argon, oxygen, and carbon dioxide;purifying the residual gas stream in a front-end purification unit to remove carbon dioxide, thereby forming a purified residual gas stream; andintroducing the purified residual gas stream to a cold box, wherein the purified residual gas stream is cooled and expanded within the cold box and then fed to a distillation column system for separation therein, thereby forming an argon-enriched stream, wherein the purified residual gas stream is expanded in at least one turbine that is configured to produce power.2. The method of claim 1 , wherein the residual gas stream is derived from a flue gas stream from a power plant.3. The method of claim 1 , wherein the at least one turbine comprises a warm turbine claim 1 , wherein the step of introducing the purified residual gas stream to a cold box further comprises expanding the purified residual gas stream in the warm turbine prior to cooling in a heat exchanger.4. The method of claim 3 , wherein the step of introducing the purified residual ...

Подробнее
Номер записи: 100
01-09-2022 дата публикации

Method for preventing the fluidization of a catalytic fixed bed in a tubular upward-flow reactor of a steam methane reformer

Номер: US20220274080A1
Автор: Daniel Gary, Dieter Ulber, Laurent Prost, Marie BASIN
Принадлежит: L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude

The present invention relates to a method to prevent the fluidization of a catalytic fixed bed present in a tubular reactor operated in upward-flow configuration by estimating a pressure drop margin remaining before fluidization of the catalytic bed and adjusting the reactant gas flow in response. It relates also to a method to operate safely a furnace suitable for performing endothermic reactions containing a plurality of catalytic fixed bed reactors operated in upward-flow configuration, and to a method to debottleneck safely a catalytic fixed bed reactor involving a gas flowing in up flow direction.

Подробнее
Номер записи: 101
01-09-2022 дата публикации

REFRIGERATION AND/OR LIQUEFACTION METHOD, DEVICE AND SYSTEM

Номер: US20220275999A1
Автор: Bernhardt Jean-Marc, Durand Fabien, GONDRAND Cecile, GUILLET Damien, NICOLAS Remi
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Disclosed is a refrigeration and/or liquefaction method using a system that includes a low-temperature refrigeration device comprising a working circuit which forms a loop and contains a working fluid, the working circuit forming a cycle comprising, connected in series: a compression mechanism, a cooling mechanism, an expansion mechanism and a heating mechanism the refrigeration device further comprising a cooling exchanger for extracting heat from the useful fluid stream by exchanging heat with the working fluid flowing in the working circuit, the system comprising a pipe through which the useful fluid stream flows in the cooling exchanger, the method comprising a cooling step in which the refrigeration device is in a first operating mode for cooling the cooling exchanger while a useful fluid stream flows in the cooling exchanger, the method comprising, after said cooling step, a step of cleaning impurities that have solidified in the cooling exchanger, characterized in that during the cleaning step, the refrigeration device is in a second operating mode in which the working gas flows in the working circuit but in which the cooling exchanger cools less intensely than in the first operating mode. 115-. (canceled)16. A method for refrigeration and/or liquefaction of a flow of user fluid , said method comprising the steps of:providing a cooling and/or liquefaction system that comprises a low-temperature refrigeration at a temperature of between minus 100 degrees centigrade and minus 273 degrees centigrade, the refrigeration device comprising a working circuit forming a loop and containing a working fluid, the working circuit forming a cycle that comprises, in series: a mechanism for compressing the working fluid, a mechanism for cooling the working fluid, a mechanism for expanding the working fluid, and a mechanism for heating the working fluid, the refrigeration device comprising a cooling exchanger intended to extract heat from the flow of user fluid by heat ...

Подробнее
Номер записи: 102
02-05-2019 дата публикации

PROCESS AND PLANT FOR THE COMBINATION PRODUCTION OF A MIXTURE OF HYDROGEN AND NITROGEN AND ALSO OF CARBON MONOXIDE BY CRYOGENIC DISTILLATION AND CRYOGENIC SCRUBBING

Номер: US20190128601A1
Автор: Demolliens Bertrand
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Process for the combined production of a mixture of hydrogen and nitrogen, and of carbon monoxide by cryogenic distillation and cryogenic scrubbing, wherein a methane-rich liquid is introduced at a first intermediate level of a scrubbing column as first scrubbing liquid and at least one nitrogen-rich liquid is introduced at a level higher than the first level of the scrubbing column as second scrubbing liquid and a mixture of hydrogen and nitrogen is drawn off as overhead gas from the scrubbing column. 110-. (canceled)11. A process for the combined production of a mixture of hydrogen and nitrogen , of carbon monoxide by cryogenic distillation and cryogenic scrubbing , wherein the process comprises the steps of:i) cooling, in a heat exchanger, a gas mixture containing at least hydrogen, carbon monoxide and methane;ii) sending the cooled mixture to a scrubbing column;iii) introducing a methane-rich liquid at a first intermediate level of the scrubbing column as a first scrubbing liquid;iv) introducing at least one nitrogen-rich liquid at a level higher than the first level of the scrubbing column as a second scrubbing liquid;v) withdrawing a mixture of hydrogen and nitrogen as an overhead gas from the scrubbing column;vi) withdrawing a first bottoms liquid from the scrubbing column and then sending said first bottoms liquid to a stripping column;vii) withdrawing a liquid that is level with an intermediate section of the scrubbing column and sending said liquid either to the heat exchanger, or to a stripping column overhead gas line, or to a second stripping column;viii) withdrawing a second bottoms liquid from the stripping column and then sending to a column configured to separate carbon monoxide and methane; andix) withdrawing a fluid rich in carbon monoxide from the separating column;x) withdrawing a third bottoms liquid from the separating column, wherein at least one portion of the third bottoms liquid from the separating column constitutes the methane-rich ...

Подробнее
Номер записи: 103
23-04-2020 дата публикации

STATION AND METHOD FOR FILLING PRESSURIZED GAS TANKS

Номер: US20200124233A1
Автор: CHOLLAT Jean-Jacques, FRANCOIS Thibaut, Jannin Nicolas, OTT Thierry
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A station for filling pressurized gas tanks comprising a filling circuit having an upstream end connected to at least one source of gas and a downstream end, the filling circuit comprising a unit for compressing gas coming from the source, the filling station comprising a device for cooling the compressed gas comprising a heat exchanger situated in the filling circuit configured to provide heat exchange between the pressurized gas and a cooling fluid, the cooling device comprising a reserve of cryogenic liquid constituting the cooling fluid and a cooling circuit connecting the reserve of cryogenic liquid to the heat exchanger in order to transfer heat from the pressurized gas to the cryogenic liquid, the cooling circuit further comprising a gas sampling line connecting a volume containing the vaporized gas from the reserve to the heat exchanger. 112-. (canceled)13. A station for filling a tank with pressurized gas , comprising a filling circuit and a device for cooling compressed gas , wherein:the filling circuit has an upstream end connected to at least one gas source, a downstream end intended to be connected to at least one tank to be filled, and a unit for compressing gas from the at least one gas source to provide the pressurized gas for filling the tank;the device for cooling the compressed gas comprising a heat exchanger located in the filling circuit that is configured to exchange heat between the pressurized gas and a cooling fluid, a store of cryogenic liquid constituting the cooling fluid, and a cooling circuit connecting the store of cryogenic liquid to the heat exchanger, via a line for withdrawing liquid from the store which transfers liquid from the store to the heat exchanger, such that frigories are transferred from the cryogenic liquid to the pressurized gas, wherein the cooling circuit also comprises a gas withdrawal line connecting a volume containing the vaporized gas of the store to the heat exchanger, such that frigories are transferred from ...

Подробнее
Номер записи: 104