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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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1964. Отображено 100.
14-06-2012 дата публикации

Electrochemical phase transfer devices and methods

Номер: US20120145557A1
Автор: Christian Rensch, Christoph Boeld, Marko Baller, Victor Samper
Принадлежит: General Electric Co

Devices and methods for electrochemical phase transfer utilize at least one electrode formed from either glassy carbon or a carbon and polymer composite. The device includes a device housing defining an inlet port ( 42 ), an outlet port ( 44 ) and an elongate fluid passageway ( 36 ) extending therebetween. A capture electrode ( 12 ) and a counter electrode are positioned within said housing such that the fluid passageway extends between the capture and counter electrodes.

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Номер записи: 1
02-05-2013 дата публикации

HELIUM-RECOVERY PLANT

Номер: US20130104597A1
Автор: Rillo Millán Conrado, Tocado Martínez Leticia
Принадлежит:

A helium recovery plant adapted to filter, compress, and purify helium gas collected from one or more helium-using instruments, as well as to liquefy and redistribute the purified gas within a closed system. The recovery plant is adapted to match the purification and liquefaction rate of the system with the consumption rate of the coupled instruments. Additionally, the recovery plant is adapted to match the liquefaction rate of a liquefaction module with a boil-off rate of liquid helium within a Dewar thereof. The recovery plant is further adapted to recycle helium therein in an effort to achieve zero loss. 1. A helium recovery plant for recovering helium from helium-using equipment , the recovery plant comprising:a recovery module coupled to the helium gas using equipment, said recovery module being adapted to recover gas-phase helium from the helium-using equipment;a pressurized storage module coupled to said recovery module, said storage module being adapted to filter, compress, and store the recovered gas-phase helium of said recovery module;a purification module coupled to said storage module, said purification module comprising one or more refrigerators adapted to remove impurities from the recovered gas-phase helium to form an amount of purified gas-phase helium;a first distribution management module comprising a first distribution means, said first distribution management module being disposed between said storage module and said purification module and adapted to regulate a flow of the gas-phase helium therebetween;a liquefaction module comprising one or more liquefiers, said liquefaction module being adapted to liquefy the purified gas-phase helium into liquid-phase helium using said one or more liquefiers;a second distribution management module comprising a second distribution means, said second distribution management module being disposed between said purification module and said liquefaction module and adapted to regulate a flow of gas therebetween; ...

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Номер записи: 2
16-05-2013 дата публикации

SEPARATION OF A GAS MIXTURE

Номер: US20130118205A1
Автор: Forsyth Jonathan Alec, Mori Yasushi, NAGAO Hideki
Принадлежит: BP Alternative Energy International Limited

A method is described for use in the separation of carbon dioxide from a gas mixture comprising carbon dioxide. The method includes the steps of: (i) compressing and cooling the gas mixture using a compressor to form a two-phase mixture including liquid carbon dioxide (ii) separating a liquid carbon dioxide stream from the two-phase mixture; and (iii) recirculating at least a part of the liquid carbon dioxide stream and introducing the recirculated liquid stream into a process stream by recirculating separated liquid COinto an upstream process stream, cooling of the process stream can be obtained. By using the liquid stream, additional cooling is possible as cooling is affected by the evaporation of the liquid CO. Thus the recirculated liquid can be used to reduce the temperature of the process stream. 1. A method for use in the separation of carbon dioxide from a gas mixture comprising carbon dioxide , the method comprising the steps of:(i) compressing and cooling the gas mixture using a compressor to form a two-phase mixture including liquid carbon dioxide(ii) separating a liquid carbon dioxide stream from the two-phase mixture; and(iii) recirculating at least a part of the liquid carbon dioxide stream and introducing the recirculated liquid stream into a process stream.2. A method according to claim 1 , wherein the recirculated COliquid stream is introduced upstream of the compressor.3. A method according to claim 1 , wherein a gaseous stream is fed to the compressor and at least a part of the recirculated liquid carbon dioxide stream is introduced into the gaseous stream claim 1 , such that the liquid carbon dioxide evaporates before entering the compressor.4. A method according to wherein the gas mixture further includes hydrogen claim 1 , the two phase mixture comprising liquid carbon dioxide and a hydrogen rich gas claim 1 , wherein the hydrogen rich gas is separated from the two-phase mixture and at least a part of the separated hydrogen rich gas stream is ...

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Номер записи: 3
23-05-2013 дата публикации

Ethylene Expansion for Low Temperature Refrigeration in Polyethylene Vent Recovery

Номер: US20130125581A1
Автор: Fischer Donald A., Force Randall L.
Принадлежит: UNIVATION TECHNOLOGIES, LLC

Provided are processes and systems for recovering hydrocarbons in a vent stream from a polymerization process. The methods and systems may include the recovery of an olefin monomer from a polymerization vent gas using ethylene refrigeration to condense and recover the olefin monomers from the vent gas. In some embodiments, the methods and systems may also include compression and condensation of polymerization vent gas, recompression of ethylene refrigerant, and use of an expander compressor turbine device for ethylene refrigeration. 1. A process for recovery of hydrocarbons from a polymerization vent gas , the process comprising:(a) reducing a pressure of an ethylene stream from a pressure of greater than or equal to 3.4 MPa to a pressure of less than or equal to about 1.4 MPa to form a reduced pressure ethylene stream;(b) cooling a vent gas comprising a monomer via heat exchange with the reduced pressure ethylene stream to form a first condensate comprising at least a portion of the monomer entrained in a first light gas;(c) recovering the first condensate and the first light gas;(d) separating the first condensate from the first light gas;(e) compressing the reduced pressure ethylene stream to a pressure of greater than or equal to 2.4 MPa;(f) passing the compressed ethylene stream to a polymerization reactor.2. The process according to claim 1 , wherein the pressure of the ethylene stream is reduced to about 0.9 MPa or less.3. The process according to claim 1 , wherein the pressure of the ethylene stream is reduced to about 0.2 MPa or less.4. The process according to claim 1 , further comprising cooling the ethylene stream to a temperature of about 10° C. or less before step (a).5. The process according to claim 1 , further comprising cooling the compressed ethylene stream a temperature of about 10° C. or less.6. The process according to claim 1 , further comprising cooling the polymerization vent gas via heat exchange with the reduced pressure ethylene stream ...

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Номер записи: 4
30-05-2013 дата публикации

HIGH PRESSURE RECOVERY OF CARBON DIOXIDE FROM A FERMENTATION PROCESS

Номер: US20130133363A1
Автор: Find Rasmus, Poulsen Jan Flensted
Принадлежит: UNION ENGINEERING A/S

The present invention relates to a method for recovering carbon dioxide from a gaseous stream originating from a fermentation process by compression, absorption, condensation and distillation, wherein at least the absorption and condensation is performed under a high pressure of at least 30 bar. 117-. (canceled)18. A method for recovering carbon dioxide from a gaseous carbon dioxide stream originating from a fermentation process or a bottling line , the method comprises the steps of:a) providing the carbon dioxide stream originating from the fermentation process or bottling line;b) compressing the provided carbon dioxide stream by at least one compression step providing a compressed gaseous stream;c) subjecting the compressed gaseous stream to an absorption step providing at least a carbon dioxide rich gaseous stream;d) condensing the carbon dioxide rich gaseous stream in a condenser providing at least a condensate and a purge gas;e) distilling the liquid carbon dioxide stream to provide purified carbon dioxide. wherein the pressure of the compressed gaseous stream obtained in step b) is at least 30 bar, the temperature is within a range where there is substantially no condensation of carbon dioxide and that said pressure is maintained to at least step d) andwherein the condensation of step d) is performed by a coolant present in the brewery, or bottlery for example brine.19. A method according to claim 18 , wherein the absorbent of step c) is water or liquid carbon dioxide claim 18 , preferably liquid carbon dioxide.20. A method according to further comprising the step of transferring the condensed claim 18 , distilled carbon dioxide to a storage tank having a pressure that is lower than the condensation pressure of step d) claim 18 , whereby in addition to the liquid carbon dioxide is formed a gaseous stream and wherein said gaseous stream is further processed.21. A method according to claim 20 , wherein the further processing is selected from: transferring as a ...

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Номер записи: 5
30-05-2013 дата публикации

PROCESS AND APPARATUS FOR WATER PURIFICATION

Номер: US20130134102A1
Автор: Buchsbaum Norbert Nathan
Принадлежит:

A process for purifying water via freezing is disclosed. The process may include: contacting an aqueous mixture with a flotation medium, wherein the flotation medium has a density greater than or equal to the density of ice or hydrate and less than the density of the aqueous mixture or concentrated brine at its freezing point; reducing the temperature of the aqueous mixture to a temperature equal to or below the freezing point of the aqueous mixture to form ice or hydrate and a concentrate; phase separating the concentrate and the flotation medium; recovering the concentrate; and recovering the ice or hydrate and flotation medium as a slurry. Upon melting, phase separation of the resultant water from the flotation medium may provide a purified water product. 1. A process for purifying water , comprising:contacting an aqueous mixture with a flotation medium, wherein the flotation medium has a density greater than or equal to the density of ice or hydrate and less than the density of the aqueous mixture or concentrated brine at its freezing point;reducing the temperature of the aqueous mixture to a temperature equal to or below the freezing point of the aqueous mixture to form ice or hydrate and a concentrate;phase separating the concentrate and the flotation medium;recovering the concentrate; andrecovering the ice or hydrate and flotation medium as a slurry.2. The process of claim 1 , wherein the flotation medium has a density in the range from about 0.8 to about 1.0 g/cc.3. The process of claim 1 , further comprising melting the ice in the slurry of ice in flotation medium to form an aqueous fraction comprising water.4. The process of claim 1 , further comprising separating the aqueous fraction from the flotation medium.5. The process of claim 1 , further comprising washing the slurry with a wash liquid comprising at least one of fresh water claim 1 , the aqueous fraction claim 1 , and flotation medium claim 1 , which may be the same or different than the flotation ...

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Номер записи: 6
11-07-2013 дата публикации

APPARATUS AND PROCESS FOR WORKING UP A HYDROGEN- AND METHANE-COMPRISING STREAM

Номер: US20130174604A1
Автор: Gaffron Eberhardt, Jager Michael, Peschel Werner, Stabel Uwe
Принадлежит: BASF SE

The invention relates to an apparatus () for working up a hydrogen- and methane-comprising stream (), which comprises the following components: 110011. An apparatus () for working up a hydrogen- and methane-comprising stream (.) , which comprises the following components:{'b': 1', '1', '1, '(i) at least one heat exchanger (KS) for cooling a stream (.) to be worked up;'}{'b': 1', '2', '2', '3', '5, '(ii) at least one separation unit (A, A, A, A′) for purifying the stream () to be worked up to give a stream () rich in hydrogen and methane;'}{'b': 2', '5, '(iii) at least one cooling unit (KS) for cooling the stream () rich in hydrogen and methane; and'}{'b': 3', '6', '7', '8', '9, '(iv) at least one cryogenic gas separation unit (KS) for separating the stream () rich in hydrogen and methane into at least one hydrogen-rich stream () and at least one methane-rich stream (, ).'}210011123. The apparatus () according to claim 1 , wherein the stream (. claim 1 , . claim 1 , ) to be worked up comprises at least 40% by volume of hydrogen and at least 15% by volume of methane.31001. The apparatus () according to claim 1 , wherein the at least one heat exchanger (KS) is configured as a plate claim 1 , helical or shell-and-tube heat exchanger.41001. The apparatus () according to claim 1 , wherein the heat exchanger (KS) is made of steel claim 1 , copper claim 1 , aluminum claim 1 , glass claim 1 , plastic claim 1 , enamel and/or silicon carbide.5100122122. The apparatus () according to claim 1 , wherein the separation unit (A claim 1 , A claim 1 , A claim 1 , A′) comprises at least one phase separator (A) and/or at least one gas purification unit (A claim 1 , A′).610022. The apparatus () according to claim 5 , wherein the gas purification unit (A claim 5 , A′) is configured as an adsorptive gas purification unit.710022. The apparatus () according to claim 5 , wherein the gas purification unit (A claim 5 , A′) is configured as a continuously operated temperature-swing adsorption. ...

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Номер записи: 7
25-07-2013 дата публикации

System and Method of Capturing, Processing and Utilizing Stranded Natural Gas

Номер: US20130186132A1
Автор: Banszky Istvan
Принадлежит:

A system and method for utilizing stranded natural gas produced by one wellsite or facility site at a second wellsite or facility site as natural gas in a fuel supply system to reduce the dependency of diesel fuel in operating equipment at the second wellsite or facility site. The system and method includes transporting the gas collected at the first wellsite or facility site to the second wellsite or facility site as a gas mixture of natural gas and hydrocarbon liquids in vapor form at a pressure and temperature to prevent drop out of the hydrocarbon liquids during transport. At the second wellsite or facility site, the gas mixture is processed to recover the hydrocarbon liquids and to provide a compressed natural gas free of the hydrocarbon liquids to a fuel system for combustion by wellsite or facility site equipment. 1. A method of transporting , processing , and utilizing stranded natural gas , comprising the steps of:transporting compressed natural gas containing hydrocarbon liquids in vapor form captured from a natural gas producing well at a gas well location in pressure containers from said gas well location to a gas consuming location; andprocessing said compressed natural gas containing hydrocarbon liquids in vapor form at said gas consuming location to provide a compressed natural gas separate of said hydrocarbon liquids to a fuel system for consumption.2. A method of capturing , transporting , processing , and utilizing stranded natural gas , comprising the steps of:capturing natural gas from a natural gas producing well at a gas well location to provide raw natural gas;conditioning said raw natural gas to sweeten and dehydrate said raw natural gas to provide a sweet dry natural gas;compressing and cooling said dry natural gas to a pressure and temperature to provide a compressed natural gas containing hydrocarbon liquids in vapor form;transporting said compressed natural gas containing hydrocarbon liquids in vapor form in pressure containers from said ...

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Номер записи: 8
25-07-2013 дата публикации

Natural Gas Processing Plant

Номер: US20130186133A1
Автор: Golden Timothy Christopher, Hufton Jeffrey Raymond, Palamara John Eugene, Ploeger Jason Michael
Принадлежит: AIR PRODUCTS AND CHEMICALS, INC.

The invention provides systems and methods for separating ethane and heavier hydrocarbons from a natural gas stream. In aspects of the invention, an adsorption unit is integrated with a cryogenic gas processing plant in order to overcome methane recovery limitations by sending the tail gas from the adsorption unit to the cryogenic gas processing plant to recover methane that would otherwise be lost. 2. The system of claim 1 , further comprising a heat exchanger configured to receive and cool the first stream.3. The system of claim 1 , wherein the raw natural gas stream comprises at least 60% methane by volume.4. The system of claim 1 , wherein the raw natural gas stream comprises less than 2% carbon dioxide by volume.5. The system of claim 1 , wherein the raw natural gas stream comprises less than 100 ppm water vapor by volume.6. The system of claim 1 , wherein the pressure of the raw natural gas stream is greater than 700 psia.7. The system of claim 1 , wherein the adsorption unit is a pressure swing adsorption unit.8. The system of claim 6 , wherein the lowest pressure in the pressure swing adsorption unit during any single cycle is 1 atm.9. The system of claim 1 , wherein the adsorption unit is a vacuum swing adsorption unit.10. The system of claim 9 , wherein the lowest pressure in the vacuum swing adsorption unit during any single cycle is 0.05 atm.11. The system of claim 1 , wherein the beds of the adsorption unit have a length to diameter ratio less than 1.5.12. The system of claim 1 , wherein a portion of the compressed first stream is compressed to the pressure of the raw natural gas stream claim 1 , recycled claim 1 , and fed to the adsorption unit.13. The system of claim 1 , wherein the adsorption unit is portable.14. A system for treating raw natural gas comprising:(i) an adsorption unit configured to receive a raw natural gas stream and produce a first stream comprising methane and enriched in natural gas liquids and a second stream comprising methane ...

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Номер записи: 9
15-08-2013 дата публикации

PROCESS AND DEVICE FOR TREATING FLUE GASES

Номер: US20130205829A1
Автор: Kutzschbach Annett, Stamatov Veselin, Stoffregen Torsten, WALTER Thomas
Принадлежит: Linde-Kca-Dresden GmbH

A process and a device for treating a carbon dioxide-containing flue gas stream are described. At least a part of the carbon dioxide present is removed from the flue gas stream by means of a scrubber, forming a low carbon dioxide gas stream and a high carbon dioxide gas stream. The high carbon dioxide and water-saturated gas stream formed from the flue gas stream after removal of the carbon dioxide is cooled by means of a refrigeration system in a heat exchanger below the dew point temperature of the water contained in the gas stream and dried by condensing and separating out the water in a condensate separator . The dried gas stream meets the requirements of carbon dioxide products intended for further use. 14. Process for treating a carbon dioxide-containing flue gas stream , wherein at least a part of the carbon dioxide present is removed from the flue gas stream by means of a scrubber , forming a low carbon dioxide gas stream and a high carbon dioxide gas stream , characterized in that the high carbon dioxide and water-saturated gas stream formed from the flue gas stream after removal of the carbon dioxide is cooled by means of a refrigeration system () below the dew point temperature of the water contained in the gas stream and dried by condensing and separating out the water.24. Process according to claim 1 , characterized in that claim 1 , as a refrigeration system () claim 1 , an absorption refrigeration system is used.3. Process according to claim 2 , characterized in that the absorption refrigeration system is driven by means of thermal energy claim 2 , in particular in the form of steam and/or remote heat and/or direct firing.4. Process according to claim 3 , characterized in that claim 3 , in the case of treatment of a flue gas stream from a coal-fired combustion and/or gasification plant claim 3 , the thermal energy is obtained from vapours (BD) and/or vapour condensate of a coal drying stage connected upstream of the combustion and/or gasification ...

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Номер записи: 10
12-09-2013 дата публикации

CARBON DIOXIDE RECOVERY APPARATUS AND CARBON DIOXIDE RECOVERY METHOD

Номер: US20130233015A1
Автор: KITAMURA Hideo, Saito Satoshi, UDATSU Mitsuru
Принадлежит: KABUSHIKI KAISHA TOSHIBA

In one embodiment, a carbon dioxide recovery apparatus includes a heat exchanger which heats a first rich liquid, a flow divider which divides the first rich liquid heated by the heat exchanger into a second rich liquid and a third rich liquid, a first release device which heats the second rich liquid and discharges a first semi-lean liquid, a second release device which heats the third rich liquid and discharges a second semi-lean liquid, and a regeneration tower which heats the first and second semi-lean liquids to generate a lean liquid. The first release device heats the second rich liquid, using the lean liquid. The second release device heats the third rich liquid, using a carbon dioxide-containing steam discharged at the regeneration tower. The heat exchanger heats the first rich liquid, using the lean liquid which has passed through the first release device. 1. A carbon dioxide recovery apparatus comprising:an absorption tower which introduces therein carbon dioxide-containing gas and brings the carbon dioxide-containing gas into contact with an absorbing liquid for absorbing carbon dioxide to generate a first rich liquid having absorbed the carbon dioxide, and, thus, to discharge the first rich liquid;a heat exchanger which heats the first rich liquid;a flow divider which divides the first rich liquid heated by the heat exchanger into a second rich liquid and a third rich liquid;a first carbon dioxide release device which heats the second rich liquid and thereby discharges a first semi-lean liquid in which carbon dioxide-containing steam is released;a second carbon dioxide release device which heats the third rich liquid and thereby discharges a second semi-lean liquid in which carbon dioxide-containing steam is released; anda regeneration tower which heats the first semi-lean liquid and the second semi-lean liquid to release remaining carbon dioxide-containing steam, and, thus, to generate a lean liquid and thereby returns the lean liquid to the absorption ...

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Номер записи: 11
26-09-2013 дата публикации

Method and apparatus for separating air by cryogenic distillation

Номер: US20130247611A1
Автор: Golo Zick
Принадлежит: Individual

A method and apparatus for the cryogenic distillation of air to produce gaseous oxygen with a purity between 75 and 95 mol % and a pressure lower than 5.5 bar abs using a triple column having a high-pressure column, a low-pressure column, and a medium-pressure column, wherein the medium-pressure column is at least partially thermally coupled with the low-pressure column and the high-pressure column is also at least partially thermally coupled with the low-pressure column.

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Номер записи: 12
31-10-2013 дата публикации

Adsorbed Natural Gas Storage Facility

Номер: US20130283854A1
Автор: Al-Hashim Mohammed Ghalib, Al-Khawajah Anwar H., Ercan Cemal, Othman Rashid M., Wang Yuguo
Принадлежит: Saudi Arabian Oil Company

A method of using the natural gas storage facility to reduce the effect of diurnal demand on a natural gas source includes introducing natural gas into the natural gas storage facility, separating the natural gas into a heavy natural gas component and a light natural gas component, and retaining the components during a non-peak period of demand. The natural gas storage facility includes a guard bed system and an adsorption bed system. The method also includes releasing the heavy and light natural gas components, mixing them into a released natural gas component product and introducing it to the natural gas source during a peak period of demand. 2. The method of where the guard bed system includes a heavy natural gas adsorbent and is operable to retain the heavy natural gas component by adsorption.3. The method of where the heavy natural gas adsorbent is a microporous material.4. The method of where the light natural gas component is substantially free of propane.5. The method of where the light natural gas component is substantially free of ethane.6. The method of where the released natural gas product has a similar thermal value to the thermal value of the introduced natural gas.9. The method of further comprising the step of operating a storage facility compressor during the introduction of the natural gas into the natural gas storage facility claim 1 , where the natural gas storage facility further comprises the storage facility compressor that is coupled to the guard bed system.10. The method of further comprising the step of operating a storage facility compressor during the period of peak demand such that a less than atmospheric condition forms in the guard bed system claim 1 , where the natural gas storage facility further comprises the storage facility compressor that is coupled to the guard bed system.11. The method of further comprising the step of operating a storage compressor during the period of peak demand such that a less than atmospheric pressure ...

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Номер записи: 13
07-11-2013 дата публикации

Systems and Methods for Recovering Hydrocarbons From a Polyolefin Purge Gas Product

Номер: US20130291720A1
Автор: Blood Mark W., Duncan Theodore D., Fischer Donald A., Force Randall L., II James Leland, III Cloid Russell, JR. George W., Mosser Daniel W., Olson Robert D., Schwarz, Smith, Swecker
Принадлежит: UNIVATION TECHNOLOGIES, LLC

Provided are systems and methods for separating a purge gas recovered from a polyethylene product. The method includes recovering a polyethylene product containing one or more volatile hydrocarbons from a polymerization reactor and contacting the polyethylene product with a purge gas to remove at least a portion of the volatile hydrocarbons to produce a polymer product having a reduced concentration of volatile hydrocarbons and a purge gas product enriched in volatile hydrocarbons. The purge gas product is compressed to a pressure of 2,500 kPaa to 10,000 kPaa, and is then cooled and separated into at least a first product, a second product, and a third product. A portion of one or more of the first, second, or third products is then recycled as a purge gas, to the polymerization reactor, or to the purge gas product enriched in volatile hydrocarbons prior to compression, respectively. 1. A method for recovering hydrocarbons from a polyolefin purge gas product , comprising:recovering a polyolefin product comprising one or more volatile hydrocarbons from a polymerization reactor;{'sub': 2', '12, 'contacting the polyolefin product with a purge gas to remove at least a portion of the volatile hydrocarbons to produce a polymer product having a reduced concentration of volatile hydrocarbons and a purge gas product enriched in volatile hydrocarbons, wherein the volatile hydrocarbons comprise hydrogen, methane, one or more C-Chydrocarbons, or any combination thereof, and wherein the purge gas product is at a pressure of about 50 kPaa to about 250 kPaa;'}compressing the purge gas product to a pressure of about 2,500 kPaa to about 10,000 kPaa;cooling the compressed purge gas product;separating the cooled purge gas product into at least a first product, a second product, and a third product; andrecycling at least a portion of at least one of the first product as the purge gas, the second product to the polymerization reactor, or the third product to the purge gas product ...

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Номер записи: 14
14-11-2013 дата публикации

PROCESS AND APPARATUS FOR PRODUCTION OF AMMONIA SYNTHESIS GAS AND PURE METHANE BY CRYOGENIC SEPARATION

Номер: US20130298600A1
Автор: Hernandez Antoine, Hu Yuan-Jun, LIU Yanfang, Tsevery Jean-Marc
Принадлежит: L'Air Liquide Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude

A process for the production of ammonia synthesis gas and pure methane by cryogenic separation of a feed gas containing at least 75% hydrogen as well as methane and nitrogen, the feed gas is cooled in a heat exchanger and partially condensed, the partially condensed feed is sent to a phase separator, the gas from the phase separator is sent to a nitrogen wash column, liquid nitrogen is sent to the top of the nitrogen wash column and ammonia synthesis gas is removed from the top of the nitrogen wash column, the liquid from the phase separator is expanded and sent to a separation column, a nitrogen enriched gas stream is removed from the top of the column and a nitrogen depleted liquid stream rich in methane is removed from the bottom of the column and the nitrogen depleted liquid stream rich in methane is vaporized to form a pure methane product. 115-. (canceled)16. A process for the production of ammonia synthesis gas and pure methane by cryogenic separation of a feed gas containing at least 75% hydrogen as well as methane and nitrogen , the process comprising the steps of:cooling and partially condensing the feed gas in a heat exchanger to form a partially condensed feed;introducing the partially condensed feed to a phase separator;introducing gas from the phase separator to a nitrogen wash column;introducing liquid nitrogen to the top of the nitrogen wash column;withdrawing ammonia synthesis gas from the top of the nitrogen wash column;withdrawing liquid from the phase separator and expanding the liquid before sending the liquid to a separation column;withdrawing a nitrogen enriched gas stream from the top of the separation column;withdrawing a nitrogen depleted liquid stream rich in methane from the bottom of the separation column; andvaporizing the nitrogen depleted liquid stream rich in methane to form a pure methane product.17. The process according to claim 16 , wherein the feed gas comprises at least 5% nitrogen.18. The process according to claim 16 , ...

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Номер записи: 15
21-11-2013 дата публикации

Method and arrangement for expanding a gas stream comprising carbon dioxide

Номер: US20130305750A1
Автор: Olaf Stallmann
Принадлежит: Alstom Technology AG

The present disclosure relates to a method and an arrangement for expanding a gas stream comprising carbon dioxide, CO 2 . The method includes: removing CO 2 from a process gas to produce a CO 2 lean gas stream comprising residual CO 2 ; monitoring a temperature of the gas stream downstream of an expander; controlling a pressure of the gas stream downstream of the expander by means of a pressure controller; and overriding the pressure controller when the temperature downstream of the expander is below a predefined minimum temperature; whereby deposition of solid CO 2 from the residual CO 2 in the gas stream is avoided. The disclosure also relates to a gas cleaning system and a power plant, such as an oxy-combustion power plant, associated with the arrangement.

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Номер записи: 16
02-01-2014 дата публикации

METHOD FOR CONTROLLING ACIDIC COMPOUNDS PRODUCED FOR OXY-COMBUSTION PROCESSES

Номер: US20140000311A1
Автор: Darde Arthur EO, Dubettier Richard, McDonald Dennis K.
Принадлежит:

The present invention relates generally to the field of emissions control and, in particular to a new and useful method and/or system by which to control, treat and/or mitigate various liquid-based acidic compounds that are produced during oxy-combustion (e.g., during a compression step and/or cooling step) from various gaseous acid compounds and/or gaseous acid precursor compounds (e.g., SO, NO, etc.). In one embodiment, the present invention relates to a method and/or system by which such one or more liquid-based acid compounds are recycled into the flue gases and/or into one or more of the emissions control and/or flue gas treatment equipment of an oxy-combustion power generation system. 1. A method for treating one or more acidic compounds generated during an oxy-combustion process , the method comprising the steps of:(i) generating a flue gas stream as a result of the oxy-combustion of at least one carbonaceous fuel, wherein the flue gas stream contains at least one type of gaseous acid compound and/or gaseous acid precursor compound;(ii) treating the flue gas stream to remove at least a portion of at least one gaseous acid compound and/or gaseous acid precursor compound present therein via the use of at least one flue gas treatment device;(iii) subjecting at least a portion of the flue gas stream from Step (ii) to at least one compression step and/or cooling step so as to remove at least one additional gaseous acid compound and/or gaseous acid precursor compound present therein, wherein the compression step and/or cooling step yields a liquid-based acidic waste stream generated as a result of the removal of the at least one additional gaseous acid compound and/or gaseous acid precursor compound and an acid-depleted, or acid-lean, flue gas stream;(iv) recycling at least a portion of the liquid-based acidic waste stream to the at least one flue gas treatment device of Step (ii) for treatment, or neutralization, therein; and(v) subjecting the acid-depleted, or ...

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Номер записи: 17
03-04-2014 дата публикации

Cryocooler-based gas scrubber

Номер: US20140090404A1
Автор: Jost Diederichs, Michael Bancroft Simmonds, Ronald Sager
Принадлежит: Quantum Design Inc

A cryocooler-based gas scrubber, or cryocooler-based gas purifier, utilizes the cooling power of a cryocooler to cool and condense cryogen gas forming coalesced impurities which are then filtered through a filter matrix, such as for example a fiberglass filter matrix. The scrubber may further comprise a counter-flow heat exchanger for warming the purified gas prior to dispensing at an outlet for storage or consumption.

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Номер записи: 18
03-04-2014 дата публикации

Cryogenic Separation of Synthesis Gas

Номер: US20140090416A1
Автор: McNeil Brian Alfred, Weaver Andrew, Winter David Graham
Принадлежит: AIR PRODUCTS AND CHEMICALS, INC.

A process and apparatus for separating a feed containing hydrogen, carbon monoxide, methane, and optionally nitrogen to form a product gas having a desired H:CO molar ratio and optionally a hydrogen product gas and a carbon monoxide product gas. The feed is partially condensed to form a hydrogen-enriched vapor fraction and a carbon monoxide-enriched liquid fraction. The hydrogen-enriched vapor fraction and carbon monoxide-enriched liquid fraction are combined in a regulated manner to form an admixture, which is cryogenically separated to form the product mixture having the desired H:CO molar ratio. 112-. (canceled)13. An apparatus for separating a feed comprising hydrogen , carbon monoxide , methane , and optionally nitrogen , comprising:a first heat exchanger for partially condensing the feed to form a partially condensed feed;a phase separator for separating the partially condensed feed into a hydrogen-enriched vapor fraction and a carbon monoxide-enriched liquid fraction;a means for feeding the partially condensed feed to the phase separator from the first heat exchanger, the means for feeding the partially condensed feed configured so that no portion of the partially condensed feed passes through an expander when feeding the partially condensed feed to the phase separator from the first heat exchanger;a means for combining a portion or all of the carbon monoxide-enriched liquid fraction with a regulated portion of the hydrogen-enriched vapor fraction to form a two-phase admixture, the means for combining operatively disposed to receive the hydrogen-enriched vapor fraction from the phase separator without any other phase separator operatively disposed between the means for combining and the phase separator;a means for feeding at least one of the portion or all of the carbon monoxide-enriched liquid fraction and at least a portion of the two-phase admixture to the first heat exchanger;a first fractionator for cryogenically separating the at least a portion of the ...

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Номер записи: 19
07-01-2016 дата публикации

METHOD AND DEVICE FOR GENERATING GASEOUS COMPRESSED NITROGEN

Номер: US20160003531A1
Автор: Goloubev Dimitri
Принадлежит:

Method and device for generating gaseous compressed nitrogen by the low-temperature separation of air in a distillation column system, having a pre-column, a high-pressure column and a low-pressure column. The feed air is compressed, purified in a purification apparatus and cooled. A first sub-flow of the cooled feed air is introduced in a predominantly liquid state into the distillation column system. A gaseous fraction from the pre-column in introduced into the liquefaction chamber of a pre-column head condenser with liquid formed therein fed as reflux into the pre-column. A first gaseous nitrogen product fraction is drawn from the high-pressure column, heated, and obtained as first gaseous compressed nitrogen product. At least a part of the second sub-flow is introduced into the evaporation chamber of the pre-column head condenser. A third sub-flow of the cooled feed air is expanded to perform work and subsequently introduced into the liquefaction chamber. 2. The method as claimed in claim 1 , characterized in that a second gaseous nitrogen product fraction is drawn off from the pre-column in gaseous form claim 1 , warmed in the main heat exchanger and obtained as to second gaseous compressed product.3. The method as claimed in claim 1 , characterized in that less than 30 mol % of the input air quantity is fed in the liquid state into the distillation column system.4. The method as claimed in claim 1 , characterized in that the total quantity of oxygen-enriched currents that are fed in the liquid state from the pre-column and the evaporation chamber of the pre-column head condenser into the high-pressure column and the low-pressure column is less 14% than the input air quantity.5. The method as claimed in claim 1 , characterized in thatthe second partial current is compressed before being cooled in the main heat exchanger to a high pressure that is higher than the operating pressure of the pre-column, and is liquefied or pseudo-liquefied in the main heat ...

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Номер записи: 20
07-01-2016 дата публикации

SYSTEMS AND METHODS FOR RECOVERING CARBON DIOXIDE FROM INDUSTRIALLY RELEVANT WASTE STREAMS, ESPECIALLY ETHANOL FERMENTATION PROCESSES, FOR APPLICATION IN FOOD AND BEVERAGE PRODUCTION

Номер: US20160003532A1
Автор: Hotton Kevin D, Lewis Matthew J, Young Andrew C
Принадлежит: PIONEER ENERGY INC

A system for recovering CO2 via liquefaction and purification from a vented CO2 gas stream comprising a compressor; a dehydrator; a scrubber; a refrigerator having one or more stages; and a separation subsystem adapted to ensure non-condensable gas content in the final product meets industry standards. The liquid CO2 product is of sufficient purity to be used in applications requiring beverage-grade CO2. The system can be utilized as a single-brewery installation to reduce venting from ethanol fermenters to an absolute minimum, produce a high purity liquid CO2 product for use in-process or external sales, and offset the purchasing of expensive, industrial CO2 of inferior purity. 1. An apparatus for recovering via purification and liquefaction of carbon dioxide gas from a vented CO2 waste gas stream , comprising:a chassis adapted for installation inside a space-limited production facility;one or more compressors for compressing the raw CO2 gas stream;one or more dehydrators for removing water from the compressed CO2 gas stream;one or more scrubbers containing solid-state adsorbent for deodorizing and purifying the inlet CO2 gas stream;a refrigerator having one or more stages for lowering a temperature of the dehydrated, deodorized, compressed CO2 stream; anda separation subsystem system adapted to separate the liquefied CO2 product from any remaining contamination by non-condensable gases, especially oxygen.2. The apparatus of claim 1 , wherein the final oxygen content is less than 30 parts per million.3. The apparatus of claim 1 , wherein the final water content is less than 20 parts per million.4. The apparatus of claim 1 , wherein the liquid CO2 product has no foreign color claim 1 , taste claim 1 , or odor.5. The apparatus of claim 1 , wherein the liquid CO2 product meets a beverage-grade standard.6. The apparatus of claim 1 , wherein the one or more compressors compress the raw natural gas stream to a pressure range of 75 psia to 300 psia.7. The apparatus of ...

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Номер записи: 21
03-01-2019 дата публикации

SYSTEM AND METHOD FOR RARE GAS RECOVERY

Номер: US20190003766A1
Автор: Howard Henry E.
Принадлежит:

A system and method for argon and nitrogen extraction and liquefaction from a low-pressure tail gas of an ammonia production plant is provided. The preferred tail gas of the ammonia production plant comprises methane, nitrogen, argon, and hydrogen. The disclosed system and method provides for the methane rejection via rectification and hydrogen rejection by way of a side stripper column or phase separator. The resulting nitrogen and argon containing stream is separated and liquefied in a double column distillation system. 1. A method for recovering a rare gas from a pre-purified feed gas comprising hydrogen , nitrogen , methane , argon , and one or more rare gases , the method comprising the steps of:directing the pre-purified feed gas to a rectification column;separating the pre-purified feed gas in a rectification column to produce a methane-rich liquid column bottoms containing the one or more rare gases and an hydrogen-nitrogen rich gas overhead;conditioning the methane-rich liquid column bottoms containing rare gases to produce a stream having a vapor fraction greater than 90% and at or near saturation;directing the methane rich stream and a rare gas lean stream to an auxiliary wash/rectifying column, wherein the rare gas lean stream is a liquid stream extracted from the rectification column or a liquid nitrogen stream;rectifying the two phase methane rich stream and the rare gas lean stream to produce a liquid bottoms rare gas concentrate and a methane-rich overhead; andseparating one or more rare gases from the liquid bottoms rare gas concentrate to produce a rare gas product stream.2. The method of claim 1 , wherein the feed gas is a tail gas from an ammonia plant.3. The method of wherein the rare gas is krypton or xenon.4. The method of claim 1 , wherein the feed gas contains greater than about 50% nitrogen by mole fraction.5. The method of wherein the feed gas is a high pressure feed gas having a pressure of between about 300 psia to 500 psia.6. The method ...

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Номер записи: 22
12-01-2017 дата публикации

FREEZING DESALINATION MODULE

Номер: US20170008778A1
Автор: AL-BEIRUTTY MOHAMMED HUSSAIN, ALY SAMIR ELSAYED, BOUGUECHA SALAH AL-TAHAR
Принадлежит:

The freezing desalination module includes a pair of desalination units coupled to a pair of refrigeration units. A pre-cooling tank and a freezing tank is disposed in each desalination unit. A feed line, a desalinated line, and a brine line are coupled to the freezing desalination module to respectively enable feeding of raw feed water (RFW) through the module, collect desalinated water, and remove brine/ice wash for further processing. The RFW in the pre-cooling tank is pre-cooled by a pair of heat exchangers, through which flows cooler desalinated water and the brine/ice wash, respectively. The freezing tank of both desalination units are in communication with the refrigeration units so that as one freezing tank performs freezing, the other is melting. A perforated plate divides each freezing tank into an upper chamber where freezing desalination process occurs and a lower chamber where brine/ice wash collect and feed through the pre-cooling tank. 1. A freezing desalination module , comprising:a pair of refrigeration units;a pair of desalination units coupled to the refrigeration units, each of the desalination units producing desalinated water and brine/ice wash from selective freezing and melting of raw feed water by the refrigeration units, each of the desalination units having a first tank for holding and pre-cooling raw feed water and a second tank for freezing and melting the raw feed water;a feed line coupled to each of the desalination units to feed raw feed water to each of the first tanks;a desalination line coupled to each of the first tanks to collect desalinated water;a brine line coupled to each of the first tanks to discharge the brine/ice wash;a plurality of pumps coupled to the feed lines, the first tanks, and the second tanks to transfer raw feed water, desalinated water, and brine/ice-wash therebetween; anda power source coupled to the desalination units to provide power for operation of the refrigeration units and the pumps;wherein each of the ...

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Номер записи: 23
11-01-2018 дата публикации

AIR SEPARATION METHOD AND APPARATUS

Номер: US20180010848A1
Автор: Prosser Neil M.
Принадлежит:

A method and apparatus for separating air in which an oxygen-rich liquid stream is pumped and then heated within a heat exchanger to produce an oxygen product through indirect heat exchange with first and second boosted pressure air streams. The first boosted pressure air stream is cold compressed at an intermediate temperature of the heat exchanger, reintroduced into the heat exchanger at a warmer temperature and then fully cooled and liquefied. The second boosted pressure air stream, after having been partially cooled, is expanded to produce an exhaust stream that is in turn introduced into a lower pressure column producing the oxygen-rich liquid. The second boosted pressure air stream is partially cooled to a temperature no greater than the intermediate temperature at which the cold compression occurs so that both the first and second boosted pressure air streams are able to take part in the heating of the oxygen-rich stream. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. (canceled)22. (canceled)23. (canceled)24. (canceled)25. (canceled)26. (canceled)27. (canceled)28. (canceled)29. An apparatus for separating air comprising:one or more main air compressors configured for producing a stream of compressed and purified air, wherein the stream of compressed and purified air is split into a first part of the stream of compressed and purified air, a second part of the stream of compressed and purified air that is further compressed in a first booster compressor to produce a first boosted pressure air stream, and a third part of the stream of compressed and purified air that is further compressed in a second booster compressor to produce a second boosted pressure air stream;a main heat exchange system configured to cool the first part of the ...

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Номер записи: 24
19-01-2017 дата публикации

Increasing Efficiency In An LNG Production System By Pre-Cooling A Natural Gas Feed Stream

Номер: US20170016668A1
Автор: Denton Robert D., Gupte Parag A., Huntington Richard A., JR. Fritz, Pierre
Принадлежит:

Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit. The LNG is compressed prior to being cooled by the LIN. 1. A liquefied natural gas production system , the system comprising:a natural gas stream from a supply of natural gas;a refrigerant stream from a refrigerant supply;at least one heat exchanger that exchanges heat between the refrigerant stream and the natural gas stream to at least partially vaporize the refrigerant stream and at least partially condense the natural gas stream;a natural gas compressor that compresses the natural gas stream to a pressure of at least to 135 bara to form a compressed natural gas stream;a natural gas cooler that cools the compressed natural gas stream after being compressed by the natural gas compressor; anda natural gas expander that expands the compressed natural gas to a pressure less than 200 bara, but no greater than the pressure to which the natural gas compressor compresses the natural gas stream, after being cooled by the natural gas cooler;wherein the natural gas expander is connected to the at least one heat exchanger to supply natural gas thereto.2. The liquefied natural gas production system of claim 1 , wherein the natural gas compressor compresses the natural gas stream to a pressure greater than 200 bara.3. The liquefied natural gas production system of claim 1 , wherein the natural gas expander expands the compressed natural gas stream to a pressure less than 135 bara.4. The liquefied natural gas production system of claim 1 , wherein the at least one heat exchanger comprises a first heat exchanger claim 1 , and further comprising a second heat exchanger that cools the natural gas stream prior to the natural gas stream being compressed in the natural gas compressor.5. The liquefied natural gas production system of claim 4 , wherein the ...

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Номер записи: 25
18-01-2018 дата публикации

METHODS AND SYSTEMS FOR TREATING FUEL GAS

Номер: US20180016977A1
Автор: Denton Robert D., Nagavarapu Ananda K., VICTORY Donald J.
Принадлежит:

Methods and systems for treating a compressed gas stream. The compressed gas stream is cooled and liquids are removed therefrom to form a dry gas stream, which is chilled in a first heat exchanger. Liquids are separated therefrom, thereby producing a cold vapor stream and a liquids stream. A first part of the cold vapor stream is expanded to produce a cold two-phase fluid stream, and a second part of the cold vapor stream is cooled to form a cooled reflux stream. Various streams are fed into a separation column to produce a cold fuel gas stream and a low temperature liquids stream. The second part of the cold vapor stream is cooled by the cold fuel gas stream, which becomes a warmed fuel gas stream that is compressed and used with the low-temperature liquids stream to chill the dry gas stream and to cool the compressed gas stream. 1. A method for treating a compressed gas stream , comprising:cooling the compressed gas stream to form a cool compressed gas stream;removing liquids from the cool compressed gas stream to form an overhead vapor stream;dehydrating the overhead vapor stream to form a dry gas stream;chilling the dry gas stream in a first heat exchanger to produce a dry cold fluid stream;separating liquids from the dry cold fluid stream, thereby producing a cold vapor stream and a liquids stream;expanding a first part of the cold vapor stream in a turbo-expander to produce a cold two-phase fluid stream;cooling a second part of the cold vapor stream in a reflux heat exchanger to form a cooled reflux stream;feeding the liquids stream, the cold two-phase fluid stream, and the cooled reflux stream into a separation column to produce a cold fuel gas stream and a low temperature liquids stream;using the cold fuel gas stream to cool the second part of the cold vapor stream in the reflux heat exchanger, the cold fuel gas stream becoming a warmed fuel gas stream;compressing the warmed fuel gas stream in a compressor to form a compressed cold fuel gas stream;using the ...

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Номер записи: 26
21-01-2016 дата публикации

ALKALINITY CONTROL AGENT SUPPLY METHOD AND APPARATUS FOR COMPRESSOR IMPURITY SEPARATION MECHANISM

Номер: US20160018159A1
Автор: NAITO Toshiyuki
Принадлежит: IHI CORPORATION

Exhaust gas from which impurities have been removed through pressurization and cooling by a compressor-based impurity separation mechanism is further cooled by a refrigerator-type heat exchanger. Drain produced from the cooling by the refrigerator-type heat exchanger is discharged and supplied as an alkalinity control agent to at least upstream of an aftercooler in a first impurity separator.

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Номер записи: 27
16-01-2020 дата публикации

METHOD OF SEPARATING COMPONENTS OF A GAS

Номер: US20200018545A1
Автор: Baxter Larry, Chamberlain Jacom, Hoeger Chris, Stitt Kyler
Принадлежит: NewVistas Capital, LLC

The disclosure provides a method for separating components of a gas. A feed gas stream is cooled in a first vessel. The feed gas stream includes methane, water, carbon dioxide, and Natural Gas Liquids. The feed gas stream is cooled in a first vessel. A portion of the water condenses to form a primary liquid stream, resulting in a first depleted gas stream, which is cooled in a second vessel. A portion of the NGLs condense to form a secondary liquid stream, resulting in a second depleted gas stream, which is cooled in a condensing exchanger. A first portion of the methane condenses to form a liquid methane stream, resulting in a third depleted gas stream, which is cooled in a third vessel. A portion of the carbon dioxide condenses, desublimates, or condenses and desublimates as a final product stream, also resulting in a fourth depleted gas stream. 1. A method for separating components of a gas comprising:cooling a feed gas stream in a first vessel, wherein the feed gas stream comprises methane, water, carbon dioxide, and NGLs, such that a portion of the water condenses to form a primary liquid stream, resulting in a first depleted gas stream;cooling the first depleted gas stream in a second vessel such that a first portion of the NGLs condense to form a secondary liquid stream, resulting in a second depleted gas stream;cooling the second depleted gas stream in a condensing exchanger such that a first portion of the methane condenses to form a liquid methane stream, resulting in a third depleted gas stream; andcooling the third depleted gas stream in a third vessel such that a first portion of the carbon dioxide condenses, desublimates, or condenses and desublimates as a final product stream, resulting in a fourth depleted gas stream.2. The method of claim 1 , wherein cooling the second depleted gas stream condenses a second portion of the carbon dioxide into the first liquid methane stream.3. The method of claim 1 , wherein the NGLs comprise compounds selected from ...

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Номер записи: 28
16-01-2020 дата публикации

Method for separating components of a gas

Номер: US20200018546A1
Автор: Chris Hoeger, Jacom Chamberlain, Kyler Stitt, Larry Baxter
Принадлежит: Newvistas Capital LLC

A method is disclosed for separating components of a gas. A feed gas stream is cooled in the first vessel. The feed gas stream comprises methane, carbon dioxide, and a secondary component. A first portion of the secondary component condenses, desublimates, or a combination thereof to form a primary stream, resulting in a first depleted gas stream. The first depleted gas stream is cooled in a condensing exchanger such that a first portion of the methane condenses as a first liquid methane stream, resulting in a second depleted gas stream. The second depleted gas stream is cooled in the second vessel such that a first portion of the carbon dioxide desublimates to form a solid product stream, resulting in a third depleted gas stream.

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Номер записи: 29
16-01-2020 дата публикации

Method of separating components of a gas

Номер: US20200018547A1
Автор: Chris Hoeger, Jacom Chamberlain, Kyler Stitt, Larry Baxter
Принадлежит: Newvistas Capital LLC

A method is disclosed for separating components of a gas. A feed gas stream is passed into a vessel. The feed gas stream includes methane, carbon dioxide, and water. The feed gas stream is cooled in the vessel such that a portion of the methane and a portion of the carbon dioxide condense and a portion of the water desublimates, resulting in a product stream and a depleted gas stream exiting the vessel.

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Номер записи: 30
29-01-2015 дата публикации

Methods, Devices, and Systems for the Separation and Concentration of Isotopologues

Номер: US20150027165A1
Автор: Charlie Booth, Keith Moser, Randall N. Avery
Принадлежит: Exelon Generation Co LLC, Industrial Idea Partners

The present invention is a novel method for removing tritium oxide contamination from a solution with water. The method captures the tritium oxide in a much smaller volume suitable for economical disposal. In so doing the original water is decontaminated of the tritium oxide and may be discharged.

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Номер записи: 31
05-02-2015 дата публикации

METHOD FOR PROCESSING RADIOACTIVELY-CONTAMINATED WATER

Номер: US20150038760A1
Автор: WAKAYAMA Seiko, WAKAYAMA Toshitsugi
Принадлежит: Showa Freezing Plant Co., Ltd.

The present invention provides an efficient and low cost method for processing radioactively-contaminated water. The method for processing radioactively-contaminated water comprising a freeze concentration step of generating ice having lowered concentration of radioactive substance from radioactive substance containing contaminated water and concentrating the radioactive substances in the residual contaminated water by the interface progressive freeze concentration process. Preferably, the method further comprises a nitrogen substitution step of reducing dissolved oxygen in the contaminated water and adding nitrogen gas to the contaminated water, as a previous step of the freeze concentration step. Preferably, the radioactive substance is radioactive cesium. 1. A method for processing radioactively-contaminated water comprising:adding nitrogen gas to contaminated water containing an initial concentration of a radioactive substance, to chemically stabilize the contaminated water by reducing dissolved oxygen therein; andafter adding nitrogen gas, freezing at least a portion of the contaminated water such that the frozen portion has a lower concentration of the radioactive substance than the initial concentration, and a residual unfrozen portion of the contaminated water has a higher concentration of the radioactive substance than the initial concentration.2. (canceled)3. (canceled)4. The method for processing radioactively-contaminated water according to claim 1 , wherein the radioactive substance is radioactive cesium. This application claims priority to Japanese Patent Application No. 2013-157310, filed on Jul. 30, 2013, which is hereby incorporated by reference.The present invention relates to a processing method for decontaminating radioactive substances from radioactively-contaminated water.A large amount of contaminated water containing radioactive cesium caused by the accident of the nuclear power plant is generating, therefore, developing an efficient process ...

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Номер записи: 32
11-02-2016 дата публикации

Cryogenic System for Removing Acid Gases from a Hydrocarbon Gas Stream

Номер: US20160040930A1
Автор: Cullinane John Tim, Northrop Paul Scott
Принадлежит:

A system for removing acid gases from a raw gas stream is provided. The system includes a cryogenic distillation tower. The cryogenic distillation tower has a controlled freezing zone that receives a cold liquid spray comprised primarily of methane. The tower receives and then separates the raw gas stream into an overhead methane gas stream and a substantially solid material comprised on carbon dioxide. The system includes a collector tray below the controlled freezing zone. The collector tray receives the substantially solid material as it is precipitated in the controlled freezing zone. The system also has a filter. The filter receives the substantially solid material and then separates it into a solid material comprised primarily of carbon dioxide, and a liquid material comprising methane. The solid material may be warmed as a liquid and sold, while the liquid material is returned to the cryogenic distillation tower. 1. A system for removing acid gases from a raw gas stream , comprising:a cryogenic distillation tower, the tower having a controlled freezing zone that receives a cold liquid spray comprised primarily of methane, the tower receiving and then separating the raw gas stream into an overhead methane gas stream and a substantially solid material comprised of precipitated carbon dioxide;refrigeration equipment downstream of the cryogenic distillation tower for cooling the overhead methane stream and returning a portion of the overhead methane stream to the cryogenic distillation tower as the cold liquid spray;a collector tray below the controlled freezing zone for receiving the substantially solid material as it is precipitated in the controlled freezing zone and directing the substantially solid material out of the cryogenic distillation tower;a first filter for receiving the substantially solid material from the cryogenic distillation tower and separating the substantially solid material into a solid component comprised primarily of carbon dioxide, and a ...

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Номер записи: 33
24-02-2022 дата публикации

METHOD AND APPARATUS FOR SEPARATION OF 13C16O FROM NATURAL CO

Номер: US20220054980A1
Автор: Alekseev Alexander
Принадлежит:

Method and Apparatus for separating at least one CO isotope compound, especially isotope compound 13C16O, from natural CO, comprising: 1. Method for separating at least one CO isotope compound , especially isotope compound 13C16O , from natural CO , comprising:{'b': 110', '112', '114', '116', '118', '120', '112, 'i': 'b', 'operating a rectification column system (), comprising a plurality of rectification sections (,,,,) arranged adjacent to one another in a chain-like manner, including an upper rectification section and a plurality of lower rectification sections, wherein maintaining evaporation of liquid present in the rectification column is achieved by heating the liquid by heating means provided in each rectification section, wherein the heating of at least one of the plurality of rectification sections is provided by heating means comprising a heat pump cycle (), wherein preferably the heating at the least one further one of the plurality of rectification sections is provided by means comprising an electrical heater.'}2132112122112. Method according to claim 1 , wherein the heating in the upper rectification section is provided to utilize a heat pump cycle connecting a reboiler () of the upper rectification section () and a condenser () associated with upper rectification section ().3. Method according to claim 1 , wherein pressures within the rectification column system range from 0.5 bar abs in the upper rectification section to around 3 bar abs in a lowermost rectification section.4. Method according to claim 1 , wherein temperatures within the rectification column system range from 77K in the upper rectification section to around 95 K in a lowermost rectification section.5122210220. Method according to claim 1 , wherein the liquefied working fluid of the heat pump cycle is supplied to the condenser () using at least one pump ( claim 1 ,).6. Method according to claim 1 , wherein the working fluid of the heat pump cycle is nitrogen.7. Method according to ...

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Номер записи: 34
19-02-2015 дата публикации

Methods of desalination and rinsing, and systems therefor

Номер: US20150047388A1
Автор: Alexander Brodt
Принадлежит: SGBD Technologies Ltd

Desalination and rinsing methods and systems are provided, which use a liquid column to efficiently perform freeze desalination and enable recyclable washing of produced minerals or combustible material. The liquid column comprises alternating layers of water immiscible liquids and water solutions which form a vertical density gradient (discrete or continuous) and exhibit a lower freezing zone from which ice floats to an upper melting zone. Cooling of introduced upwards flowing salt solutions is carried out by a countering downwards flow of cold water immiscible liquid. The process is cyclical, involves few if any mechanical moving parts and is easily controllable and adaptable to varying desalination circumstances. Rinsing of minerals or combustible material may be integrated in the heat and matter flows of the desalination system to allow effective rinsing, desalination and recycling of the used water.

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Номер записи: 35
16-02-2017 дата публикации

METHOD FOR TREATING AN AQUEOUS SOLUTION CONTAINING DISSOLVED MATERIALS BY CRYSTALLIZATION OF CLATHRATES HYDRATES

Номер: US20170044024A1
Автор: Mottet Bruno
Принадлежит: BGH

A method is disclosed for treating an aqueous solution containing dissolved materials that are crystallisable by crystallization of clathrates hydrates of a host molecule which crystallize at atmospheric pressure at temperatures higher than the temperature of ice crystallization. This method allows purified water and solid materials or solutions which are highly concentrated in dissolved materials to be produced simultaneously. The disclosure also relates to the implementation of this method. 1. A method for treating an aqueous solution containing dissolved materials that are able to crystallize or precipitate , by crystallization of clathrates hydrates of a host molecule which crystallize at atmospheric pressure at temperatures higher than the temperature of ice crystallization , said clathrates hydrates being less dense than said aqueous solution containing dissolved materials , wherein the following steps are carried out:{'b': '1', 'a) the aqueous solution is cooled, in first cooling means, to a temperature T that is higher than the temperature of ice crystallization and lower than the crystallization temperature Teq of the clathrates hydrates, and this cooled aqueous solution is introduced into a thermally insulated reactor;'}{'b': '2', 'b) a quantity of the host molecule is added into the reactor containing the cooled aqueous solution, such that the temperature T of the aqueous solution remains, following this addition and following the exothermic release due to the crystallization of the clathrates hydrates, lower than the temperature Teq, whereby the clathrates hydrates of the host molecule crystallize homogeneously in all of the volume of the aqueous solution by forming a suspension of clathrates hydrates crystallized in an aqueous solution concentrated in dissolved materials that may further contain crystallized or precipitated dissolved materials;'}c) the suspension formed during step b) is sampled in the reactor, and said suspension is sent to a decanter ...

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Номер записи: 36
16-02-2017 дата публикации

Method for purifying, cooling and separating a gaseous mixture and associated apparatus

Номер: US20170045291A1
Автор: Antony CORREIA ANACLETO, Benoit Davidian, Bernard Saulnier, Clement Lix, Erwan LE GULUDEC, Guillaume Cardon, Quentin Saniez
Принадлежит: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude

The invention relates to a method for cooling, purifying and separating a gaseous mixture containing at least one impurity, in which the gaseous mixture is cooled to a temperature no higher than the temperature at which the at least one impurity solidifies in a heat exchanger having cooling passages, the cooling passages being at least partially covered with a coating and/or physically treated and/or chemically treated, the coating and/or the treatment serving to limit or even prevent the solidified impurity from forming and/or adhering to a surface of the passages; at least one portion of the solidified impurity exiting the cooling passages of the heat exchanger is collected; and the gaseous mixture is withdrawn from the heat exchanger.

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Номер записи: 37
15-02-2018 дата публикации

PROCESS FOR OPTIMIZING REMOVAL OF CONDENSABLE COMPONENTS FROM A FLUID

Номер: US20180045461A1
Автор: MADDOCKS James, MCKAY N. Wayne
Принадлежит:

A method for removing condensable components from a fluid containing condensable components. The method involves optimizing the temperature of an initial feed stream including the condensable components through heat exchange and cooling to condense liquids there from. The liquids are removed to form a gas stream which is then compressed and after-cooled to form a high pressure stream. A portion of the high pressure stream is expanded to form a cooled low pressure stream which is mixed with the initial feed stream to augment cooling and condensation of condensable components in the initial feed stream. 1. A method for removing condensable components from a fluid containing said condensable components , comprising:cooling an initial feed stream including said condensable components by heat exchange to condense liquids there from and removing said liquids to form a gas stream;compressing and after-cooling the gas stream to form a high pressure stream;expanding at least a portion of the high pressure stream to form a cooled low pressure stream;mixing with said cooled low pressure stream and said initial feed stream to augment cooling and condensation of condensable components to form a mixture;separating said mixture into a liquid stream and a gas stream;contacting the separated liquid stream and the separated gas stream with said initial feed stream for heat exchange through a gas-liquid heat exchange operation in sequence with a gas-gas heat exchange operation or absent gas-liquid heat exchange where hydrocarbon recovery is unfeasible;manipulating the composition of all streams during said method to prevent hydrate formation; andrecovering any hydrocarbons.2. The method as set forth in claim 1 , including the step of determining the hydrocarbon and water content of said initial fuel stream.3. The method as set forth in or claim 1 , further including the step of operating the method at a temperature range outside that where hydrates form.4. The method as set forth in ...

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Номер записи: 38
10-03-2022 дата публикации

Recrystallization Water Treatment System and Heat-Exchange Devices (Embodiments) for Its Implementation

Номер: US20220073374A1
Автор: BLINOV Denis Dmitrievich, MURINSKIY Evgeniy Yurievich
Принадлежит: LLC PRISTINAM

The present invention relates to treatment systems for polluted and sea water by recrystallization and may be used in everyday life, the food industry, in the catering business and healthcare. 1. Recrystallization water treatment system that contains at least two heat-exchange devices with chambers for water freezing and ice melting , cooling and heating components , a water circulation loop , which is connected with the chambers of the heat-exchange devices capable of draining pre-treated water from one chamber and supplying it to another one for final treatment; a refrigerant circulation loop connected with cooling and heating components capable of alternating water freezing and ice melting steps in chambers of the heat-exchange devices and transfer of the heat of the refrigerant formed in the chamber during water freezing into the ice melting chamber; and the control and monitoring tool connected with the water and refrigerant circulation loops and capable of reversing water and refrigerant streams during alternating water freezing and ice melting steps; thereat , the water circulation loop contains a tool for the initial water supply , a tool for draining polluted water concentrate , a tool for draining pre-treated water , a tool for draining treated water , a pure water tank , and the tank for polluted water concentrate; while the refrigerant circulation loop contains a compressor , a water-cooled condenser that exchanges heat with the tank for polluted water concentrate after its draining from heat-exchange chambers , and two heat exchangers; wherein heat-exchange devices are cascaded one under another , and each device contains one chamber with the possibility to divide it into intercommunicated cooling and recirculation cavities; and to circulate water between the said cavities forming equipotential surfaces in the cooling cavity during water freezing; the refrigerant circulation loop contains an additional air-cooled condenser , the inlet and outlet of ...

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Номер записи: 39
22-05-2014 дата публикации

Scrubber System With Moving Adsorbent Bed

Номер: US20140137598A1
Автор: Fleming, JR. Malcolm N., Thibaud-Erkey Catherine
Принадлежит: CARRIER CORPORATION

A regenerative carbon dioxide removal system () is provided onboard the container () through which air from within the cargo box () may be circulated for removing at least a portion of the carbon dioxide present in the air. The regenerative carbon dioxide removal system () includes a scrubber module () containing a carbon dioxide absorbent material (), and an actuator () for moving the scrubber module () to pass the carbon dioxide absorbent material () alternately between a first flow of air () to be cleaned drawn by the evaporator fan () from within the cargo box (), and a second flow of air () drawn from an environment outside the cargo box for regenerating the carbon dioxide adsorbent material () by removing collected carbon dioxide from the carbon dioxide adsorbent material (). 1. A regenerative scrubber system for removing carbon dioxide from the atmosphere within a cargo box of a refrigerated transport container equipped with a refrigeration unit having an evaporator heat exchanger and an associated fan disposed in air flow communication with the cargo box , the regenerative scrubber system comprising:a scrubber module containing a carbon dioxide adsorbent material; andan actuator for moving the scrubber module to pass the carbon dioxide adsorbent material alternately between a first flow of air drawn by the evaporator fan from within the cargo box and a second flow of air from an environment outside the cargo box.2. The regenerative scrubber system as set forth in wherein the actuator comprises a rotary actuator for rotating the scrubber module about an axis of rotation through the first flow of air and the second flow of air in sequence.3. The regenerative scrubber system as set forth in wherein the scrubber module is mounted in a partition panel separating a condenser module of the refrigeration unit from an evaporator module of the refrigeration unit; and the actuator rotates the scrubber module through the evaporator module and the condenser module.4. The ...

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Номер записи: 40
04-03-2021 дата публикации

HIGH PERFORMANCE CERAMIC COOLING TOWER FILL SYSTEM AND RETAINERS

Номер: US20210063101A1
Автор: Applegate Rodney
Принадлежит:

High performance ceramic (“HPC”) cooling tower fill plates with scalloped top and bottom edges and cross-hatched veins are used in combination with improved retainers in order to produce high performance, cooling tower fill bundles. 1. Fill bundles for use in cooling towers comprising:a fill plate, wherein said fill plate is made of ceramic;wherein said fill plate has a top edge opposite a bottom edge, end a first side edge opposite a second side edge, and said top edge, bottom edge, first side edge, and said second side edge define a first face and an opposing second face;wherein said top edge is scalloped; anda crosshatch of veins on said first face and said second face.2. The apparatus of claim 1 , further comprising:a retainer, wherein said retainer is generally “S” shaped and has a width, and wherein said retainer comprises a first end connected to a first arm wherein said first arm is angled outwardly between said first end and a first peak; a second arm angled inwardly from said first peak to a second peak; a third arm angled inwardly between said second peak and a second end; wherein said first end and said second end extend in opposite directions from each other, and said first peak and said second peak extend in opposite directions from each other;wherein said retainer further comprises a first beta slot that extends between said retainer first end and said first arm; a second alpha slot that extends between said second arm, said second peak, and said third arm;wherein said first beta slot and said second alpha slot are sized in width to be just larger than a width of said plate, and said first beta slot and said second alpha slot are in line with each other creating a first beta slot and second alpha slot combination, such that said plate side edge may be urged into said first beta slot and said second alpha slot;said fill plate urged into said first beta slot and second alpha slot combination; andwherein said fill plate is held generally upright.3. The ...

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Номер записи: 41
12-03-2015 дата публикации

DISTILLATION DEVICE

Номер: US20150068247A1
Автор: Kihara Hitoshi
Принадлежит:

A distillation apparatus of the present invention includes: a distillation column group in which a plurality of distillation columns (D D D), which are respectively equipped with a reboiler (R R R), is connected in the form of a distillation cascade; feed-gas condensers (C′ C′) which liquefy feed gases from respective former distillation columns (D D) and feed said liquefied feed gases to respective latter distillation columns (D D); gas-feeding lines (Q Q) which connect the respective former distillation columns (D D) and the respective feed-gas condensers (C′ C′); and liquid-feeding lines (Q Q) which connect the respective feed-gas condensers (C′ C′) and the respective latter distillation columns (D D). 1. A distillation apparatus comprising:a distillation column group in which a plurality of distillation columns, which are respectively equipped with a reboiler, are connected in the form of a distillation cascade;feed-gas condensers which liquefy feed gases from respective former distillation columns and feed said liquefied feed gases to respective latter distillation columns;gas-feeding lines which connect the respective former distillation columns and the respective feed-gas condensers;liquid-feeding lines which connect the respective feed-gas condensers and the respective latter distillation columns;top-gas condensers provided on the tops of the respective distillation columns;top-gas lines which introduce gases from the respective distillation columns to the respective top-gas condensers;liquid lines which withdraw condensate liquids from the respective top-gas condensers;liquid-reflux lines which introduce the condensate liquids from the respective liquid lines to the respective distillation columns; andliquid-return lines which return parts of the condensate liquids from the respective liquid lines to the respective former distillation columns.2. The distillation apparatus according to claim 1 , wherein cooling fluids fed to the respective feed-gas ...

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Номер записи: 42
28-02-2019 дата публикации

Separation of Components from a Fluid by Solids Production

Номер: US20190063832A1
Автор: Baxter Larry, Chamberlain Skyler, Davis Nathan, Hoeger Christopher, Mansfield Eric, Stitt Kyler
Принадлежит:

A method for separating components from a fluid is disclosed. A cooling element is provided and is disposed in contact with a distal side of one or more thermally-conductive surfaces. One or more resistive heating elements are provided and are disposed in contact with or embedded in a proximal side of the one or more thermally-conductive surfaces. A fluid comprising one or more secondary components is provided. The fluid is passed across the one or more thermally conductive surfaces, the one or more secondary components freezing, crystallizing, desublimating, depositing, condensing, or combinations thereof, out of the fluid. The one or more resistive heating elements engage such that the one or more solid secondary components detach and pass out the solids outlet. The one or more resistive heating elements disengage, restarting production of the one or more solid secondary components. 1. A method for separating components from a fluid comprising:providing a cooling element, one or more resistive heating elements, a fluid inlet, one or more thermally-conductive surfaces, a fluid outlet, and a solids outlet;providing the cooling element disposed in contact with a distal side of the one or more thermally-conductive surfaces, the cooling element cooling the one or more thermally-conductive surfaces;providing the one or more resistive heating elements disposed in contact with or embedded in a proximal side of the one or more thermally-conductive surfaces;providing a fluid comprising one or more secondary components dissolved, entrained, suspended, absorbed, condensed, or combinations thereof, wherein the fluid freezes at a lower temperature than the one or more secondary components, wherein the fluid is passed across the one or more thermally conductive surfaces, at least a portion of the one or more secondary components freezing, crystalizing, desublimating, depositing, condensing, or combinations thereof, out of the fluid as one or more solid secondary components, ...

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Номер записи: 43
10-03-2016 дата публикации

METHOD OF LIQUEFYING A CONTAMINATED HYDROCARBON-CONTAINING GAS STREAM

Номер: US20160069609A1
Автор: VAN AKEN Michiel Gijsbert, WOLTERS-DEN BREEJEN Mariska
Принадлежит:

A method of liquefying a contaminated hydrocarbon-containing gas stream includes cooling the stream in a first heat exchanger and cooling the cooled stream in an expander to obtain a partially liquefied stream. The method further includes separating the partially liquefied stream in a separator to obtain a gaseous stream and a liquid stream. The liquid stream is expanded to obtain a multiphase stream containing at least a vapour phase, a liquid phase and a solid phase. The multiphase stream is separated in a separator to obtain a gaseous stream and a slurry stream. The slurry stream is separated in a solid/liquid separator to obtain a liquid hydrocarbon stream and a concentrated slurry stream. The gaseous stream is passed through the first heat exchanger to obtain a heated gaseous stream. The heated gaseous stream is compressed and combined with the contaminated hydrocarbon-containing gas stream. 1. A method of liquefying a contaminated hydrocarbon-containing gas stream , the method comprising at least the steps of:(a) providing a contaminated hydrocarbon-containing gas stream;(b) cooling the contaminated hydrocarbon-containing gas stream in a first heat exchanger thereby obtaining a cooled contaminated hydrocarbon-containing stream;(c) cooling the cooled contaminated hydrocarbon-containing stream in an expander thereby obtaining a partially liquefied stream;(d) separating the partially liquefied stream in a separator thereby obtaining a gaseous stream and a liquid stream;(e) expanding the liquid steam obtained in step thereby obtaining a multiphase stream, the multiphase stream containing at least a vapour phase, a liquid phase and a solid phase;(f) separating the multiphase stream in a separator thereby obtaining a gaseous stream and a slurry stream;(g) separating the slurry stream in a solid/liquid separator thereby obtaining a liquid hydrocarbon stream and a concentrated slurry stream;(h) passing the gaseous stream obtained in step (d) through the first heat ...

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Номер записи: 44
10-03-2016 дата публикации

Onsite Ultra High Purity Chemicals or Gas Purification

Номер: US20160069612A1
Автор: Booth Thomas M., Conway Timothy Edward, Gershtein Vladimir Yliy, Hopkins Jeffrey Alan, Lindenmuth Brian M.
Принадлежит: AIR PRODUCTS AND CHEMICALS, INC.

An onsite purification plant/system to delivery high and ultra high purity product, such as, process chemicals, industrial and specialty gases to manufacturing processes within the onsite plant turndown ratio from 0% to 100% while preserving the predetermined purity of the supplied substances within a predefined specification range is provided. Preserving liquid/vapor ratio in at least one of the purification means/units ensuring that product purity range stays unchanged is achieved by redirecting the product back into the onsite purification plant/system. 1. An onsite purification system comprising:1) a feed stream comprising of a chemical or gas being purified;2) at least two purification units for receiving and purifying the feed stream;3) at least one purified stream out from the at least two purification units;4) an automatic stream control system for receiving the at least one purified stream; wherein the at least one automatic stream control system comprising:an output product junction and a feedback junction;5) at least one product stream out from the output product junction; and6) at least one feedback stream out from the feedback junction and back into the at least two purification units.2. The onsite purification system of claim 1 , wherein the feed stream is an industrial grade purity product having a purity of <98%; and the at least one product stream is an industrial grade purity product having a purity of >99.5%.3. The onsite purification system of claim 1 , wherein the chemical or gas being purified is selected from the group consisting of NH claim 1 , HCl claim 1 , Cl claim 1 , NF claim 1 , O claim 1 , N claim 1 , CO claim 1 , and combinations thereof.4. The onsite purification system of claim 1 , wherein the chemical or gas being purified is NH.5. The onsite purification system of claim 1 , wherein each of the at least two purification units is independently selected from the group consisting of filter claim 1 , absorption bed claim 1 , ...

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Номер записи: 45
05-06-2014 дата публикации

PROCESS AND APPARATUS FOR REMOVING HEAT AND WATER FROM FLUE GAS

Номер: US20140150493A1
Автор: Belchers Christopher H., Furlong Steve, McGregor Ian R.
Принадлежит: Drystill Holdings Inc.

Disclosed is a process for use with flue gas having a moisture content M. The flue gas is introduced to strong brine adapted to exothermically absorb moisture. Simultaneously, heat is withdrawn. This produces heat, water-enriched brine and a gas having a moisture concentration less than M. The strong brine can be recovered by distillation from enriched brine to produce water. The brine temperature throughout absorption can remain within 2° F. of a temperature T in the range 220° F.-300° F. The heat withdrawal can be associated with gas-liquid phase change of a working fluid. The terminus of the heat flow can be associated with gas-liquid phase change of the working fluid. The working fluid can: as liquid, flow only by gravity, convection or wicking; and, as gas, flow only by diffusion or convection. The heat flow can drive a boiler producing steam. M can be greater than 15 wt. % water. 1. A process for use with a flue gas having a moisture content M , the process comprising the steps of: introducing said flue gas to a flow of strong brine adapted to exothermically absorb moisture from the flue gas to produce heat; and', 'withdrawing heat,, 'i. simultaneously'}thereby to produce a flow of heat, a flow of water-enriched brine and a gas having a moisture concentration less than M; andii. recovering the strong brine from the water-enriched brine to produce a flow of water,characterized in thata. the temperature of the brine throughout the absorption step remains within 2° F. of a temperature T that lies in the range 220° F.-300° F.; and/orb. the withdrawal of heat is associated with the phase change of a working fluid from the liquid state to a gaseous state; the terminus of the heat flow is associated with the phase change of the working fluid from the gaseous state to the liquid state; in the liquid state, the working fluid flows only by one or more of gravity, convection and wicking; and in the gaseous state, the working fluid flows only by one or more of diffusion ...

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Номер записи: 46
05-03-2020 дата публикации

Device and Method for Multistage Continuous Preparation of Deuterium Depleted Water

Номер: US20200070062A1
Автор: Liao Kylin
Принадлежит: NNB Nutrition USA LLC

The present application discloses a device for multistage continuous preparation of deuterium depleted water, which includes a feeding pump, a plurality of stages of separation systems connected in series, and a receiver, all of which are connected in sequence. Each stage of separation system comprises a distillation column, a vapor-liquid separator, a low-pressure steam compressor, a stream delivery pump, a three-way valve, and a stream output pipe. The present application further discloses a method for preparing deuterium depleted water, wherein natural water is fed into the device of the present disclosure, and the liquid phase stream continuously flows backwards stage by stage under the combined action of the low-pressure steam compressors and the stream delivery pumps. In a single-stage system, the deuterium is deprived depending on the difference in vapor pressure between HO and HO (and/or HHO), and finally, the deuterium depleted water is produced. 1. A device for multistage continuous preparation of deuterium depleted water , comprising a feeding pump , a plurality of stages of separation systems connected in series , and a receiver , wherein each stage of separation systems comprises a distillation column , a vapor-liquid separator , a low-pressure steam compressor , a stream delivery pump , a three-way valve , and a stream output pipe; wherein:the distillation column comprises a plurality of column sections arranged vertically from top to bottom, and a liquid phase vaporizer located at the bottom of the column; the distillation column is provided with a first liquid phase return inlet, a second liquid phase return inlet and a steam outlet at the top of the column, a liquid phase inlet at the middle of the column, and a waste liquid outlet at the bottom of the column;the liquid phase vaporizer is provided with a steam inlet in an upper part thereof and a stream outlet in a lower part thereof, the steam inlet and the stream outlet are connected through a ...

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Номер записи: 47
18-03-2021 дата публикации

Device and Method for Multistage Continuous Preparation of Deuterium Depleted Water

Номер: US20210077918A1
Автор: Kylin LIAO
Принадлежит: NNB Nutrition USA LLC

The present application discloses a device for multistage continuous preparation of deuterium depleted water, which includes a feeding pump, a plurality of stages of separation systems connected in series, and a receiver, all of which are connected in sequence. Each stage of separation system comprises a distillation column, a vapor-liquid separator, a low-pressure steam compressor, a stream delivery pump, a three-way valve, and a stream output pipe. The present application further discloses a method for preparing deuterium depleted water, wherein natural water is fed into the device of the present disclosure, and the liquid phase stream continuously flows backwards stage by stage under the combined action of the low-pressure steam compressors and the stream delivery pumps. In a single-stage system, the deuterium is deprived depending on the difference in vapor pressure between 1H2O and 2H2O (and/or 1H2HO), and finally, the deuterium depleted water is produced.

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Номер записи: 48
12-06-2014 дата публикации

Process and apparatus for the separation of the components of a liquid mixture

Номер: US20140158520A1
Автор: Gabor Somlyai
Принадлежит: HYD RAKKUTATO ES GYOGYSZERFEJLESZTO, Hyd Rakkutato Es Gyogyszerfejleszto Kft

Process and apparatus for the separation of the components having different boiling points of a liquid mixture, characterized in that forming bubbles by a carrier gas in the liquid mixture where the one or more volatile component is getting enriched in the bubbles, then after said bubbles leave the liquid phase the released vapor content of them is collected and condensed and the obtained liquid being enriched in the more volatile component(s) is separated from the carrier gas.

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Номер записи: 49
12-06-2014 дата публикации

SYSTEM AND METHOD FOR HYDRATE-BASED DESALINATION

Номер: US20140158635A1
Автор: Katyal Amit
Принадлежит:

The present invention relates to systems and methods for desalinating and/or treating polluted water. More particularly, the present invention relates to systems and methods for desalinating and/or treating polluted water using gas hydrates. In particular, the system comprises a desalination tank configured to form gas hydrates using a suitable hydrate former taken from a storage tank that is operatively connected to the desalination tank. With all operations, including formation of gas hydrates, discharging of highly saline water, washing the gas hydrates and dissociation of gas hydrates being conducted in a single pressurized tank such as the desalination tank, the present apparatus provides a simple and efficient solution at a low manufacturing and operating cost. 125-. (canceled)26. A method of desalinating or treating saline or polluted water up to maximum possible levels of salinity up to eutectic saline composition of water using a hydrate former under controlled temperature and pressure conditions , comprising the steps of:pumping feed water into a desalination tank from feed water tank;forming gas hydrates in said desalination tank of said feed water using said hydrate former;discharging concentrated saline water from the bottom outlet of said desalination tank to a saline water tank;washing said gas hydrates to remove surface salt; anddissociating said gas hydrates to give desalinated water and said hydrate former;wherein all the above steps are carried out in said desalination tank, and wherein said method is carried out in a batch mode, and wherein said hydrate former is stored in a storage tank and transferred to said desalination tank during gas hydrate formation.27. The method of claim 26 , wherein said storage tank receives said hydrate former back from the desalination tank during hydrate dissociation because of pressure differential between said tanks and wherein said hydrate former is selected from the group comprising of C-Chydrocarbons claim 26 ...

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Номер записи: 50
31-03-2022 дата публикации

APPARATUS AND METHOD FOR SEPERATING TRITIATED AND HEAVY WATER FROM LIGHT WATER

Номер: US20220097003A1
Автор: Muchnik Boris
Принадлежит:

An apparatus and method for separating tritiated water (HTO) and/or heavy water (D20) from light water (H2O). A disposable, dense, plastic filter mesh is disposed within a cylinder which is configured to rotate. Chilled heavy water is pumped into the rotating cylinder. Tritiated heavy water, which is preferably frozen, is pressed to the interior wall of the cylinder which is lined with the filter mesh. The heavy water becomes affixed to the mesh, and light water is drained from the cylinder to be reused as coolant. The mesh filter, when needed, is safely disposed in accordance with industry guidelines. The mesh filter is then replaced with a new iteration of the filter. 1. An apparatus for separating tritiated water from light water , comprising:a cylinder;a drain, in communication with said cylinder;an intake, in communication with said cylinder;a pump, in communication with said intake; anda filter mesh, in communication with said cylinder.2. The apparatus of claim 1 , wherein said cylinder is configured to rotate about a primary longitudinal axis.3. The apparatus of claim 1 , wherein said drain is configured to remove light water after cleansing.4. The apparatus of claim 1 , wherein said intake is configured to introduce tritiated water into said cylinder from said pump.5. The apparatus of claim 1 , wherein said filter mesh is disposed within said cylinder.6. A method for separating tritiated water from light water claim 1 , comprising:pumping heavy water through a chiller;chilling the heavy water to 2 to 4 degrees Celsius;allowing the chilled heavy water to sink;pumping the chilled heavy water into a cylinder; andattaching the chilled heavy water to plastic mesh inside the cylinder. This is a nonprovisional utility patent application claiming priority to provisional patent application No. 63/083,429 filed on Sep. 25, 2020, and priority is claimed thereto.The present invention relates to the field of nuclear power generation waste, and more specifically relates ...

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Номер записи: 51
24-03-2016 дата публикации

PURIFICATION OF ARGON THROUGH LIQUID PHASE CRYOGENIC ADSORPTION

Номер: US20160084571A1
Автор: Barrett Philip A., Du Hai, Kechagia Persefoni E., Pontonio Steven J., Stephenson Neil A.
Принадлежит:

The invention relates to a process for removing oxygen from liquid argon using a TSA (temperature swing adsorption) cyclical process that includes cooling an adsorbent bed to sustain argon in a liquid phase; supplying the adsorbent bed with a liquid argon feed that is contaminated with oxygen and purifying the liquid argon thereby producing an argon product with less oxygen contaminant than is in the initial liquid argon feed; draining the purified residual liquid argon product and sending purified argon out of the adsorbent bed. Regeneration of specially prepared adsorbent allows the adsorbent bed to warm up to temperatures that preclude the use of requiring either vacuum or evacuation of adsorbent from the bed. 1. An adsorption process for purifying a feed stream containing primarily liquid argon and oxygen , comprising the following cycle of process steps:a) supplying from the inlet of an adsorbent bed said liquid argon feed that contains oxygen, adsorbing at least part of the oxygen on the adsorbent thereby producing a purified liquid argon product leaving said adsorbent bed from the outlet with less oxygen than present in said liquid argon feed at the inlet;b) draining from said adsorbent bed purified residual liquid argon by introducing a displacement purge gas;c) allowing said adsorbent bed containing said adsorbent to warm to a temperature, desorbing at least part of the adsorbed oxygen and removing said adsorbed oxygen from the adsorbent bed such that the liquid argon feed may be supplied for purposes of repeating the cycle;d) cooling said adsorbent bed having an inlet and an outlet and containing an adsorbent such that said adsorbent bed is cooled to a temperature below the boiling point of argon;e) wherein said process steps (a)-(d) are repeated in a cyclical manner.2. The process of claim 1 , wherein the liquid argon feed for step (a) contains more than 10 parts per million of oxygen and less or equal to 10 claim 1 ,000 parts per million of oxygen and ...

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Номер записи: 52
02-04-2015 дата публикации

LIQUID DESALINATION DEVICE

Номер: US20150089962A1
Автор: WANG Chin-Wen
Принадлежит:

A liquid desalination device includes an ice maker, a rotary tank, an impurities collection tank and a desalination collection tank. The ice maker has a freezer module, a liquid inlet and an ice outlet. The liquid inlet and the liquid outlet correspond to the freezer module in position. The rotary tank has a tank body with a plurality of through holes, an ice inlet and an egress. The ice inlet and the egress are located at two end of the tank body. The ice inlet corresponds to the ice outlet in position. The impurities collection tank is disposed around the tank body, and corresponding to the through holes in position. The desalination collection tank corresponds to the ice outlet in position. 1. A liquid desalination device comprising:an ice maker, having a freezer module, a liquid inlet and an ice outlet, wherein the liquid inlet and the liquid outlet correspond to the freezer module in position;a rotary tank, having a tank body with a plurality of through holes, an ice inlet and an egress, wherein the ice inlet and the egress are located at two end of the tank body, and the ice inlet corresponds to the ice outlet in position;an impurities collection tank, disposed around the tank body, and corresponding to the through holes in position; anda desalination collection tank, corresponding to the ice outlet in position.2. The liquid desalination device of claim 1 , wherein the freezer module further comprises at least one thermoelectric cooling chip claim 1 , an ice grid frame claim 1 , at least one vapor chamber claim 1 , a cooling pipe and a drip tube claim 1 , the thermoelectric cooling chip has a heat absorber side and a heat emitter side claim 1 , the ice grid frame has a plurality of grids corresponding to the heat absorber side claim 1 , the vapor chamber and the cooling pipe abut against the heat emitter side claim 1 , and the drip tube connects the liquid inlet and located over the ice grid frame.3. The liquid desalination device of claim 2 , wherein the ...

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Номер записи: 53
31-03-2016 дата публикации

APPARATUS AND METHOD FOR PURIFYING GASES AND METHOD OF REGENERATING THE SAME

Номер: US20160091245A1
Автор: Diederichs Jost, MILLAN CONRADO RILLO, Simmonds Michael Bancroft
Принадлежит:

A method and device for purifying a process gas mixture, such as a cryogen gas, in which impurity components of the mixture are removed by de-sublimation via cryo-condensation. The gas mixture is cooled to a temperature well below the condensation temperature of the impurities, by direct exchange of the gas mixture with a cooling source disposed in a first region of the device. The de-sublimated or frozen impurities collect about the cooling region surfaces, and ultimately transferred to a portion of the device defining an impurities storage region. The output-purified gas is transferred from the impurities storage region, is optionally passed through a first micrometer sized filter, through a counter-flow heat exchanger, and ultimately up to an output port at room temperature. A method of purging the collected impurities and regenerating the device is also disclosed. 1. A gas purifier for removing gaseous impurities from a cryogen gas comprising:a housing having an inlet for receiving a cryogen gas to be purified and a purified gas outlet, said housing defining a hollow interior which defines a first region in an uppermost interior portion thereof and a second region in a lower interior portion thereof;a coldhead disposed in the first region and operative to contact a flow of the cryogen gas sought to be purified received through the inlet, the coldhead being operative to cool the cryogen gas to a temperature sufficient to de-sublimate at least one gaseous impurity present in the cryogen gas; anda collection mechanism coupled to the purified gas outlet, the collection mechanism being disposed within the second region and selectively positioned therein such that the cryogen gas passes therethrough and through the outlet while retaining the at least de-sublimated impurity within the interior of said housing.2. The gas purifier of wherein the second region of the interior of the housing is configured to retain the at least one de-sublimated impurity formed in the ...

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Номер записи: 54
14-04-2016 дата публикации

SYSTEM AND METHOD FOR SUBSEA COOLING A WELLHEAD GAS TO PRODUCE A SINGLE PHASE DEW-POINTED GAS

Номер: US20160102262A1
Автор: Moore Richard
Принадлежит: SUBCOOL TECHNOLOGIES PTY LTD.

A system and method for subsea cooling a wellhead gas containing components separable by dewpoint condensation to produce a single phase dew-pointed gas for pipeline transport is disclosed. The system includes a first cooling apparatus configured in use to cool the wellhead gas in direct or indirect heat exchange relation with ambient seawater to a first temperature marginally above ambient seawater temperature to condense liquids comprising one or more hydrocarbons other than methane and at least partially condense water in the wellhead gas. The system also includes a first separator to separate the condensed liquids and water from the cooled gas and a means to add a hydrate inhibitor into the separated cooled gas. The system further includes a second cooling apparatus configured to cool the separated cooled gas to a second temperature below the first temperature, wherein the second temperature is below the ambient seawater temperature to condense the remaining water and produce a single phase dew-pointed gas; and a second separator to separate the condensed remaining water from the single phase dew-pointed gas. 1. A system for subsea cooling a wellhead gas containing components separable by dewpoint condensation to produce a single phase dew-pointed gas for pipeline transport , said system comprising:a first cooling apparatus configured in use to cool the wellhead gas in direct or indirect heat exchange relation with ambient seawater to a first temperature marginally above ambient seawater temperature to condense liquids comprising one or more hydrocarbons other than methane and at least partially condense water in the wellhead gas;a first separator to separate the condensed liquids and water from the cooled gas;a means to add a hydrate inhibitor into the separated cooled gas;a second cooling apparatus configured to further cool the separated cooled gas to a second temperature below the first temperature, wherein the second temperature is below the ambient ...

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Номер записи: 55
30-04-2015 дата публикации

Purification of Carbon Dioxide

Номер: US20150114033A1
Автор: Guvelioglu Galip Hakan, Higginbotham Paul, Palamara John Eugene, White Vincent
Принадлежит:

In a process for separating at least one “heavy” impurity such as hydrogen sulfide from crude carbon dioxide comprising significant quantities of at least one “light” impurity such as non-condensable gases, involving at least one heat pump cycle using carbon dioxide-containing fluid from the process as the working fluid, the “light” impurity is removed from the crude carbon dioxide and carbon dioxide is subsequently recovered from the removed “light” impurity, thereby improving overall carbon dioxide recovery and efficiency in terms of energy consumption. 2. The process of claim 1 , wherein said recovered carbon dioxide is fed to said second column system for mass transfer separation.3. The process of claim 1 , wherein said cooled crude carbon dioxide fluid is expanded prior to being fed to said first column system.4. The process of claim 3 , wherein said cooled crude carbon dioxide fluid is below the critical pressure of carbon dioxide prior to expansion.5. The process of claim 3 , wherein said cooled crude carbon dioxide fluid is above the critical pressure of carbon dioxide prior to expansion.6. The process of claim 1 , wherein said overhead vapor from said first column system is cooled prior to carbon dioxide recovery.7. The process of claim 6 , wherein said overhead vapor is cooled by indirect heat exchange to condense carbon dioxide in the vapor which is recovered by phase separation.8. The process of claim 1 , wherein carbon dioxide and said at least one “heavy” impurity are washed out of said overhead vapor from said first column system in a wash column using as washing liquid carbon dioxide-enriched liquid from said second column system.9. The process of claim 8 , wherein said overhead vapor from said first column system is cooled but not condensed prior to being fed as cooled vapor to said wash column.10. The process of claim 8 , wherein said overhead vapor from said first column system is cooled by direct heat exchange with said washing liquid in said ...

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Номер записи: 56
30-04-2015 дата публикации

Purification of Carbon Dioxide

Номер: US20150114034A1
Автор: Guvelioglu Galip Hakan, Higginbotham Paul, Palamara John Eugene, White Vincent
Принадлежит:

In a process for separating “heavy” impurities such as hydrogen sulfide from crude carbon dioxide comprising significant quantities of “light” impurities such as non-condensable gases, involving at least one heat pump cycle using as working fluid a fluid from the “heavy” impurity separation, the “light” impurities are removed from carbon dioxide-enriched gas generated in the “heavy” impurity separation. The carbon dioxide-enriched gas, or a compressed carbon dioxide-enriched gas produced therefrom, is at least partially condensed by indirect heat exchange against intermediate liquid also generated in the “heavy” impurity separation. Total and specific energy consumption is reduced compared to conventional processes in which “light” impurities are removed from carbon dioxide product gas. 2. The process of claim 1 , wherein said at least partially condensed carbon dioxide-enriched gas is expanded prior to said separation to produce said “light” impurity-enriched gas and said carbon dioxide-enriched liquid.3. The process of claim 1 , wherein said carbon dioxide-enriched overhead vapor claim 1 , or said compressed carbon dioxide-enriched gas produced therefrom claim 1 , is partially condensed by said indirect heat exchange to produce partially condensed carbon dioxide-enriched gas.4. The process of claim 1 , wherein said carbon dioxide-enriched liquid is separated from said “light” impurity-enriched gas by phase separation.5. The process of claim 1 , wherein said carbon dioxide-enriched liquid is separated from said “light” impurity-enriched gas by mass transfer separation in a second column system.6. The process of claim 1 , wherein at least part of the vaporization duty required for re-boiling said first column system is provided by at least one stream selected from the group consisting of at least one recycle stream in said heat pump cycle(s); and said crude carbon dioxide fluid.7. The process of claim 1 , wherein said “heavy” impurity-enriched liquid(s) providing ...

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Номер записи: 57
30-04-2015 дата публикации

AIR SEPARATION METHOD AND APPARATUS

Номер: US20150114037A1
Автор: Prosser Neil M.
Принадлежит:

A method and apparatus for separating air in which an oxygen-rich liquid stream is pumped and then heated within a heat exchanger to produce an oxygen product through indirect heat exchange with first and second boosted pressure air streams. The first boosted pressure air stream is cold compressed at an intermediate temperature of the heat exchanger, reintroduced into the heat exchanger at a warmer temperature and then fully cooled and liquefied. The second boosted pressure air stream, after having been partially cooled, is expanded to produce an exhaust stream that is in turn introduced into a lower pressure column producing the oxygen-rich liquid. The second boosted pressure air stream is partially cooled to a temperature no greater than the intermediate temperature at which the cold compression occurs so that both the first and second boosted pressure air streams are able to take part in the heating of the oxygen-rich stream. 1. A method of separating air comprising:separating compressed and purified air in a cryogenic rectification process such that an oxygen-rich liquid column bottoms is produced in a lower pressure column linked in a heat transfer relationship to a higher pressure column by a condenser reboiler, an oxygen-rich liquid stream is pumped to produce a pumped oxygen stream and at least part of the pumped oxygen stream is heated in a main heat exchange system to produce an oxygen product stream;heating the at least part of the pumped oxygen stream within the main heat exchange system by further compressing part of the compressed and purified air stream to produce a first boosted pressure air stream and a second boosted pressure air stream, respectively, partially cooling the first boosted pressure air stream and the second boosted pressure air stream within the main heat exchange system, cold compressing the first boosted pressure air stream, after having been partially cooled, at an intermediate temperature to produce a cold compressed air stream, ...

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Номер записи: 58
10-07-2014 дата публикации

METHOD FOR PURIFICATION OF CARBON DIOXIDE USING LIQUID CARBON DIOXIDE

Номер: US20140190206A1
Автор: Find Rasmus, Poulsen Jan Flensted
Принадлежит: UNION ENGINEERING A/S

The present invention relates to a method for removing at least one contaminant from a gaseous stream substantially comprising carbon dioxide. More specifically said method includes the step of subjecting the gaseous stream to an absorption step in which the absorbent is liquid carbon dioxide. 1. A method for removing a plurality of contaminants from a gaseous feed stream substantially comprising carbon dioxide , said method comprising:subjecting the gaseous feed stream to an absorption step in an absorption column having a top, bottom and an intermediate section, wherein an absorbent is liquid carbon dioxide and wherein the plurality of contaminants are selected from the group consisting of non-polar organic compounds and compounds having a boiling point higher than the boiling point of carbon dioxide; andobtaining a carbon dioxide enriched gaseous stream and a contaminant rich liquid stream containing at least 95% (w/w) of the plurality of contaminants from the gaseous feed stream,wherein the temperature of the gaseous feed stream entering the column is higher than a dew point temperature of carbon dioxide at the prevailing absorption condition and the ratio of absorbent to gaseous feed stream is at least 1/11.2. The method according to claim 1 , wherein the plurality of contaminants are selected from the group consisting of NOx's claim 1 , oxygenates claim 1 , esters claim 1 , aromatic compounds claim 1 , alcohols and combinations thereof.3. The method according to claim 1 , wherein the ratio of absorbent to gaseous feed stream is in the range 1/11 to 1/2 claim 1 , and wherein the plurality of contaminants are selected from the group consisting of NOx's claim 1 , oxygenates claim 1 , esters aromatic compounds claim 1 , alcohols and combinations thereof.4. The method according to claim 1 , wherein the absorbent is an externally supplied source of pure liquid carbon dioxide.5. The method according to claim 1 , wherein the absorption step further comprises an ...

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Номер записи: 59
28-04-2016 дата публикации

Method and System of Controlling A Temperature Within A Melt Tray Assembly Of A Distillation Tower

Номер: US20160116210A1
Автор: Denton Robert D., Nagavarapu Ananda K., Northrop P. Scott
Принадлежит:

A method and system of controlling a temperature within a melt tray assembly of a distillation tower. The method may include determining a melt tray fluid composition of a melt tray fluid, determining a melt tray fluid temperature of the melt tray fluid, determining if the melt tray fluid temperature is within an expected melt tray fluid temperature range for the melt tray fluid composition, decreasing the melt tray fluid temperature if the melt tray fluid temperature is greater than an expected melt tray fluid temperature range upper limit, increasing the melt tray fluid temperature if the melt tray fluid temperature is less than an expected melt tray fluid temperature range lower limit, and maintaining the melt tray fluid temperature if the melt tray fluid temperature is within the expected melt tray fluid temperature range. 1. A method of controlling a temperature within a melt tray assembly of a distillation tower , comprising:maintaining a melt tray assembly, within a controlled freeze zone section of a distillation tower that forms a solid and a vapor from a stream that enters the distillation tower, that comprises a melt tray fluid and a melt tray heat exchanging device within the melt tray fluid;providing a phase changing fluid, to the melt tray heat exchanging device, that is configured to be a dual-phase heat transfer fluid;determining a melt tray fluid composition of the melt tray fluid;determining a melt tray fluid pressure of the melt tray fluid;determining a melt tray fluid temperature of the melt tray fluid;determining if the melt tray fluid temperature is within an expected melt tray fluid temperature range for the melt tray fluid composition and pressure, wherein the expected temperature has an expected melt tray fluid temperature range upper limit and an expected melt tray fluid temperature range lower limit;decreasing the melt tray fluid temperature if the melt tray fluid temperature is greater than the expected melt tray fluid temperature range ...

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Номер записи: 60
27-04-2017 дата публикации

AIR SEPARATION SYSTEM AND METHOD

Номер: US20170115053A1
Автор: Dowd Sophia J., Rauch Jeremiah J., Sarigiannis Catherine B., Warta Andrew M., ZHANG Wei
Принадлежит:

A system and method for separating air in an air separation plant is provided. The disclosed systems and methods divert a portion of the compressed, purified air stream to a bypass system configured to selectively produce a higher pressure compressed output stream or a lower pressure compressed output stream. The higher pressure and/or lower pressure compressed output streams are cooled in a main heat exchanger by indirect heat transfer with a plurality of product streams from the air separation plant and then rectified in the distillation column system. A second portion of the compressed, purified air stream is partially cooled in the main heat exchanger and expanding in a turbo-expander to produce power and an exhaust stream which is directed to the distillation column system of the air separation plant where it imparts additional refrigeration generated by the expansion of the compressed air stream in the turbo-expander. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. An air separation system comprising:an air intake system comprising a main air compressor, a purification unit connected to the main air compressor, the air intake system configured to produce a stream of compressed, purified air;a bypass system in flow communication with the air intake system and configured to receive a first portion of the compressed, purified air stream and condition the first portion of the compressed, purified air stream into a compressed output stream; the bypass system comprising a booster compressor circuit having one or more booster compressors, a bypass circuit, and a plurality of control valves to control the flows through the booster compressor circuit and the bypass circuit;a main heat exchanger in flow communication with the air intake system and the bypass system, the main heat exchanger configured to receive the conditioned compressed output stream from ...

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Номер записи: 61
13-05-2021 дата публикации

ZERO LIQUID DISCHARGE EUTECTIC FREEZE DESALINATION WITH INTERMEDIATE COLD LIQUID

Номер: US20210139346A1
Автор: Cai Jie, Parthasarathy Ramkumar N., Shabgard Hamidreza
Принадлежит: The Board of Regents of the University of Oklahoma

A method for desalinating a brine includes the use of a cooled intermediate-cold-liquid (ICL), which combines with the brine in a crystallization or freezing tank to produce a slurry of ice, brine, and ICL. The method includes steps for separating the ICL, ice and brine, and returning the separated ICL to the source of cooled ICL tank. The method concludes with the steps of passing the separated brine to the crystallization tank, and melting the separated ice to form desalinated water. The method is significant in that it produces desalinated liquid water and solid salts. The combination of superior heat transfer with high quality purified water and competitive desalination economy makes the disclosed freeze desalination technology an attractive solution for desalination of highly concentrated brines produced in a variety of industries, including but not limited to the oil and gas industry and reject brine management. 1. A method for desalinating a feed brine using a single-stage freezing process , wherein the feed brine includes a salt dissolved in water , the method comprising the steps of:providing a source of cooled intermediate-cold-liquid (ICL);introducing the feed brine and the cooled ICL to a crystallization tank;contacting the feed brine with the ICL for a time sufficient to form a slurry of ice, brine, and ICL;separating the ICL, ice and brine;returning the separated ICL to the source of cooled ICL tank;passing the separated brine to the crystallization tank; andmelting the separated ice to form desalinated water.2. The method of claim 1 , wherein the step of separating the ICL claim 1 , ice and brine comprises using a primary separator to separate the ICL claim 1 , ice and brine.3. The method of claim 2 , wherein the ice and brine are separated from the ICL and brine in a primary separator and wherein the ice is separated from the brine in an ice-brine separator.4. The method of claim 3 , wherein the ICL is separated from brine in an ICL-brine separator.5 ...

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Номер записи: 62
05-05-2016 дата публикации

SEPARATION AND CONCENTRATION OF ISOTOPOLOGUES

Номер: US20160121268A1
Автор: Avery Randall N., Booth Charlie, Moser Keith
Принадлежит:

Disclosed herein are methods and systems for removing tritium oxide from a mixture comprising water. The method captures the tritium oxide in a much smaller volume suitable for economical disposal. The decontaminated water may be then be discharged. 1. A method for separating a mixture of isotopologues , comprising the steps of: i. a concentration of at least one dissolved salt;', 'ii. a first isotopologue having a first freezing temperature in the presence of the concentration of at least one dissolved salt, and', 'iii. a second isotopologue having a second freezing temperature in the presence of the concentration of at least one dissolved salt, wherein the freezing temperature of the first isotopologue is below the freezing temperature of the second isotopologue;, '(a) providing a liquid stream comprising a mixture of(b) introducing the liquid stream into a filter capable of selectively capturing the second isotopologue such that at least a portion of the second isotopologue remains in the filter and a liquid filtrate comprising the first isotopologue exits the filter media.2. The method of claim 1 , wherein the filter is capable of selectively capturing by freezing at least a portion of the second isotopologue.3. The method of or claim 1 , wherein the filter is capable of selective capturing by nucleating at least a portion of the second isotopologue.4. The method of any of - claim 1 , wherein the filter of step b) comprises filter media maintained at a temperature between the freezing temperature of the first isotopologue and the freezing temperature of the second isotopologue.5. The method of any of - claim 1 , wherein the filter media comprises the first isotopologue.6. The method of any of - claim 1 , wherein the first isotopologue is water claim 1 , and wherein the second isotopologue is tritium oxide.7. The method of any of - claim 1 , wherein the filter media comprises a third isotopologue of the first and second isotopologues.8. The method of any of - ...

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Номер записи: 63
16-04-2020 дата публикации

HIGH LENGTH ISOTOPES SEPARATION COLUMN AND METHOD FOR ASSEMBLY

Номер: US20200114312A1
Автор: GALBIATI Cristiano
Принадлежит:

The present invention relates to the field of distillation of isotopes obtained by distillation columns. An object of the present invention is to describe an innovative distillation column which provides significant improvements to the prior art. In particular, the distillation column will be a modular innovatively conceived column having any needed height. 110043555. A distillation column () for isotopic separation comprising at least a bottom reboiler () , a top condenser () and a central column section , said central column section comprising at least one or more central modular element(s) ( . . . ) , said modular element(s) being connected to the wall of a supporting structure by means of connecting means , characterized in that one or a plurality of modules () comprise at least one or more bellows for compensating the thermal expansion or contraction of said module(s) due to the large swing between room and process operating temperature , by contraction or expansion of the bellows along the total height of the column , such as to maintain the total height of the internal column between its top and the bottom support unchanged , thus preserving the integrity of the columns during commissioning and operation , the modular column having any needed height.210055222223232222. The distillation column () for isotopic separation according to claim 1 , wherein said module(s) ( . . . ) comprise at least one insulation vessel element ( . . . ) and at least one internal modular column element ( . . . ) enclosed within said insulation vessel element ( . . . ) claim 1 , said insulation vessel being modular and said column apt to support very large swings between room and process operating temperature.3100. The distillation column () for isotopic separation according to the preceding claims claim 1 , wherein said distillation column can operate at cryogenic temperature being a cryogenic modular distillation column.410022262226. The distillation column () for isotopic ...

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Номер записи: 64
25-08-2022 дата публикации

SEMICONDUCTOR MANUFACTURING APPARATUS AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

Номер: US20220270885A1
Автор: Aiso Fumiki, FUJII Motoki, Kubota Hiroshi
Принадлежит: Kioxia Corporation

In one embodiment, a semiconductor manufacturing apparatus includes a substrate processor configured to process a substrate with a gas of a first substance and a gas of a second substance, and discharge a first gas including the first substance and/or the second substance. The apparatus further includes a disposer configured to discard the first gas discharged from the substrate processor. The apparatus further includes a recoverer configured to generate a second gas including the second substance by using the first substance in the first gas discharged from the substrate processor, and supply the second gas to the substrate processor. 1. A semiconductor manufacturing apparatus comprising:a substrate processor configured to process a substrate with a gas of a first substance and a gas of a second substance, and discharge a first gas including the first substance and/or the second substance;a disposer configured to discard the first gas discharged from the substrate processor; anda recoverer configured to generate a second gas including the second substance by using the first substance in the first gas discharged from the substrate processor, and supply the second gas to the substrate processor.2. The apparatus of claim 1 , wherein the first substance is Dor Hwhere H represents hydrogen and D represents deuterium claim 1 , and the second substance is DO or HO where O represents oxygen.3. The apparatus of claim 2 , wherein the recoverer causes Dor Has the first substance to react with Oto generates DO or HO as the second substance.4. The apparatus of claim 1 , wherein the recoverer includes:a generator configured to generate the second substance by using the first substance in the first gas, anda container configured to contain a liquid including the second substance generated by the generator.5. The apparatus of claim 4 , wherein the recoverer further includes a condenser configured to change the second substance generated by the generator from a gas into a liquid ...

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Номер записи: 65
07-08-2014 дата публикации

METHOD AND DEVICE FOR DEHYDRATING A CO2 CONTAINING GAS

Номер: US20140216104A1
Автор: Dmitriev Leonard Makarovich, Imaev Salavat Zainetdinovich
Принадлежит: VICTORIA CAPITAL INVESTMENTS GROUP LTD.

Proposed is a method for dehydrating a COcontaining gas () by cooling the gas () and separating the condensed water from the gas (), wherein the gas is contacted with liquid COto condense water contained in the gas () and the condensate is separated from the remaining gas. Further, a device for dehydrating a COcontaining gas is proposed, comprising a gas feeding system for feeding the gas which has to be dehydrated, wherein the device comprises a COfeeding system for feeding liquid CO, a contacting device (C) for contacting the gas and the liquid CO for cooling the gas () to condense the water contained in the gas (), and which comprises a first separator () for separating the condensate from the remaining gas. 1. A method for dehydrating a COcontaining gas by{'b': 1', '1, 'cooling the gas () and separating the condensed water from the gas (),'}{'b': 1', '1', '1, 'sub': '2', 'wherein the gas () is contacted with liquid COfor cooling the gas () to condense water contained in the gas () and the condensate is separated from the remaining gas, and'}{'sub': 2', '2, 'b': '10', 'wherein the remaining gas which comprises gaseous COis expanded to condense water contained in the gas, and the thus obtained liquid phase comprising liquid COwater () and, optionally, hydrates is separated from the dehydrated gas.'}2. (canceled)310. The method according to claim 1 , characterized in that the obtained liquid phase () is at least partially used for contacting with the gas to be dehydrated.4. The method according to claim 1 , wherein the liquid COto be mixed with the gas has a temperature within a range of −60° C. to 20° C.5. The method according to claim 1 , wherein the gas to be mixed with the liquid COhas a temperature within a range of −40° C. to 50° C.6. The method according to claim 1 , wherein the temperature of the gas is lowered by expansion below 0° C.7. The method according to claim 1 , wherein the pressure of the gas is lowered by expansion below 7000 kPa.810. The method ...

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Номер записи: 66
14-08-2014 дата публикации

Clathrate desalination process using an ultrasonic actuator

Номер: US20140223958A1
Автор: McCormack Richard A., Ripmeester John A.
Принадлежит:

A freeze desalination process uses cyclopentane (“CH”) (14) as an agent for the formation of a gas hydrate as a clathrate (13). A crystallizer vessel (10) containing a mixture of seawater (11) and diffuse bubbles (18) of CHis cooled to allow a gas hydrate phase to form. An ultrasonic transducer (21) located in the bubble stream encourages nucleation and thus clathrate formation. 1. A method for desalination of water comprises:providing an amount of seawater;cooling said amount to a phase which allows for clathrate formation;injecting a dispersed clathrate-forming gas agent into said amount;imparting ultrasonic energy into said amount;collecting clathrate crystals from said amount; and,melting said crystals to form an amount of fresh water.2. The method of claim 1 , which further comprises augmenting said amount with a flow of additional seawater.3. The method of claim 1 , wherein said injecting occurs through a gas diffuser to create a stream of bubbles of said gas agent.4. The method of claim 1 , wherein said imparting comprises locating and activating an ultrasonic transducer within said amount.5. The method of claim 3 , wherein said imparting comprises locating and activating an ultrasonic transducer within said stream.6. The method of or claim 3 , wherein said activating comprises operating said transducer at a frequency of between about 30 and 50 Kilohertz.7. The method of claim 3 , which further comprises placing an amount of solid material particles within said stream.8. The method of claim 7 , wherein said solid material particles comprises silica gel particles.9. The method of claim 7 , wherein said imparting comprises locating and activating an ultrasonic transducer within said stream; and claim 7 , wherein said method further comprises:carrying said particles within a structure mounted to said transducer; wherein said structure comprises an array of apertures sized and shaped to contain said particles and allow passage of a portion of said stream ...

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Номер записи: 67
26-05-2016 дата публикации

PROCESS FOR PURIFICATION OF A SYNTHESIS GAS CONTAINING HYDROGEN AND IMPURITIES

Номер: US20160146535A1
Автор: CHIESA Damiano, Filippi Ermanno, Ostuni Raffaele
Принадлежит:

A process for purification of a current of hydrogen synthesis gas (), particularly in the front-end of an ammonia plant, wherein said gas contains hydrogen and minor amounts of carbon monoxide, carbon dioxide, water and impurities, said process including steps of methanation () of said current (), converting residual amounts of carbon monoxide and carbon dioxide to methane and water, dehydration () of the gas to remove water, and then a cryogenic purification () such as liquid nitrogen wash, to remove methane and Argon; a corresponding plant and method for revamping an ammonia plant are also disclosed. 1100151413100. A process for purification of a current of hydrogen synthesis gas () , said current being composed of hydrogen and minor amounts of carbon monoxide , carbon dioxide , water and impurities , said process including a step of cryogenic purification () , and dehydration () of syngas prior to said cryogenic purification , characterized by a step of methanation () of said current () , converting carbon monoxide and carbon dioxide to methane and water , prior to said steps of dehydration and cryogenic purification.2. A process according to claim 1 , wherein prior to said step of methanation claim 1 , the synthesis gas is subject to shift conversion of carbon monoxide to carbon dioxide claim 1 , and removal of carbon dioxide.3100106107. A process according to or claim 1 , said hydrogen synthesis gas () being obtained by reforming of a hydrocarbon source () with oxygen ().4. A process according to any of the previous claims claim 1 , wherein a portion of the gas claim 1 , after said step of methanation and dehydration claim 1 , bypasses said cryogenic purification.5. A process according to any of to claim 1 , said step of cryogenic purification comprising a liquid nitrogen wash.6. A process according to any of to claim 1 , for obtaining a make-up synthesis gas for the synthesis of ammonia.7. A process according to any of to claim 1 , said current of hydrogen ...

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Номер записи: 68
24-05-2018 дата публикации

WATER DESALINATION SYSTEM AND METHOD FOR FAST COOLING SALINE WATER USING FAST FREEZE PROCESS

Номер: US20180141826A1
Автор: Hammer Kimberly Nicole, Lissianski Vitali Victor
Принадлежит:

A desalinating system and process is disclosed. The desalination system comprises using a freeze or fast-cooling process to freeze saline water droplets in a controlled manner that provides for diffusion of salt ions to a center of each frozen saline water droplet and formation of salt crystals surrounded by pure water crystals. The pure water crystals and salt crystals are subsequently separated in an ice melter using heat exchange to form a pure water stream. 1. A system for desalination comprising:a feed source of saline water;a feed source of at least one refrigerant;a compressor, comprising an input fluidly coupled to the source of said at least one refrigerant and an output, and configured to generate a compressed vaporized refrigerant;a condenser comprising an input fluidly coupled to the compressor and a plurality of outputs, said condenser operatively configured to simultaneously melt frozen saline water droplets and generate a chilled, partially liquefied refrigerant stream;at least one expansion device comprising at least one input fluidly coupled to the condenser and at least one output configured to release a chilled refrigerant stream at a refrigerant stream injection velocity;a freezing chamber comprising at least one input to introduce the chilled refrigerant stream into the freezing chamber, and a first and second output; andat least one injector configured to introduce the saline water into the freezing chamber in the form of saline water droplets to freeze the saline water droplets,wherein one or more parameters relative to the saline water droplets and the chilled refrigerant stream provide for a controlled freezing of the saline water droplets to promote salt ions in the saline water droplets to diffuse towards a center of each of the frozen saline water droplets and form a plurality of salt crystals in a center of each frozen saline water droplet surrounded by a plurality of ice crystals comprising pure water.2. The system of claim 1 , wherein ...

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Номер записи: 69
11-06-2015 дата публикации

METHOD FOR PRODUCING HIGH PURITY GERMANE BY A CONTINUOUS OR SEMI-CONTINUOUS PROCESS

Номер: US20150158738A1
Автор: ARKLES Barry C., JR. George A., TIMBERLAKE
Принадлежит:

A continuous or semi-continuous process for producing a high purity germane includes (a) preparing a reaction mixture containing hydrogen and crude germane and (b) separating the hydrogen from the crude germane by a pressure swing adsorption process. The pressure swing adsorption process results in a hydrogen-rich product stream and a germane-rich product stream. 1. A continuous or semi-continuous process for producing a high purity germane containing less than 0.1 volume percent of impurities , the method comprising:(a) preparing a reaction mixture containing hydrogen and crude germane;(b) separating the hydrogen from the crude germane by a pressure swing adsorption process, the pressure swing adsorption process resulting in a hydrogen-rich product stream and a germane-rich product stream; and(c) purifying the germane-rich product stream by continuous distillation thereof to remove impurities therefrom and to produce a high purity germane containing less than 0.1 volume percent of impurities.2. The method of claim 1 , wherein the reaction mixture is prepared by contacting a germanium-containing compound with a hydrogen-containing reducing agent.3. The method of claim 2 , wherein the reducing agent is a borohydride.4. The method of claim 3 , wherein the germanium-containing compound is germanium dioxide.5. The method of claim 1 , wherein the pressure swing adsorption process takes place in a vessel including an adsorbent material having a form of a zeolite molecular sieve.65. The method of claim 5 , wherein the zeolite molecular sieve is a A zeolite molecular sieve.7. The method of claim 5 , wherein during the pressure swing adsorption process claim 5 , germane is adsorbed by and desorbed from the zeolite molecular sieve in respective adsorption and desorption stages.8. The method of claim 7 , wherein the reaction mixture further contains digermane and the digermane is adsorbed by and desorbed from the zeolite molecular sieve in the respective adsorption and ...

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Номер записи: 70
11-06-2015 дата публикации

METHOD OF REMOVING SOLIDS BY MODIFYING A LIQUID LEVEL IN A DISTILLATION TOWER

Номер: US20150159945A1
Автор: Northrop Paul Scott, Valencia Jaime A.
Принадлежит:

The present disclosure provides a method of separating a feed stream in a distillation tower. The method includes maintaining a controlled freeze zone section in a distillation tower; maintaining a melt tray assembly within the controlled freeze zone section that operates at a temperature and pressure at which solid melts; forming solids in a controlled freeze zone section; raising a liquid level of a liquid in the melt tray assembly when the solids accumulate on a mechanical component in the controlled freeze zone section; raising a liquid temperature of the liquid while raising the liquid level; and lowering the liquid level after at least one of (a) a predetermined time period has passed and (b) an alternative temperature of the mechanical component is within an expected temperature range of a baseline temperature of the mechanical component. 1. A method of separating a feed stream in a distillation tower comprising:maintaining a controlled freeze zone section in a distillation tower that operates at a temperature and pressure at which a solid forms;maintaining a melt tray assembly within the controlled freeze zone section that operates at a temperature and pressure at which the solid melts;forming solids in the controlled freeze zone section;raising a liquid level of a liquid in the melt tray assembly when the solids accumulate on a mechanical component in the controlled freeze zone section;raising a liquid temperature of the liquid while raising the liquid level; andlowering the liquid level after at least one of (a) a predetermined time period has passed and (b) an alternative temperature of the mechanical component is within an expected temperature range of a baseline temperature of the mechanical component.2. The method of claim 1 , wherein raising the liquid level comprises determining whether the solids have accumulated on the mechanical component.3. The method of claim 1 , wherein the mechanical component comprises a controlled freeze zone wall.4. The ...

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Номер записи: 71
11-06-2015 дата публикации

METHOD AND SYSTEM OF MODIFYING A LIQUID LEVEL DURING START-UP OPERATIONS

Номер: US20150159946A1
Автор: Valencia Jaime A.
Принадлежит:

The present disclosure provides a method for separating a feed stream in a distillation tower. The method includes operating a controlled freeze zone section in a distillation tower that separates a feed stream at a temperature and pressure at which the feed stream forms a solid in the controlled freeze zone section, wherein the feed stream includes a first contaminant; maintaining a melt tray assembly in the controlled freeze zone section; introducing the feed stream to the controlled freeze zone section; and accumulating a liquid in the melt tray assembly until the liquid is at a predetermined liquid level in the controlled freeze zone section, by: feeding a second contaminant to the controlled freeze zone section; and adding the second contaminant to the melt tray assembly, wherein the liquid comprises the second contaminant. 1. A method for separating a feed stream in a distillation tower , the method comprising:operating a controlled freeze zone section in a distillation tower that separates a feed stream at a temperature and pressure at which the feed stream forms a solid in the controlled freeze zone section, wherein the feed stream includes a first contaminant;maintaining a melt tray assembly in the controlled freeze zone section;introducing the feed stream to the controlled freeze zone section; and feeding a second contaminant to the controlled freeze zone section; and', 'adding the second contaminant to the melt tray assembly, wherein the liquid comprises the second contaminant., 'accumulating a liquid in the melt tray assembly until the liquid is at a predetermined liquid level in the controlled freeze zone section, by2. The method of claim 1 , wherein feeding the second contaminant occurs at least one of before and after introducing the feed stream.3. The method of claim 1 , wherein feeding the second contaminant comprises at least one of directly feeding the second contaminant to the controlled freeze zone section and indirectly feeding the second ...

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Номер записи: 72
11-06-2015 дата публикации

METHOD AND DEVICE FOR SEPARATING HYDROCARBONS AND CONTAMINANTS WITH A HEATING MECHANISM TO DESTABILIZE AND/OR PREVENT ADHESION OF SOLIDS

Номер: US20150159947A1
Автор: Deckman Harry W., Mart Charles J., Northrop Paul Scott, Valencia Jaime A., Wilkins James T.
Принадлежит:

The present disclosure provides a method for separating a feed stream in a distillation tower which includes separating a feed stream in a stripper section into an enriched contaminant bottom liquid stream and a freezing zone vapor stream; contacting the freezing zone vapor stream in the controlled freeze zone section with a freezing zone liquid stream at a temperature and pressure at which a solid and a hydrocarbon-enriched vapor stream form; directly applying heat to a controlled freeze zone wall of the controlled freeze zone section with a heating mechanism coupled to at least one of a controlled freeze zone internal surface of the controlled freeze zone wall and a controlled freeze zone external surface of the controlled freeze zone wall; and at least one of destabilizing and preventing adhesion of the solid to the controlled freeze zone wall with the heating mechanism. 1. A method for separating a feed stream in a distillation tower comprising:introducing a feed stream into one of a stripper section and a controlled freeze zone section of a distillation tower, the feed stream comprising a hydrocarbon and a contaminant;separating the feed stream in the stripper section into an enriched contaminant bottom liquid stream, comprising the contaminant, and a freezing zone vapor stream, comprising the hydrocarbon, at a temperature and pressure at which no solid forms;contacting the freezing zone vapor stream in the controlled freeze zone section with a freezing zone liquid stream, comprising the hydrocarbon, at a temperature and pressure at which a solid, comprising the contaminant, and a hydrocarbon-enriched vapor stream, comprising the hydrocarbon, form;directly applying heat to a controlled freeze zone wall of the controlled freeze zone section with a heating mechanism coupled to at least one of a controlled freeze zone internal surface of the controlled freeze zone wall and a controlled freeze zone external surface of the controlled freeze zone wall; andat least ...

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Номер записи: 73
28-08-2014 дата публикации

WATER CLUSTERS CONFINED IN NANO-ENVIRONMENTS

Номер: US20140243434A1
Автор: Johnson Keith, Price-Gallagher Matthew
Принадлежит: HydroElectron Ventures, Inc.

The disclosure describes a method including providing a nano-environment; and confining heavy or light water in the nano-environment such that at least one water cluster forms. 1. A method comprising:providing a nano-environment; andconfining heavy or light water in the nano-environment such that at least one water cluster forms.2. The method of wherein the providing step provides a nano-environment that comprises systems in solid claim 1 , liquid claim 1 , or gel phases and/in contact with macromolecules.3. The method of wherein the providing step provides a nano-environment that comprises a nanotube.4. The method of wherein the providing step provides a nano-environment that comprises a nano-layer.5. The method of wherein the providing step provides a nano-environment that comprises a carbon nanotube.6. The method of wherein the providing step provides a nano-environment that comprises a graphene nano-layer.76. The method of any of - wherein the providing step provides a nano-environment that is doped with an electron donating compound.8. The method of wherein the providing step provides a nano-environment that is doped with a variety of elements and alloys.9. The method of wherein the providing steps provides a nano-environment that is doped with a material selected from the group consisting of nitrogen claim 8 , palladium claim 8 , palladium-gold claim 8 , palladium-silver and combinations thereof.10. The method of wherein the confining step produces a water cluster that comprises at least one pentagonal water cluster.11. The method of wherein the confining step produces a water cluster that comprises at least one pentagonal-dodecahedral water cluster.12. The method of wherein the confining step produces a water cluster that comprises at least one water cluster with at least partial pentagonal-dodecahedral symmetry.13. The method of wherein the confining step produces a water cluster that comprises less than about 300 molecules.14. The method of wherein the ...

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Номер записи: 74
14-05-2020 дата публикации

AIR SEPARATION METHOD AND APPARATUS

Номер: US20200149808A1
Автор: Prosser Neil M.
Принадлежит:

A method and apparatus for separating air in which an oxygen-rich liquid stream is pumped and then heated within a heat exchanger to produce an oxygen product through indirect heat exchange with first and second boosted pressure air streams. The first boosted pressure air stream is cold compressed at an intermediate temperature of the heat exchanger, reintroduced into the heat exchanger at a warmer temperature and then fully cooled and liquefied. The second boosted pressure air stream, after having been partially cooled, is expanded to produce an exhaust stream that is in turn introduced into a lower pressure column producing the oxygen-rich liquid. The second boosted pressure air stream is partially cooled to a temperature no greater than the intermediate temperature at which the cold compression occurs so that both the first and second boosted pressure air streams are able to take part in the heating of the oxygen-rich stream. 128-. (canceled)29. An apparatus for separating air comprising:one or more main air compressors configured for producing a stream of compressed and purified air, wherein the stream of compressed and purified air is split into a first part of the stream of compressed and purified air, a second part of the stream of compressed and purified air that is further compressed in a first booster compressor to produce a first boosted pressure air stream, and a third part of the stream of compressed and purified air that is further compressed in a second booster compressor to produce a second boosted pressure air stream;a main heat exchange system configured to cool the first part of the stream of compressed and purified air, to partially cool the first boosted pressure air stream, and to partially cool the second boosted pressure air stream;a cold compressor configured to further compress the partially cooled first boosted pressure air stream and form a cold compressed stream, wherein the cold compressed stream is further cooled in the main heat ...

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Номер записи: 75
08-06-2017 дата публикации

Use of Eductor for Liquid Disposal from Vessel

Номер: US20170160010A1
Автор: KENEFAKE Daryl A., Wilkins James T.
Принадлежит:

A system for the processing of a hydrocarbon flare gas. An input gas stream contains a gas component and a liquid component. A knock-out drum separates the gas component from the liquid component. An eductor has a motive inlet, a suction inlet, and a discharge outlet. The separated liquid component is introduced into the suction inlet of the eductor. A high-pressure gas stream is introduced into the motive inlet of the eductor. The high-pressure gas stream has a pressure sufficient to draw the separated liquid component from the knock-out drum and through the discharge outlet. 1. A system for the processing of a hydrocarbon flare gas , comprising:an input gas stream containing a gas component and a liquid component;a knock-out drum that separates the gas component from the liquid component;an eductor having a motive inlet, a suction inlet, and a discharge outlet;wherein the separated liquid component is introduced into the suction inlet of the eductor; anda high-pressure gas stream introduced into the motive inlet of the eductor, the high-pressure gas stream having a pressure sufficient to draw the separated liquid component from the knock-out drum and through the discharge outlet.2. The system of claim 1 , wherein the knock-out drum has a boot or sump claim 1 , and wherein the separated liquid component is drawn from the boot or sump to the suction inlet of the eductor.3. The system of claim 1 , wherein the high-pressure gas stream is a defrost gas stream.4. The system of claim 1 , wherein the high-pressure gas stream has a pressure of about 100 psig and the input gas stream has a pressure between 1-2 psig.5. The system of claim 1 , further comprising a dry flare that flares the gas component of the input gas stream after the liquid component has been separated therefrom in the knock-out drum.6. A cryogenic or cold gas processing system claim 1 , comprising:an input gas stream containing a gas component and a liquid component;a knock-out drum that separates the gas ...

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Номер записи: 76
18-06-2015 дата публикации

Method For Producing Pressurized Gaseous Oxygen Through The Cryogenic Separation Of Air

Номер: US20150168056A1
Автор: Musicus Paul
Принадлежит: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

A method is provided for production of gaseous oxygen at moderate pressures by splitting a main air feed into at least three separate streams, with the first stream being fed to a heat exchanger and then a column system for rectification; the second stream being further compressed in a warm booster, partially cooled in the heat exchanger, expanded in a turbine coupled to the warm booster and then fed to the column system; the third stream being expanded in a warm expander before being introduced to the heat exchanger and introduced to the column system. In certain embodiments, substantially all of the main air feed is eventually introduced to the column system for rectification, resulting in reduced sizing of a main air compressor and improved product recoveries. 1. A method for producing pressurized gaseous oxygen through the cryogenic separation of air , the method comprising the steps of:obtaining a main air feed comprising filtered and compressed air;splitting the main air feed into at least a first air fraction, a second air fraction, and a third air fraction;fully cooling the first air fraction in a heat exchanger to a temperature suitable for rectification of the first air fraction to form a cooled air feed;withdrawing the cooled air feed from the heat exchanger and introducing the cooled air feed to a column system under conditions effective for rectification of the cooled air feed into low pressure gaseous nitrogen (LP GAN), liquid oxygen (LOX), liquid nitrogen (LIN), and high pressure gaseous nitrogen (HP GAN), wherein the column system comprises a double column having a higher pressure column and a lower pressure column;warming the LP GAN, LOX, and HP GAN in the heat exchanger;boosting the second air fraction in a warm booster to form a boosted second air fraction;partially cooling the boosted second air fraction in the heat exchanger and then expanding the boosted second air fraction in a turbine to form an expanded second air fraction;introducing the ...

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Номер записи: 77
18-06-2015 дата публикации

Process for producing liquid nitrogen

Номер: US20150168057A1
Автор: Paul Musicus
Принадлежит: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude

A process for producing a liquid nitrogen product through the cryogenic separation of air in a nitrogen production plant is provided. The nitrogen production plant can include a main air compressor; a heat exchanger; an air separation unit having a single column, a top condenser, and a bottom reboiler; a recycle compressor; at least one turbine-booster having a booster and a turbine; a liquid/gas separator; and a subcooler. The reboiler can be driven by gaseous nitrogen withdrawn from the recycle compressor, preferably at a first stage discharge of the recycle compressor. Additionally, the single column can be partly refluxed with liquid nitrogen split-off from a Joule-Thompson stream.

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Номер записи: 78
18-06-2015 дата публикации

APPARATUS FOR PRODUCING LIQUID NITROGEN

Номер: US20150168058A1
Автор: Musicus Paul
Принадлежит: L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude

An apparatus for producing liquid nitrogen is provided. The apparatus includes a heat exchanger, a pair of turbine-boosters, a warm compressor, an air separation unit having a single column, a top condenser and a bottom reboiler, a liquid/gas separator, and an optional subcooler. The apparatus is configured to produce merchant or non-merchant grade liquid nitrogen using the pair of turbine-boosters to provide refrigeration and energy for the process. 1. An apparatus for producing nitrogen through the cryogenic separation of air , the apparatus comprising:a heat exchanger configured to receive a main air feed comprising purified and compressed air at a pressure of at least 5 bar;an air separation unit in fluid communication with a cool side of the heat exchanger, the air separation unit configured to receive cooled air from the heat exchanger and produce gaseous nitrogen and waste oxygen, wherein the air separation unit comprises a single column having a bottom reboiler and a top condenser;a recycle compressor in fluid communication with a warm side of the heat exchanger such that the recycle compressor is configured to receive a nitrogen recycle from the heat exchanger, wherein at least a portion of the nitrogen recycle is made up of gaseous nitrogen from the air separation unit;a first turbine-booster having a first booster and a first turbine, the first booster in fluid communication with the recycle compressor such that the first booster is configured to receive a compressed nitrogen recycle from the recycle compressor;a second turbine-booster having a second booster and a second turbine, the second booster in fluid communication with the first booster such that the second booster is configured to receive a boosted nitrogen from the first booster, wherein an outlet of the second booster is in fluid communication with the heat exchanger such that the boosted nitrogen from the second booster is cooled within the heat exchanger, wherein the second turbine is in ...

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Номер записи: 79
04-09-2014 дата публикации

PURIFICATION OF ARGON THROUGH LIQUID PHASE CRYOGENIC ADSORPTION

Номер: US20140245781A1
Автор: Barrett Philip A., Du Hai, Kechagia Persefoni E., Pontonio Steven J., Stephenson Neil A.
Принадлежит:

The invention relates to a process for removing oxygen from liquid argon using a TSA (temperature swing adsorption) cyclical process that includes cooling an adsorbent bed to sustain argon in a liquid phase; supplying the adsorbent bed with a liquid argon feed that is contaminated with oxygen and purifying the liquid argon thereby producing an argon product with less oxygen contaminant than is in the initial liquid argon feed; draining the purified residual liquid argon product and sending purified argon out of the adsorbent bed. Regeneration of specially prepared adsorbent allows the adsorbent bed to warm up to temperatures that preclude the use of requiring either vacuum or evacuation of adsorbent from the bed. 1. An adsorption process for purifying a feed stream containing primarily liquid argon and oxygen , comprising the following cycle of process steps:a) supplying from the inlet of an adsorbent bed said liquid argon feed that contains oxygen, adsorbing at least part of the oxygen on the adsorbent thereby producing a purified liquid argon product leaving said adsorbent bed from the outlet with less oxygen than present in said liquid argon feed at the inlet;b) draining from said adsorbent bed purified residual liquid argon by introducing a displacement purge gas;c) allowing said adsorbent bed containing said adsorbent to warm to a temperature, desorbing at least part of the adsorbed oxygen and removing said adsorbed oxygen from the adsorbent bed such that the liquid argon feed may be supplied for purposes of repeating the cycle;d) cooling said adsorbent bed having an inlet and an outlet and containing an adsorbent such that said adsorbent bed is cooled to a temperature below the boiling point of argon;e) wherein said process steps (a)-(d) are repeated in a cyclical manner.2. The process of claim 1 , wherein the liquid argon feed for step (a) contains more than 10 parts per million of oxygen and less or equal to 10 claim 1 ,000 parts per million of oxygen and ...

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Номер записи: 80
04-09-2014 дата публикации

Process and Device for Separating Isotopes from a Gas Flow

Номер: US20140245885A1
Автор: Canosa André, Georges Robert, Morales Sebastien, Rowe Bertrand
Принадлежит:

A method for the isotopic separation of at least two different isotopes of a body in gaseous form by: 1. A method for the isotopic separation of at least two different isotopes of a body in gaseous form comprising the steps of:(a) converting into the form of a gas the body of interest containing the sought isotope;(b) creating a flow of said gas at supersonic speed, of the laminar or slightly turbulent type;(c) exciting the molecules by laser;(d) inhibiting, by means of a laser, the nucleation of one of the isotopologues, thus forming less massive aggregates of said isotopologue than the aggregates formed by the molecules of the other isotopologue; (e) ionising the molecules and aggregates of said gas;(f) submitting the ionised molecules and aggregates of molecules to an electromagnetic field to make the ionised molecules and aggregates of one of the isotopologues migrate towards the outside of the flow, because of the difference in mass between the respective aggregates of the two isotopologues; and(g) retrieving the part of the gas flow with the highest concentration in the sought isotope.2. A method according to claim 1 , characterised in that the gas is SF claim 1 , UFor MoF.3. A method according to claim 1 , characterised in that the molecules or atoms are ionised by at least one laser or an electron beam claim 1 , for example a laser of the excimer type in the case of UFgas.4. A method according to claim 1 , characterised in that the gas is mixed with at least one first inert gas claim 1 , such as helium claim 1 , argon or hydrogen.5. A method according to claim 1 , characterised in that the speed of the gaseous flow is supersonic.6. A method according to claim 1 , characterised in that the means to create the laminar or slightly turbulent flow is a nozzle claim 1 , of the de Laval type with flat geometry claim 1 , comprising:(a) an upstream external wall in the shape of a convergent whose entry corresponds to the flared part and the wall preferably has a ...

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Номер записи: 81
04-09-2014 дата публикации

FILL PACK ASSEMBLY AND METHOD WITH BONDED SHEET PAIRS

Номер: US20140246793A1
Автор: Brenneke Glenn S., JR. Ohler L., Kinney, Mockry Eldon F., Mortensen Kenneth P.
Принадлежит:

A fill pack assembly and method for assembling a fill pack from individual sheets utilizes integrally bonded sheet pairs. Each sheet pair is a pair of two individual adjacent fill sheets which have been bonded together via any suitable bonding method. A plurality of the thus formed sheet pairs can then be attached together to form an entire fill pack or portion of a fill pack. Such fill packs are useful in heat exchange devices such as industrial cooling towers. 1. A method of assembling a fill pack from individual fill sheets , comprising:integrally bonding two individual adjacent fill sheets, wherein each sheet has a perimeter and an internal contact point, wherein said internal contact point is one of a peak or a valley disposed within said perimeter and wherein each respective internal contact point engages the other contact point during assembly, to each other to form a first bonded sheet pair;repeating the step of integrally bonding two individual adjacent fill sheets to each other to form a second bonded sheet pair;attaching said first and said second bonded sheet pair pairs to each other, wherein the step of attaching the first and second bonded sheet pairs together comprises holding them together using a mounting tube having a first end and a second end which passes through apertures in the first and second bonded sheet pairs; and a first cap attached to said first end and a second cap attached to said second end.2. The method of claim 1 , further comprising repeating the steps of integrally bonding two individual adjacent fill sheets claim 1 , and repeating the steps of attaching bonded sheet pairs to each other.3. The method of claim 1 , wherein the step of bonding two individual sheets together to form a bonded sheet pair comprises twin sheet vacuum forming4. The method of claim 1 , wherein said step of integrally bonding two individual sheets comprises placing the two individual adjacent fill sheets between a pair of electrodes and radio frequency (RF) ...

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Номер записи: 82
11-09-2014 дата публикации

METHOD FOR RECOVERING HYDROCARBON COMPOUNDS AND A HYDROCARBON RECOVERY APPARATUS FROM A GASEOUS BY-PRODUCT

Номер: US20140250946A1
Автор: Tasaka Kazuhiko
Принадлежит:

There is provided a method for recovering hydrocarbon compounds from a gaseous by-products generated in the Fisher-Tropsch synthesis reaction, the method comprising a pressurizing step in which the gaseous by-products are pressurized, a cooling step in which the pressurized gaseous by-products are pressurized to liquefy hydrocarbon compounds in the gaseous by-products, and a separating step in which the hydrocarbon compounds liquefied in the cooling step are separated from the remaining gaseous by-products.

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Номер записи: 83
21-05-2020 дата публикации

PROCESS FOR ISOLATING 170 ISOTOPE FROM WATER AND PROCESS FOR CONCENTRATING 170 ISOTOPE USING THE SAME

Номер: US20200156938A1
Автор: Cha Yong-Ho, Jeong Do-Young, Kim Taek-Soo, Kim Yonghee, Lee Lim, Park Hyounmin
Принадлежит:

A process for isolating O from water and a process for concentrating O by using the same are provided. The process for isolating O from water includes: mixing O-containing water with formaldehyde to prepare an aqueous formaldehyde solution; heating the aqueous formaldehyde solution to generate a vapor mixture containing water vapor and formaldehyde vapor; and obtaining O-depleted water, residual formaldehyde, and a gas mixture containing hydrogen and O-enriched carbon monoxide, through photodissociating the vapor mixture. An O-enriched water production process includes: an operation of adding hydrogen to the gas mixture to induce a catalytic methanation reaction to synthesize methane (CH) and O-enriched water (HO) through methanation, the operation being carried out following the process for isolating O from water. 1. A process for isolating O from water , comprising:{'sup': '17', 'preparing an aqueous formaldehyde solution by mixing O -containing water with formaldehyde;'}preparing a vapor mixture containing water vapor and formaldehyde vapor by heating the aqueous formaldehyde solution; and{'sup': 17', '17, 'obtaining O-depleted water, residual formaldehyde, and a gas mixture containing hydrogen and O -enriched carbon monoxide, through photodissociating the vapor mixture.'}2. The process for isolating O from water of claim 1 , wherein the formaldehyde is mixed with water in a molar ratio of formaldehyde to water in a range of 0.01-0.3.3. The process for isolating O from water of claim 1 , wherein the heating is carried out at a temperature in a range of 320-400 K.4. The process for isolating O from water of claim 1 , wherein the photodissociating the vapor mixture is carried out under a pressure in a range of 1-15 Torr.5. The process for isolating O from water of claim 1 , wherein a wavenumber of a photodissociating laser for the photodissociating the vapor mixture is in a range of 28 1 ,370-28 1 ,400 cm.6. The process for isolating O from water of claim 5 , the ...

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Номер записи: 84
30-05-2019 дата публикации

ATOMIC FORCIPES AND NUCLEAR MAGNETIC ISOTOPE SEPARATION METHOD AND APPARATUS

Номер: US20190162798A1
Автор: BUTZLOFF Peter Robert
Принадлежит:

Atomic forcipes is a nanomechanical magnetoelectric element having an insulator, an atom-thick conductive graphene sheet suspended as a heterostructure onto the insulator, and a gallery between the insulator and the graphene sheet. Atomic forcipes can be actuated acoustically or electromagnetically. Activation generates a chemical potential of directionally enhanced chemical reaction rate. Atomic forcipes can be formed by selecting enhanced graphene having a particle size, providing piezoelectric smectite clay of the particle size, combining graphene particles with clay, adding a compatibilizer, and irradiating with ultrasound, UV, or microwaves. Isotope separation apparatus and methods are supported by atomic forcipes. A method by mixing an aqueous phase suspension of atomic forcipes with nuclear magnetic isotope (NMI) ions, applying ultrasound to promote NMI ion intercalation, applying ultraviolet light to generate free radicals on the NMI ions, and extracting enriched NMI ions from the piezoelectric sheets. Another method employs nuclear spin using nuclear magnetic stiction. 1. A metamaterial apparatus , comprising: an insulator;', 'a conductive graphene sheet suspended as a heterostructure onto the insulator, wherein the conductive graphene structure has atomic-scale thickness; and', 'a gallery between the insulator and the conductive graphene sheet, and wherein the nanomechanical ME element comprises atomic forcipes., 'a nanomechanical magnetoelectric (ME) element having2. The metamaterial apparatus of claim 1 , wherein:the insulator comprises a fractional topological insulator.3. The metamaterial apparatus of claim 2 ,wherein the atomic forcipes are acoustically-actuated, and wherein acoustic actuation further comprises: sonic waves provided to the atomic forcipes to stimulate magnetization oscillations in the graphene sheet of the atomic forcipes, wherein the sonic waves have a frequency of between about 20 Hz to about 2.0 GHz, and wherein the magnetization ...

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Номер записи: 85
18-09-2014 дата публикации

Systems and Methods for Enhanced Recovery of NGL Hydrocarbons

Номер: US20140260421A1
Автор: Elliot Douglas, Golikeri Sudhir, Lee Guang Chung, Yao Jame, Yu Ji
Принадлежит: IPSI L.L.C

Systems and methods for the enhanced recovery of ethane and heavier hydrocarbons using an absorbing agent. Typical absorbing agents include one or more C3+ alkanes. The systems and methods separate components of a feed gas containing methane and heavier hydrocarbons, which maximizes ethane recovery, without requiring appreciable increases in capital and operating costs, and improves the safety margin with respect to the risk of COfreeze-out. 1. A method for recovering ethane and heavier hydrocarbons from a hydrocarbon feed gas , which comprises:cooling an absorbing agent and an inlet stream comprising the feed gas in a heat exchanger to produce a cooled absorbing agent and a chilled inlet stream;separating the chilled inlet stream in a separator to produce a liquid hydrocarbon stream and an overhead vapor stream;combining the cooled absorbing agent with a portion of the overhead vapor stream to form a combined stream;cooling the combined stream into a reflux exchanger to produce a subcooled liquid stream;expanding another portion of the overhead vapor stream in an expander to produce a demethanizer feed stream; andintroducing the liquid hydrocarbon stream, the subcooled liquid stream and the demethanizer feed stream into a demethanizer column, wherein the ethane and heavier hydrocarbons are recovered as a bottom product in the demethanizer column and methane and lighter hydrocarbons are recovered as a top product in the demethanizer column.2. The method of claim 1 , wherein the absorbing agent comprises one or more C3+ alkanes.3. The method of claim 1 , wherein the hydrocarbon feed gas comprises methane and heavier hydrocarbons.4. The method of claim 1 , wherein the absorbing agent and the inlet stream are cooled in the heat exchanger by indirect heat exchange with a residue stream claim 1 , a side reboiling stream and a demethanizer reboiling stream.5. The method of claim 1 , further comprising processing the methane and lighter hydrocarbons in the reflux exchanger ...

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Номер записи: 86
22-06-2017 дата публикации

FLOW MANAGEMENT AND CO2-RECOVERY APPARATUS AND METHOD OF USE

Номер: US20170173520A1
Автор: Acharya Harish Radhakrishna, Shisler Roger Allen
Принадлежит:

An apparatus and method for flow management and CO-recovery from a COcontaining hydrocarbon flow stream, such as a post CO-stimulation flowback stream. The apparatus including a flow control zone, a gas separation zone, a pretreatment zone, and a CO-capture zone. The CO-capture zone is in fluid communication with the pretreatment zone to provide CO-capture from a pretreated flowback gas stream and output a captured CO-flow stream. The CO-capture zone includes a flow splitter to direct a first portion of the pretreated flowback gas stream to a CO-enricher to provide an enriched CO-stream for mixing with a second portion of the pretreated flowback gas to form a mixed stream. The CO-capture zone further includes at least one condenser to output the captured CO-flow stream. 1. An apparatus for flow management and CO-recovery from a COcontaining hydrocarbon flow stream comprising:{'sub': 2', '2', '2, 'a flow control zone in fluid communication with the COcontaining hydrocarbon flow stream to provide control of a flowrate of the COcontaining hydrocarbon flow stream and output a modified COcontaining hydrocarbon flow stream;'}{'sub': 2', '2', '2, 'a gas separation zone in fluid communication with the modified COcontaining hydrocarbon flow stream to provide separation of a gas from the modified COcontaining hydrocarbon flow stream and output a COcontaining hydrocarbon process stream;'}{'sub': '2', 'a pretreatment zone in fluid communication with the gas separation zone to provide removal of one or more of trace solids, aerogels, oil, hydrogen sulfides, water and non-gas liquids from the COcontaining hydrocarbon process stream and output a pretreated gas stream; and'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2, 'a CO-capture zone in fluid communication with the pretreatment zone to provide CO-capture from the pretreated flowback gas stream and output a captured CO-flow stream, the CO-capture zone including a flow splitter to direct a second portion of the pretreated ...

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Номер записи: 87
21-06-2018 дата публикации

Filtering Coil for Screw Press

Номер: US20180172346A1
Автор: Baxter Larry, Chamberlain Jacom, Chamberlain Skyler, Davis Nathan, Stitt Kyler
Принадлежит:

Devices, systems, and methods for concentrating a slurry are disclosed. A concentrator is utilized, including a cylindrical vessel containing a cylindrical filter and a screw. The cylindrical filter consists of a flat coil compression spring. The screw passes through the cylindrical filter. A slurry passed through the cylindrical vessel is concentrated. The slurry is conveyed by the screw along an interior of the cylindrical filter. Any two concentric coils of the spring are spaced such that the solid is prevented from passing between them. The slurry is concentrated to produce a concentrated slurry by restricting the product outlet such that a back pressure is created in the cylindrical vessel. The back pressure causes a portion of the liquid to pass between the concentric coils of the spring and out a fluid outlet. The concentrated slurry passes out a product outlet. 1. A concentrator device comprising:a cylindrical vessel comprising a fluid inlet, a fluid outlet, and a product outlet, and wherein the cylindrical vessel has a first inner diameter and a longitudinal axis;a cylindrical filter comprising a flat coil compression spring having a geometric center located on the longitudinal axis and a second outer diameter and a second inner diameter, wherein the second outer diameter is smaller than the first inner diameter such that a space between an outer side wall of the flat coil compression spring and an inner wall of the cylindrical vessel forms a fluid plenum, the fluid outlet being adjacent to the fluid plenum;a screw passing through the cylindrical filter along the longitudinal axis, an outer edge of the screw having a first outer diameter, wherein the first outer diameter is substantially the same as the second inner diameter such that the outer edge of the screw is adjacent to an inner side wall of the flat coil compression spring without contact.2. The concentrator device of claim 1 , wherein any two concentric coils of the flat coil compression spring are ...

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Номер записи: 88
22-06-2017 дата публикации

FLOW MANAGEMENT AND CO2-RECOVERY APPARATUS AND METHOD OF USE

Номер: US20170176100A1
Автор: Acharya Harish Radhakrishna, Shisler Roger Allen
Принадлежит:

An apparatus and method for flow management and CO-recovery from a COcontaining hydrocarbon flow stream, such as a post CO-stimulation flowback stream. The apparatus including a flow control zone, a gas separation zone, a pretreatment zone, and a CO-capture zone. The CO-capture zone is in fluid communication with the pretreatment zone to provide CO-capture from a pretreated flowback gas stream and output a captured CO-flow stream. The CO-capture zone includes a first CO-enricher and at least one additional COenricher disposed downstream of the first COenricher and in cascading relationship to provide a CO-rich permeate stream, the CO-capture zone further including at least one condenser to condense the enriched CO-stream and output the captured CO-flow stream. 1. An apparatus for flow management and CO-recovery from a COcontaining hydrocarbon flow stream comprising:{'sub': 2', '2', '2, 'a flow control zone in fluid communication with the COcontaining hydrocarbon flow stream to provide control of a flowrate of the COcontaining hydrocarbon flow stream and output a modified COcontaining hydrocarbon flow stream;'}{'sub': 2', '2', '2, 'a gas separation zone in fluid communication with the modified COcontaining hydrocarbon flow stream to provide separation of a gas from the modified COcontaining hydrocarbon flow stream and output a COcontaining hydrocarbon process stream;'}{'sub': '2', 'a pretreatment zone in fluid communication with the gas separation zone to provide removal of one or more of trace solids, aerogels, oil, hydrogen sulfides, water and non-gas liquids from the COcontaining hydrocarbon process stream and output a pretreated gas stream; and'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2, 'a CO-capture zone in fluid communication with the pretreatment zone to provide CO-capture from the pretreated gas stream and output a captured CO-flow stream, the CO-capture zone including a first CO-enricher and at least one additional CO-enricher disposed ...

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Номер записи: 89
02-07-2015 дата публикации

Process For Recovering Hydrocarbons From Crude Carbon Dioxide Fluid

Номер: US20150184932A1
Автор: Higginbotham Paul, Palamara John Eugene, White Vincent, Yang Liu
Принадлежит: AIR PRODUCTS AND CHEMICALS, INC.

The power required to recover C hydrocarbons from crude carbon dioxide comprising C hydrocarbons and hydrogen sulfide may be reduced by distilling the crude carbon dioxide to produce carbon dioxide-enriched overhead vapor and C hydrocarbon-enriched bottoms liquid such that the hydrogen sulfide is rejected with the overhead vapor. Power consumption reductions may be achieved by incorporating a heat pump cycle using carbon dioxide vapor as working fluid to provide at least a part of the refrigeration duty and using a side reboiler to reduce the bottom reboiler duty. Where the bottoms liquid is further processed to produce “lighter” and “heavier” hydrocarbon fractions, the process enables optimization of upgrading crude oil on the basis of API gravity, Reid Vapor pressure and/or viscosity. 1. A process for recovering C hydrocarbon compounds from crude carbon dioxide fluid comprising C hydrocarbon compounds and at least one non-hydrocarbon “heavy” impurity , said process comprising:{'sub': 1', '3', '3+, 'feeding crude carbon dioxide fluid to a distillation column system for distillation to produce carbon dioxide-enriched overhead vapor comprising C-Chydrocarbon compounds and said non-hydrocarbon “heavy” impurity, and C hydrocarbon-enriched bottoms liquid;'}{'sub': '3+', 're-boiling said distillation column system by at least partially vaporizing by indirect heat exchange at least a portion of said C hydrocarbon-enriched bottoms liquid and at least one intermediate liquid in or taken from said distillation column system to provide vapor for said distillation column system;'}cooling and at least partially condensing carbon dioxide-enriched overhead vapor and/or a compressed carbon dioxide-enriched recycle gas produced therefrom, by indirect heat exchange to produce at least partially condensed carbon dioxide-enriched gas; andproviding at least a portion of said at least partially condensed carbon dioxide-enriched gas as reflux for said distillation column system.2. The ...

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Номер записи: 90
30-06-2016 дата публикации

METHOD AND DEVICE FOR DISCHARGING COMPONENTS THAT ARE LESS VOLATILE THAN OXYGEN FROM AN AIR SEPARATION PLANT

Номер: US20160187060A1
Автор: Kirchner Lars
Принадлежит:

A method and plant for discharging components that are less volatile than oxygen from an air separation plant that contains a main heat exchanger a side condenser and a two-column distillation column system for nitrogen-oxygen separation. The side condenser is constructed as a condenser-evaporator and is arranged in a vessel. A part of the feed air is cooled in the main heat exchanger and liquefied at least in part in the side condenser. A first oxygen fraction is withdrawn in the liquid state from the low-pressure column, introduced into the vessel of the side condenser and in part vaporized. A purge stream is taken off from the bottom of the vessel in the liquid state and discharged or withdrawn as end product. The vessel has a mass transfer section above the side condenser, which mass transfer section corresponds to more than one theoretical plate and fewer than 10 theoretical plates. 2. The method according to claim 1 , characterized in that the third oxygen fraction is brought to an elevated pressure in the liquid state by a pump and at this elevated pressure is vaporized in an external evaporator claim 1 , wherein the vaporizing proceeds in the external evaporator.3. The method according to claim 2 , characterized in that the vaporizing proceeds in indirect heat exchange with air or with a water bath.4. The method according to claim 1 , characterized in that the third oxygen fraction is let out into the atmosphere in a gaseous state or withdrawn as gaseous product.5. The method according to claim 1 , characterized in that at least a part of the first oxygen fraction is introduced into the vessel of the side condenser above the mass transfer section.6. The method according to claim 1 , characterized in that a part of the first oxygen fraction is introduced into the vessel of the side condenser below the mass transfer section.7. The method according to claim 1 , characterized in that the first oxygen fraction has an oxygen content of more than 89.0 mol %.8. The ...

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Номер записи: 91
30-06-2016 дата публикации

Accumulation and Melt Tray Assembly for a Distillation Tower

Номер: US20160187061A1
Автор: CASSIMERE Brandon, Denton Robert D., Pon Wayne S., Urbanski Nicholas F.
Принадлежит:

The disclosure includes techniques associated with a collector tray assembly for a cryogenic distillation tower disposed below a slurry mix zone and above a lower distillation zone, wherein the collector tray assembly comprises a deck at a lower end of the slurry mix zone, and wherein the deck comprises at least one vapor riser configured to pass the vapor from the lower distillation zone into the slurry mix zone, wherein the vapor riser comprises a substantially vertical heat transfer section configured to pass the vapor substantially upwards through the slurry mix zone, and a vapor outlet section comprising at least one vapor outlet, wherein the vapor outlet section is below the heat transfer section. 1. A cryogenic distillation tower system for separating acid gases from hydrocarbons in a raw gas stream , comprising:a controlled freezing zone configured to separate the raw gas stream into an overhead methane gas stream and a substantially solid material comprised of precipitated carbon dioxide;a lower distillation zone configured to receive a bottoms stream comprising acid gases in liquid phase from the controlled freezing zone, and further configured to pass a vapor separated from the acid gases, wherein the acid gas comprises carbon dioxide, hydrogen sulfide, ethane, propane, butane, hydrogen sulfide, aromatic hydrocarbons, or combinations thereof, in substantially liquid phase;a slurry mix zone below the controlled freezing zone configured to house a liquid bath, and wherein the slurry mix zone is configured to receive the substantially solid material from the controlled freezing zone; and a substantially vertical heat transfer section configured to pass the vapor substantially upwards through the slurry mix zone; and', 'a vapor outlet section comprising at least one vapor outlet, wherein the vapor outlet section is below the heat transfer section., 'at least one vapor riser configured to pass the vapor from the lower distillation zone into the slurry mix zone ...

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Номер записи: 92
06-07-2017 дата публикации

Improvements in Air Purification Units

Номер: US20170191752A1
Автор: Castelucci Nicola, Riley Richard
Принадлежит:

A liquid air energy storage system comprises an air liquefier, a liquid air storage facility for storing the liquefied air, and a power recovery unit coupled to the liquid air storage facility. The air liquefier comprises an air input, an adsorption air purification unit for purifying the input air, and a cold box for liquefying the purified air. The power recovery unit comprise a pump for pressurizing the liquefied air from the liquid air storage facility; an evaporator for transforming the high-pressure liquefied air into high-pressure gaseous air; an expansion turbine capable of being driven by the high-pressure gaseous air; a generator for generating electricity from the expansion turbine; and an exhaust for exhausting low-pressure gaseous air from the expansion turbine. The exhaust is coupled to the adsorption air purification unit such that at least a portion of the low-pressure gaseous air exhausted from the expansion turbine is usable to regenerate the adsorption air purification unit. 1. A liquid air energy storage system , comprising: an air input having compression means configured to compress input air and cooling means configured to cool the input air;', 'an adsorption air purification unit coupled to the air input and configured to purify the compressed and cooled input air from the air input; and', 'a cold box coupled to the adsorption air purification unit and configured to liquefy the purified air from the adsorption air purification unit;, 'an air liquefier comprisinga liquid air storage facility for storing the liquefied air from the air liquefier; a pump configured to pressurize the liquefied air from the liquid air storage facility into a high-pressure liquefied air;', 'an evaporator configured to transform the high-pressure liquefied air from the pump into high-pressure gaseous air;', 'an expansion turbine coupled to the evaporator and capable of being driven by the high-pressure gaseous air from the evaporator;', 'a generator coupled to the ...

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Номер записи: 93
13-07-2017 дата публикации

Reducing refrigeration duty on a refrigeration unit in a gas processing system

Номер: US20170198966A1
Автор: David Allen KENNEDY, Eduardo Andrade, John Raymond ZIGTEMA, Negar Davani
Принадлежит: GE Oil and Gas Inc

A liquefaction process configured to facilitate thermal transfer in a heat exchanger during liquefaction of a natural gas feedstock. The liquefaction process can include compressing a process stream to a first pressure, the process stream comprising predominantly methane, cooling the process stream to a first temperature, expanding the process stream from the first pressure to a second pressure that is less than the first pressure, bleeding-off a first product from the process stream at the second pressure, and conditioning the first product for storage as liquid natural gas (LNG).

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Номер записи: 94
13-07-2017 дата публикации

COOLING TOWER INTEGRATED INLET LOUVER FILL

Номер: US20170198992A1
Автор: Shin Yoon K.
Принадлежит:

A fill sheet arrangement in a direct heat exchange section of a cooling tower is provided. Each fill sheet includes ridges, grooves, separators, and an air inlet louver zone itself having ridges, grooves and separators, that improve the performance of the fill sheet arrangement when installed as a direct heat exchange section of a cooling tower. The air inlet louver zone improves the air flow capabilities and performance of the direct heat exchange section by limiting the evaporative liquid from leaving the fill sheet. 1. An indexing feature for use in louvers comprising:a first louver zone having a having a plurality of equally spaced ridges and grooves, a second louver zone adjacent and oriented in the same direction as the first louver zone, wherein a plurality of ridges of the first louver zone touches a plurality of grooves of the second louver zone thereby forming a plurality of air tunnel walls between the first louver zone and the second louver zone;wherein one of the plurality of air tunnel walls comprises: a recessed ridge;two guide walls extending from the recessed ridge toward its adjacent grooves;a male indexer extending from the groove of the air tunnel to the recessed ridge of the air tunnel;two air passageways between the male indexer and the two guide walls; andtwo curved ridge cutouts in the air tunnel walls adjacent the male indexer, wherein air passageways between the male indexer and air tunnel walls are enlarged and air bypass openings are created for pressure equalization.2. The indexing feature ofwherein a pair of curved ridge cutouts is present in opposing air tunnel walls.3. The indexing feature ofwherein the curved ridge cutouts increase the size of air passage ways and allow air to go around the male indexer.4. The indexing feature of{'b': 30', '60, 'wherein the curved ridge cutouts start near a base of the male indexer and open up toward a plane of the plurality of ridges at an angle of from to degrees.'}5. The indexing feature ofwherein ...

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Номер записи: 95
06-08-2015 дата публикации

METHOD FOR ENRICHING OXYGEN ISOTOPE

Номер: US20150217231A1
Автор: Hayashida Shigeru, IGARASHI Takehiro, KAMBE Takashi
Принадлежит:

The present invention provides a method for enriching an oxygen isotope which enables the oxygen isotope to be enriched without requiring regular replenishment of large amounts of the nitric oxide raw material and with a small liquid NO hold-up volume, without reducing the separation efficiency for the oxygen isotope. By performing a chemical exchange between a water acquired by adding hydrogen to an oxygen having a crudely enriched oxygen isotope produced by a first distillation device, and a nitric oxide discharged from a second distillation device, a nitric oxide having an enriched concentration of the oxygen isotope and a water having a reduced concentration of the oxygen isotope are obtained, and the nitric oxide is supplied to the second distillation device, while an oxygen obtained by electrolysis of the water having a reduced concentration of the oxygen isotope is returned to the first distillation device. 1. A method for enriching an oxygen isotope comprising:a step of acquiring an oxygen having a crudely enriched oxygen isotope by distilling a raw material oxygen using a first distillation device,a step of acquiring a water by hydrogenating the oxygen having a crudely enriched oxygen isotope,a step of acquiring a nitric oxide discharged upon distillation of a raw material nitric oxide using a second distillation device, anda nitric oxide and water acquisition step of performing a chemical exchange between the water and the discharged nitric oxide, thereby acquiring a nitric oxide having an enriched concentration of the oxygen isotope and a water having a reduced concentration of the oxygen isotope, whereinthe nitric oxide having an enriched concentration of the oxygen isotope is supplied to the second distillation device, and an oxygen obtained by electrolysis of the water having a reduced concentration of the oxygen isotope is returned to the first distillation device.2. The method for enriching an oxygen isotope according to claim 1 , wherein in the step ...

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Номер записи: 96
16-10-2014 дата публикации

Thermally Integrated Process and Apparatus for Purification and Separation of Components of a Synthesis Gas

Номер: US20140305162A1
Автор: Callens Guylaine, Hernandez Antoine, MARTY Pascal, Meyer Manfred, Prost Denis, Schriefl Alexander, Tsevery Jean-Marc, Victor Marie-Pascal
Принадлежит:

Process for the purification and separation of a synthesis gas stream containing hydrogen, carbon monoxide and carbon dioxide in which synthesis gas is purified in a purification unit (W) involving a methanol washing step to remove carbon dioxide, the carbon dioxide depleted synthesis gas is purified by adsorption (P) to produce a purified synthesis gas stream and the purified gas stream is sent to a cryogenic separation unit (C) where it is cooled and separated by cryogenic separation in a column of a column system, at least one stream () enriched in carbon monoxide is removed from a column of the column system, warmed and divided in two, one part of the stream being removed from the cryogenic separation unit as a first stream, the other part of the stream forming a second stream (B, B) and being sent to the purification unit wherein it is warmed and the warmed second stream is mixed with the first stream. 115-. (canceled)16. A process for the purification and separation of a synthesis gas stream containing hydrogen , carbon monoxide and carbon dioxide , the method comprising the steps of:purifying the synthesis gas in a purification unit using a methanol washing step to remove carbon dioxide to form a carbon dioxide depleted synthesis gas;purifying the carbon dioxide depleted synthesis gas by adsorption to produce a purified synthesis gas stream;sending the purified synthesis gas stream to a cryogenic unit where the purified synthesis gas stream is cooled and separated by cryogenic separation in the cryogenic separation unit to produce an enriched carbon monoxide stream; anddividing the enriched carbon monoxide stream into a first part and a second part, wherein the first part is removed from the cryogenic separation unit to form a first stream, wherein the second part is sent to the purification unit wherein the second part is warmed and then mixed with the first stream.17. A process according to claim 16 , wherein the second part of the enriched carbon monoxide ...

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Номер записи: 97
20-08-2015 дата публикации

SYSTEMS AND METHODS FOR PRODUCING CNG AND NGLS FROM RAW NATURAL GAS, FLARE GAS, STRANDED GAS, AND/OR ASSOCIATED GAS

Номер: US20150233634A1
Автор: Hotton Kevin, LEWIS Matthew, Sargsyan Gevorg, YOUNG Andrew, Zubrin Robert M.
Принадлежит:

The present invention is a field-deployable system for producing compressed natural gas (CNG) and natural gas liquids (NGLs) from a raw gas stream comprising a compressor; a dehydrator; a refrigerator having one or more stages; and a separation subsystem adapted to separate the raw gas stream into three useable product streams: a methane stream that is at least 70% methane, an ethane-rich stream, and a NGLs stream having a vapor pressure of no more than 17 bar (250 psi) at 38° C. (100° F.). The methane stream is sufficiently lean to be useable in existing natural gas engines without modification, and is compressed to produce CNG. The system can be utilized to capture and provide value to stranded or flared gas from liquids-rich gas production sites, by producing natural gas liquids for transport, and CNG which can be transported and is suitable for use in existing gas generators, vehicles, and/or trucks. 1. A system for converting a raw natural gas stream into three useable streams , including compressed natural gas (CNG) , natural gas liquids (NGLs) , and a stream to power the system itself , the system comprising:one or more compressors adapted to compress the raw natural gas stream;a dehydration subsystem adapted to remove trace humidity from the compressed natural gas stream;a refrigeration subsystem adapted to lower a temperature of the dehydrated, compressed natural gas stream to a low temperature, the refrigeration subsystem comprising a high-stage cascade refrigeration loop and a low-stage autocascade refrigeration loop having mixed hydrocarbon refrigerants;a separation subsystem adapted to separate the dehydrated, compressed, and refrigerated natural gas stream into three product streams consisting essentially of a methane stream that is at least 70% methane, an ethane-rich stream that is high in ethane content, and a natural gas liquids (NGLs) stream having a vapor pressure of no more than 17 bar at 38° C.;a CNG compressor for compressing the methane ...

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Номер записи: 98
10-08-2017 дата публикации

METHOD AND PLANT FOR THE PURIFICATION OF CARBON DIOXIDE USING LIQUID CARBON DIOXIDE

Номер: US20170227285A1
Автор: Find Rasmus
Принадлежит: UNION ENGINEERING A/S

The present invention relates to an improved method for removing contaminants from a gaseous stream substantially comprising carbon dioxide. More specifically, the method comprises the step of subjecting the gaseous stream to an absorption step in which the absorbent is liquid carbon dioxide wherein the waste of carbon dioxide is minimized by utilizing a compressing means for generating a pressure difference between two streams in a reboiler. 1. A method for removing at least one contaminant from a feed stream (f) substantially comprising carbon dioxide , said method comprising the step of subjecting the feed stream (f) to{'b': 2', '2', '2', '3, 'a) a purification step in a column having a top, bottom and an intermediate section, the purification step provides a contaminant lean stream (g) leaving the top section of the column and a contaminant rich liquid stream (l) leaving, optionally the bottom section of, the column, said contaminant rich liquid stream (l) being fed to the reboiler (A) and wherein the contaminant lean stream leaving the top section of the column is further subjected to the steps selected from the two options1:{'b': 2', '4, 'b1) compressing the contaminant lean stream (g) providing a compressed gaseous stream (g)'}{'b': 4', '3', '3, 'c1) cooling the compressed gaseous stream (g) in the reboiler (A) providing at least a product stream (p) and a gaseous stream (g); and'}{'b': '3', 'd1) feeding the gaseous stream (g) to the column at the bottom section of the column;'}and2:{'b': 2', '3, 'b2) cooling the contaminant lean stream (g) in a reboiler providing at least a product stream (p) and a gaseous stream (g); and'}{'b': 3', '4, 'c2) compressing the gaseous stream (g) providing a cooled compressed gaseous stream (g′);'}{'b': 4', '2, 'd2) feeding the cooled compressed gaseous stream (g′) to the column at the bottom section of the column; and depressurising the contaminant rich liquid stream (l) leaving at the bottom section of the column before ...

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Номер записи: 99
30-10-2014 дата публикации

Apparatus and Method for reducing surface tension in oxygenated water

Номер: US20140318174A1
Автор: Mohr Thomas James
Принадлежит:

Apparatus and method are disclosed for the invention of a non-chemical means to lower the surface tension of a solution of liquid water and gaseous oxygen. An apparatus of the present invention comprises a source of chilled purified water, and gaseous oxygen fed into a positive displacement pump, followed by a cylinder reduced at one end by means of a convergent cone, a section of a smaller diameter cylinder attached to a divergent cone tapering up to another cylinder of a diameter the same or larger than the original cylinder. A coil of refrigeration tubing is wrapped around the smaller center cylinder to control the temperature of the inner cylinder surface. 1. An apparatus for reducing the surface tension of water comprising a pump inlet containing a sparging device like a carbonation stone with micro sized pores , connected to a pressurized oxygen source. a positive displacement pump with a variable speed drive. a cylindrical tube with a convergent cone at the outlet end. a cylinder with a refrigeration coil wrapped round its outer circumference. a divergent cone connected to a cylindrical tube leading to a tank or bottling device.2. The apparatus of claim one wherein the pressure within the first cylinder is produced by the adjustable flow from the pump versus the inside diameter of the second cylinder.3. The apparatus of claim one wherein the water temperature within the second cylinder is lowered below the normal freezing point of water (32F) by means of the refrigeration coil wrapped around the cylinder.4. The apparatus of claim one wherein the increased flow rate through cylinder #4 combined with the increased hydraulic pressure prevents ice from forming on the walls of the cylinder , allowing super cooling of the solution.5. The apparatus of claim one wherein the oxygen dissolved in the water contributes to the depression of the freezing point of the solution.6. The apparatus of claim one wherein the super cooled water from the laminar layer of the flow ...

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Номер записи: 100