SU697783A1 - Gas liquefaction plant - Google Patents

Gas liquefaction plant

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Publication number
SU697783A1
SU697783A1 SU762307346A SU2307346A SU697783A1 SU 697783 A1 SU697783 A1 SU 697783A1 SU 762307346 A SU762307346 A SU 762307346A SU 2307346 A SU2307346 A SU 2307346A SU 697783 A1 SU697783 A1 SU 697783A1
Authority
SU
USSR - Soviet Union
Prior art keywords
gas
compressor
heat exchanger
installation
suction device
Prior art date
Application number
SU762307346A
Other languages
Russian (ru)
Inventor
Александр Валентинович Язик
Original Assignee
Всесоюзное Научно-Производственное Объединение "Союзтурбогаз"
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Priority to SU762307346A priority Critical patent/SU697783A1/en
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Publication of SU697783A1 publication Critical patent/SU697783A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/0035—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0221—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using the cold stored in an external cryogenic component in an open refrigeration loop
    • F25J1/0224—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using the cold stored in an external cryogenic component in an open refrigeration loop in combination with an internal quasi-closed refrigeration loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0235—Heat exchange integration
    • F25J1/0242—Waste heat recovery, e.g. from heat of compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0244—Operation; Control and regulation; Instrumentation
    • F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
    • F25J1/0251—Intermittent or alternating process, so-called batch process, e.g. "peak-shaving"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
    • F25J1/0288—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings using work extraction by mechanical coupling of compression and expansion of the refrigerant, so-called companders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/60—Natural gas or synthetic natural gas [SNG]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
    • F25J2220/64—Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/60—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being hydrocarbons or a mixture of hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/14—External refrigeration with work-producing gas expansion loop

Description

(54) УСТАНОВКА ДЛЯ СЖИЖЕНИЯ ГАЗА(54) INSTALLATION FOR LIQUIDATION OF GAS

1one

Изобретение относитс  к области газовой промышленности.The invention relates to the field of gas industry.

Известны установки дл  получени  сжиженных газов, содержащие компрессорнорасширительное устройство, снабженное электроприводо.м, сепараторы, те 1лообменники предварительного к глубокого охлаждени  1 и 2.Installations for the production of liquefied gases are known, which contain a compressor-expansion unit equipped with an electric drive, separators, those pre-cooling to deep-cooling coils 1 and 2.

Недостатком таких установок  вл етс  их сложность, значительные затрать; энергии, что увеличивает стоимость готового иродукта .The disadvantage of such installations is their complexity, significant overhead; energy, which increases the cost of the finished product.

Наиболее близким технически.-. решением к предлагаемому изобретению  вл етс  установка -дл  сжижени  газов, содержаща  основной компрессор, текпообменники предварительного к глубокого охлаждени  сжижаемого газа, детандер сжижаемого газа, отделитель жидкой фазы и подсасывающее устройство 3|.The closest technically. The solution to the present invention is to install a gas liquefaction plant containing a main compressor, pre-cooling deep liquefied gas exchangers, a liquefied gas expander, a liquid phase separator and a suction device 3 |.

Надежность работы детапдера зависит от точности выбора профил  кулачков распределительного вала и конструктивных материалов. Сложна технологи  их изготовлени . Нужны высокие энергетические затраты по обеснечению установки дополнительными хладагентом и обусповленные наличием электроиривода.The reliability of the component depends on the accuracy of the selection of the camshaft cam profile and structural materials. Difficult to make them. We need high energy costs for supplying the installation with additional refrigerant and due to the presence of electric heating.

Целью изобретени   вл етс  снижение энергетических затрат.The aim of the invention is to reduce energy costs.

. Цель достигаетс  те.м, что установка снабжена детандером природного газа, размещенным на одном валу с компрессором, сенараторо.м и емкостью дл  храпени  газовых гидратов, снабженную размен1енпыми в ней теплообменником расщиренного природного газа, тенлообменни.ком-газификатором пр мого потока сжижаемого газа и теплообменником-охладителем обратного потока сжижаемого газа.. The goal is achieved by the fact that the installation is equipped with a natural gas expander placed on the same shaft with a compressor, senatorto.m and gas hydrate storage capacity, equipped with expanded natural gas exchangers, tenloexchange.com-gasifier of a direct flow of liquefied gas and heat exchanger-cooler of the liquefied gas return flow.

Устройство дл  04iicTKii газа ;i регенератор , установлены перед основным KOMiipeccoром . Установка и.меет также допол1.ительный компрессор, установленный между топлообMeHHiiKOM глубокого охлаждени  и TJCHOBным компрессором. Подсасывающее устройство размеплено между устройством дл  очистки и регенератором.The device for 04iicTKii gas; i regenerator installed in front of the main KOMiipecsoram. The installation also has an additional compressor installed between the deep cooling TopMeHHIKOM and the TJCHOB compressor. A suction device is spaced between the cleaning device and the regenerator.

Установка дл  сжижени  газа содержит основной компрессор 1, теплообменники 2 и 3 предварительного и глубокого охлаждени  сжижаемого газа, детандер 4 сжилчаемогоThe gas liquefaction plant contains the main compressor 1, heat exchangers 2 and 3 of preliminary and deep cooling of the liquefied gas, the expander 4 is compressed

газа, отделитель 5 жидкой фазы и подсасывающее устройство 6, которое размещено между основным к дополнительным компрессором , а также - между устройством дл  очистки и регенератором.gas, a liquid phase separator 5 and a suction device 6, which is placed between the main compressor and the additional compressor, as well as between the cleaning device and the regenerator.

Установка снабжена также детандером 7 природного газа, размещенным на одном валу с дополнительным компрессором 8, сепаратором 9 и емкостью 10 дл  хранени  газовых гидратов.The plant is also equipped with a natural gas expander 7 placed on the same shaft with an additional compressor 8, a separator 9 and a tank 10 for storing gas hydrates.

Емкость 10 дл  хранени  газовых гидратов снабжена размещенными в ней теплообменником 11 расширенного природного газа, теплообменником-газификатором 12 пр мого потока сжижаемого газа, теплообменником-охладителем 13 обратного потока сжижаемого газа. Перед основным компрессором 1 установлены устройство дл  очистки и регенератор (на чертеже не показаны).The storage tank 10 for storing gas hydrates is provided with expanded natural gas heat exchanger 11 housed therein, a forward liquefied gas flow heat exchanger-gasifier 12, heat exchanger-cooler 13 of a reverse liquefied gas flow. In front of the main compressor 1, a cleaning device and a regenerator are installed (not shown in the drawing).

Природный газ из магистрали поступает в детандер 7 природного газа, расщир етс , охлажда сь от -70 . до -90°С. При этом в сепараторе 9 из него отдел ютс  жидкие углеводороды и газовые гидраты, которые попадают в емкость 10 дл  хранени  газовых гидратов. Из емкости 10 жидкие углеводороды и газовые гидраты могут быть отпущены потребителю в жидком виде дл  сжигани  или переработки.The natural gas from the line enters the natural gas expander 7, is expanded, cooled from -70. to -90 ° C. In this case, in the separator 9, liquid hydrocarbons and gas hydrates are separated from it, which fall into the tank 10 for storing gas hydrates. From tank 10, liquid hydrocarbons and gas hydrates can be dispensed to a consumer in liquid form for incineration or processing.

Расщиривщийс  природный газ, освобожденный от гидратов и жидких углеводородов из сепаратора 9, поступает в теплообменник 11, размещенный в емкости 10, дл  поддержани  в ней температуры -50-80°С, а затем в теплообменник 3 предварительного охлаждени Сжижаемого газа, после чего поступает в распределительную сеть потребителю.The expanding natural gas, freed from hydrates and liquid hydrocarbons from the separator 9, enters the heat exchanger 11 placed in the tank 10 to maintain a temperature of -50-80 ° C in it, and then into the pre-cooling heat exchanger 3 Liquefied gas, after which it enters distribution network to the consumer.

Сжижаемый газ посредством подсасывающего устройства 6 попадает в дополнительный компрессор 8, размещенный на одном валу с детандером 7 природного газа, компримируетс  до нужного давлени  и поступает в теплообменник 2 предварительного охлаждени . В нем охлаждаетс  противотоком расщиривщегос  охлажденного природного газа и далее поступает в теплообменник 3 дл  глубокого охлаждени  и в детандер 4 сжижаемого газа, где при расщирении часть газа отдел етс  в жидкой фазе в отделителе 5. Несконденсировавша с  часть газа из отделител  5 поступает в обратную циркул цию в теплообменник 3 глубокого охлаждени , в котором обратным потоком доохлаждаетс  сжижаемый газ, а затем поступает в теплообменник 13, обеспечива  наибольшее выделение жидких углеводородов, и в дополнительный компрессор 8, где смешиваетс  с добавленным в цикл сжижаемым газом. Так как растет потребление природного газа в сети, что выражаетс  в падении давлени  в ней, то возрастает естественна The liquefied gas through the suction device 6 enters the additional compressor 8 placed on the same shaft with the natural gas expander 7, compressed to the required pressure and supplied to the pre-cooling heat exchanger 2. It is cooled by countercurrent of the expanding cooled natural gas and then it enters the heat exchanger 3 for deep cooling and into the expander 4 of liquefied gas, where during expansion a part of the gas is separated in the liquid phase in the separator 5. The non-condensed part of the gas from the separator 5 enters the reverse circulation to a deep-cooling heat exchanger 3, in which a liquefiable gas is cooled by a reverse flow, and then enters the heat exchanger 13, providing the greatest release of liquid hydrocarbons, and to an additional compressor 8, de blended with the addition cycle liquefiable gas. As the consumption of natural gas in the network increases, which is expressed in the pressure drop in it, the natural gas increases.

регазификаци  по мере последовательного сжижени  расхода охладителей через теплообменники 11 и 13, а затем и полного их выключени .regasification as the flow rate of the coolers is gradually liquefied through heat exchangers 11 and 13, and then completely shut down.

При дальнейщем росте расхода в сетиWith further growth in network consumption

включаетс  теплообменник-газификатор 12 обогреваемый необходимым количеством компримируемого сжижаемого газа, нагревающегос  при этом до +200-300°С, а жидкие углеводороды и гидраты быстро газифицируютс  в потоке нагретого газа и по трубопроводу поступают в сеть к потребителю .The heat exchanger-gasifier 12 is turned on, heated by the required amount of compressed liquefied gas, which heats up to + 200-300 ° C, and liquid hydrocarbons and hydrates are quickly gasified in the heated gas flow and are fed to the consumer through the pipeline.

Изобретение существенно уменьшает энергозатраты и эксплуатационные расходы на процесс сжижени .The invention significantly reduces energy costs and operating costs for the liquefaction process.

Claims (5)

1.Установка дл  сжижени  газа, включающа  в себ  основной компрессор, теплообменники предварительного и глубокого охлаждени  сжижаемого газа, детандер сжижаемого газа, отделитель жидкой фазы и подсасывающее устройство, отличающа с  тем, что, с целью сжижени  энергетических1. An installation for liquefying gas, including a main compressor, heat exchangers for preliminary and deep cooling of liquefied gas, a liquefied gas expander, a liquid phase separator and a suction device, characterized in that, in order to liquefy the energy 5 затрат, она снабжена детандером природного газа, размещенным на одном валу с компрессором , сепаратором и емкостью дл  хранени  газовых гидратов, снабженную размещенными в ней теплообменником расщиg ренного природного газа, теплообменникомгазификатором пр мого потока сжижаемого газа и теплообменником-охладителем обратного потока сжижаемого газа.5 costs, it is provided with a natural gas expander placed on the same shaft with a compressor, a separator and a storage tank for gas hydrates, equipped with an expanded natural gas heat exchanger, a heat exchange gas exchange exchanger, and a liquefied gas return heat exchanger-cooler. 2.Установка по п. 1, отличающа с  тем, что она снабжена любым известным устройством дл  очистки газа и регенератором, установленным перед основным компрессором .2. Installation under item 1, characterized in that it is equipped with any known gas cleaning device and a regenerator installed in front of the main compressor. 3.Установка по п. 1, отличающа с  тем, что она снабжена дополнительным компресд сором, установленным между теплообменником глубокого охлаждени  и основным компрессором .3. Installation according to claim 1, characterized in that it is provided with an additional compressor installed between the deep-cooling heat exchanger and the main compressor. 4.Установка по п. 2, отличающа с  тем, что подсасывающее устройство размещено между устройством дл  очистки и регене5 ратором.4. The installation as claimed in claim 2, wherein the suction device is placed between the cleaning device and the regenerator. 5. Установка по п. 3, отличающа с  тем, что подсасывающее устройство размещено между основным и дополнительным компрессорами . gИсточники информации,5. Installation according to claim 3, characterized in that the suction device is located between the main and additional compressors. g Sources of information прин тые во внимание при экспертизеtaken into account in the examination 1.Патент США № 3596473, KJI. 62-28, 1968.1. US Patent No. 3596473, KJI. 62-28, 1968. 2.Патент А 1гдии №931371, кл. 8(2-)F3, 1961.2. Patent of A 1Gd No. 931371, cl. 8 (2-) F3, 1961. 3. Авторское свидетельство СССР3. USSR author's certificate № 386220, кл. F 25 J 1/00, 1971.No. 386220, cl. F 25 J 1/00, 1971. fl/fl /
SU762307346A 1976-01-04 1976-01-04 Gas liquefaction plant SU697783A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2536755C1 (en) * 2013-07-16 2014-12-27 Общество с ограниченной ответственностью "Газпром трансгаз Екатеринбург" Compressed natural gas filling method
RU2730778C1 (en) * 2019-10-01 2020-08-25 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") Method for liquefied natural gas production from deposits with abnormally high thermobaric conditions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2536755C1 (en) * 2013-07-16 2014-12-27 Общество с ограниченной ответственностью "Газпром трансгаз Екатеринбург" Compressed natural gas filling method
RU2730778C1 (en) * 2019-10-01 2020-08-25 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") Method for liquefied natural gas production from deposits with abnormally high thermobaric conditions

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