SU890041A1 - Air separation unit - Google Patents

Air separation unit Download PDF

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Publication number
SU890041A1
SU890041A1 SU782701375A SU2701375A SU890041A1 SU 890041 A1 SU890041 A1 SU 890041A1 SU 782701375 A SU782701375 A SU 782701375A SU 2701375 A SU2701375 A SU 2701375A SU 890041 A1 SU890041 A1 SU 890041A1
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USSR - Soviet Union
Prior art keywords
neon
helium
air separation
concentration unit
mixture
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Application number
SU782701375A
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Russian (ru)
Inventor
Юрий Валентинович Светлов
Иван Александрович Давыдов
Владимир Васильевич Кривохижин
Валерий Васильевич Савостьянов
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Предприятие П/Я А-3605
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Publication of SU890041A1 publication Critical patent/SU890041A1/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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/04351—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04624—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using integrated mass and heat exchange, so-called non-adiabatic rectification, e.g. dephlegmator, reflux exchanger
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/32—Processes or apparatus using separation by rectification using a side column fed by a stream from the high pressure column
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/30—Helium
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/32—Neon
    • 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
    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/20—Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Description

II

Изобретение относитс  к криогенной технике в частности к установкам разделени  воздуха, и может бнтьиспрльзорано.на предпри ти х металлургической промьшшёщюсти.The invention relates to a cryogenic technique, in particular, to an air separation unit, and can be monitored in the metallurgical industry.

Известны установки разделени  воздуха содержащие нижнюю и верхнюю рект1 кационные колонны де егматоры а также блоки кон 1ентриро - . вани  неоно-гелиевой смеси р.Air separation plants are known to contain lower and upper rectifier columns, de egmators, as well as blocks of conentriro. vanilla neon-helium mixture p.

Наиболее близкой к предлагаемой по технической сущности  вл етс  установка разделеии  воздуха, содер;Жаща  нижнюю и верзилою ректи оса ционные колоншл конденсаторы и дё|флегматор дл  концентрировани  неоногёпиевой смеси . The closest to the proposed technical entity is the installation of the separation of air, containing the leaning and bristling rection columns of capacitors and dephlegmator for concentrating the neonogepium mixture.

Недостаток такой установки заклю чаетс  в том, что в ней мспкно полу- чать неоно-гелиевую смесь низкой концентрации - до 40Z содержани  в ней неона гели .The disadvantage of such an installation is that it is necessary to obtain a neon-helium mixture of low concentration — up to 40 Z — the content of neon gels in it.

Целью изобретени   вл етс  получение технически чистой неонотелневой смеси.The aim of the invention is to obtain a technically pure neontelone mixture.

Поставленна  цель достигаетс  тем что в установке разделений воздуха блок концентрировани  неоно-гепиевой смеси соединен на входе и выходе с дефлегматором. При зтом блок концентрировани  состоит из последовательно соединенных рекуперативного тепло10 обменника мембранного компрессора и куба конденсатора.The goal is achieved by the fact that, in an air separation unit, a neon-gepi mixture concentration unit is connected at the inlet and outlet with a reflux condenser. At the same time, the concentration unit consists of a series-connected recuperative heat10 of the membrane compressor exchanger and the condenser bottom.

На чертеже изображена схема установки .The drawing shows the installation diagram.

ISIS

Установка включает теплообменник 1, колонну 2f группу конденсаторов 3 сборник 4 жидкого азота колонну 5 концевой конденсатор 6 дефлегматор 7, блок 8 концентрировани  рекуперативный теплообменник 9 мембранный компрессор 10, конденсатор 11.The installation includes a heat exchanger 1, a column 2f group of condensers 3, a collection 4 of liquid nitrogen, a column 5, an end condenser 6 reflux condenser 7, a concentration unit 8, a recuperative heat exchanger 9, a membrane compressor 10, a condenser 11.

Работа установки осуществл етс  следующим образом.The operation of the installation is carried out as follows.

Воздух, поступающий по трубопроводу 12, охлащаетс  и очищаетс  от примесей в теплообменнике 1 и поступает в колонну 2. Из колонны 2 азотно-неоно-гелиева  смесь по трубопроводам 13 поступает на ковденсацию в первую группу конденсаторов 3, в которых частично конденсируетс . Вследствие низкой концентрации неона и гели  в парах азота содержание этих компонентов за счет растворимости в жидкости незначительно. Жидкость из конденсаторов 3 по трубопроводу 14 сливаетс  в сборник 4 жидкого азота, из которого часть ее отбираетс  в ввде флегмы и по трубопроводу 15 направл етс  на орошение колонны 5. Остаток паров азота, обогащенной неоном и гелием, поступает по трубопроводу 16 в канце™ 3oi| конденсатор 6, где конденсируетс  почти полностью. Относительна небольша  часть газовой смеси, обогащенной до 3-5% неоном и гелием, поступает . по трубопроводу 17 в дефлегматор 7 , а жидкость с растворенным в ней неоном и гелием по трубопроводу 18 направл етс  дл  орошени  нижней колонны 2, где из жидкости отпариваетс  неон и гелий. Из дефлегматора 7 газова  смесь, обогащенна  до 40-45% неоном и гелием, отбираетс  по трубопроводу 19 в блок 8 концен .трировани , где подогреваетс  в рекуперативном теплообменнике 9, сжимаетс  в мембранном компрессоре 10. После сжати  смесь охлалздаетс  в теплообменнике 9 и направл етс  в конденсатор 11. Жидкость сThe air entering through the pipeline 12 is cooled and cleaned of impurities in the heat exchanger 1 and enters the column 2. From the column 2, the nitrogen-neon-helium mixture through the pipelines 13 enters the condensation in the first group of condensers 3, in which it partially condenses. Due to the low concentration of neon and gels in nitrogen vapors, the content of these components due to solubility in the liquid is insignificant. Liquid from condensers 3 is piped through conduit 14 into liquid nitrogen collector 4, from which part of it is collected in the in-line reflux and sent to conduit 15 to reflux the column 5. The residue of nitrogen enriched with neon and helium is fed through conduit 16 in the channel ™ 3oi | condenser 6, where almost completely condenses. Relatively small part of the gas mixture, enriched to 3-5% by neon and helium, comes. through pipeline 17 to reflux condenser 7, and the liquid with neon and helium dissolved in it through pipeline 18 is sent to irrigate the lower column 2, where neon and helium are stripped from the liquid. From the reflux condenser 7, the gas mixture, enriched to 40-45% by neon and helium, is taken through line 19 to block 8. Concentrations, where it is heated in a regenerative heat exchanger 9, compressed in a membrane compressor 10. After compression, the mixture is cooled in a heat exchanger 9 and sent to condenser 11. Liquid from

«растворенными в ней неоном и гелием по трубопроводу 20 направл етс  на дросселирование и отпариваиие в дефлегматор 7. Неоно-геаиева  смесь высокой концентрации (до 98%) выводитс  по трубопроводу 21 через теплообменник 1 к потребителю.The neon and helium dissolved in it through conduit 20 is directed to throttling and stripping to a reflux condenser 7. High-concentration neon-geaia mixture (up to 98%) is withdrawn via conduit 21 through heat exchanger 1 to the consumer.

Claims (2)

1.Установка разделени  воздуха,1. Installation of air separation содержаща  нижнюю реактификационную колонну, верхнюю ректификационнуюcontaining the lower distillation column, the upper distillation колонну с дефлегматором неоно-гелиевой смеси и блок концентрировани  неоно-гелиевой смеси, отличающа с  тем, что, с целью получени  технически чистой неоно-гелиевой смеси, блок концентрировани  неоно-гелиевой смеси соединен на входе и выходе с дефлегматором.a neon-helium mixture reflux column and a neon-helium mixture concentration unit, characterized in that, in order to obtain a technically clean neon-helium mixture, the neon helium concentration unit is connected at the inlet and outlet with a reflux condenser. 2.Установка по п. 1, отличающа с  тем, что блок концентрировани -- состоит из последовательно соединенных рекуперативного , теплообменника, мембранного компрессора и куба конденсатора.2. Installation under item 1, characterized in that the concentration unit consists of a series-connected recuperative heat exchanger, a membrane compressor and a condenser bottom. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination Г. Авторское свидетельство СССР № 444472, кл. F 25 J 3/04, 1975.G. USSR Copyright Certificate № 444472, cl. F 25 J 3/04, 1975. 2. Воздухоразделительные установки и оборудование дл  хранени , транспортировки и газификации низкотемпературных жидкостей. Каталог.М., ЦИНТИХимнефтемаш, 1970. с. 22.2. Air separation plants and equipment for storage, transportation and gasification of low-temperature liquids. Catalog. M., TsINTIHimneftemash, 1970. p. 22
SU782701375A 1978-12-25 1978-12-25 Air separation unit SU890041A1 (en)

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SU782701375A SU890041A1 (en) 1978-12-25 1978-12-25 Air separation unit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062515A (en) * 2009-11-13 2011-05-18 林德股份公司 Method and device for generating a helium-neon concentrate from air

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062515A (en) * 2009-11-13 2011-05-18 林德股份公司 Method and device for generating a helium-neon concentrate from air
CN102062515B (en) * 2009-11-13 2014-11-26 林德股份公司 Method and device for generating a helium-neon concentrate from air

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