ZA893768B - Low-temperature separation of air using high and low pressure air feedstreams - Google Patents
Low-temperature separation of air using high and low pressure air feedstreamsInfo
- Publication number
- ZA893768B ZA893768B ZA893768A ZA893768A ZA893768B ZA 893768 B ZA893768 B ZA 893768B ZA 893768 A ZA893768 A ZA 893768A ZA 893768 A ZA893768 A ZA 893768A ZA 893768 B ZA893768 B ZA 893768B
- Authority
- ZA
- South Africa
- Prior art keywords
- air
- low
- feedstreams
- temperature separation
- low pressure
- Prior art date
Links
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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
- F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
-
- 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
- F25J3/04406—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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
- F25J2205/62—Purifying more than one feed stream in multiple adsorption vessels, e.g. for two feed streams at different pressures
-
- 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
- F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
-
- 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
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/40—Processes or apparatus involving steps for recycling of process streams the recycled stream being 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/12—Particular process parameters like pressure, temperature, ratios
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S62/00—Refrigeration
- Y10S62/939—Partial feed stream expansion, air
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3817244A DE3817244A1 (de) | 1988-05-20 | 1988-05-20 | Verfahren zur tieftemperaturzerlegung von luft |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA893768B true ZA893768B (en) | 1990-02-28 |
Family
ID=6354798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA893768A ZA893768B (en) | 1988-05-20 | 1989-05-19 | Low-temperature separation of air using high and low pressure air feedstreams |
Country Status (6)
Country | Link |
---|---|
US (1) | US4964901A (de) |
EP (1) | EP0342436A3 (de) |
JP (1) | JPH0264385A (de) |
CN (1) | CN1037961A (de) |
DE (1) | DE3817244A1 (de) |
ZA (1) | ZA893768B (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4109945A1 (de) * | 1991-03-26 | 1992-10-01 | Linde Ag | Verfahren zur tieftemperaturzerlegung von luft |
US5197296A (en) * | 1992-01-21 | 1993-03-30 | Praxair Technology, Inc. | Cryogenic rectification system for producing elevated pressure product |
US5837790A (en) | 1994-10-24 | 1998-11-17 | Amcol International Corporation | Precipitation polymerization process for producing an oil adsorbent polymer capable of entrapping solid particles and liquids and the product thereof |
US5571309A (en) * | 1995-07-28 | 1996-11-05 | The Boc Group, Inc. | Adsorption process |
DE19537913A1 (de) * | 1995-10-11 | 1997-04-17 | Linde Ag | Dreifachsäulenverfahren zur Tieftemperaturzerlegung von Luft |
DE19537910A1 (de) * | 1995-10-11 | 1997-04-17 | Linde Ag | Doppelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft |
DE19543395A1 (de) * | 1995-11-21 | 1997-05-22 | Linde Ag | Doppelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft |
US5907959A (en) * | 1998-01-22 | 1999-06-01 | Air Products And Chemicals, Inc. | Air separation process using warm and cold expanders |
DE19908451A1 (de) * | 1999-02-26 | 2000-08-31 | Linde Tech Gase Gmbh | Zweisäulensystem zur Tieftemperaturzerlegung von Luft |
US7149074B2 (en) * | 2001-04-19 | 2006-12-12 | Cabot Corporation | Methods of making a niobium metal oxide |
US6536234B1 (en) | 2002-02-05 | 2003-03-25 | Praxair Technology, Inc. | Three column cryogenic air separation system with dual pressure air feeds |
US7632337B2 (en) * | 2006-06-30 | 2009-12-15 | Praxair Technology, Inc. | Air prepurification for cryogenic air separation |
EP2489968A1 (de) * | 2011-02-17 | 2012-08-22 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
DE102011113671A1 (de) | 2011-09-20 | 2013-03-21 | Linde Ag | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
KR101947112B1 (ko) | 2011-09-20 | 2019-02-12 | 린데 악티엔게젤샤프트 | 정화된 두 개의 부분 공기 스트림을 발생시키기 위한 방법 및 장치 |
DE102011113666A1 (de) | 2011-09-20 | 2013-03-21 | Linde Ag | Verfahren und Vorrichtung zur Erzeugung zweier gereinigter Luftteilströme |
WO2013041229A1 (de) | 2011-09-20 | 2013-03-28 | Linde Aktiengesellschaft | Verfahren und vorrichtung zur tieftemperaturzerlegung von luft |
DE202014002220U1 (de) | 2013-10-31 | 2014-04-14 | Linde Aktiengesellschaft | Vorrichtung zur Tieftemperaturzerlegung von Luft |
FR3090831B1 (fr) | 2018-12-21 | 2022-06-03 | L´Air Liquide Sa Pour L’Etude Et L’Exploitation Des Procedes Georges Claude | Appareil et procédé de séparation d’air par distillation cryogénique |
FR3110685B1 (fr) | 2020-05-20 | 2022-12-23 | Air Liquide | Procédé et appareil de séparation d’air par distillation cryogénique |
WO2022093043A1 (en) * | 2020-10-27 | 2022-05-05 | Fabrum Holdings Limited | Air treatment system and method of treating air |
FR3119884B1 (fr) * | 2021-02-18 | 2022-12-30 | Air Liquide | Procédé de séparation d’air par distillation cryogénique |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2666303A (en) * | 1950-06-08 | 1954-01-19 | British Oxygen Co Ltd | Apparatus for the separation of gas mixtures by liquefaction and rectification |
US2873583A (en) * | 1954-05-04 | 1959-02-17 | Union Carbide Corp | Dual pressure cycle for air separation |
US2846853A (en) * | 1954-06-01 | 1958-08-12 | Union Carbide Corp | High pressure scrubber liquefier in air separation systems |
BE547614A (de) * | 1955-05-31 | |||
DE1117616B (de) * | 1960-10-14 | 1961-11-23 | Linde Eismasch Ag | Verfahren und Einrichtung zum Gewinnen besonders reiner Zerlegungsprodukte in Tieftemperaturgaszerlegungsanlagen |
US3699695A (en) * | 1965-10-29 | 1972-10-24 | Linde Ag | Process of separating air into an oxygen-rich fraction suitable for blast furnace operation |
DE1501723A1 (de) * | 1966-01-13 | 1969-06-26 | Linde Ag | Verfahren und Vorrichtung zur Erzeugung gasfoermigen Hochdrucksauerstoffs bei der Tieftemperaturrektifikation von Luft |
US3760596A (en) * | 1968-10-23 | 1973-09-25 | M Lemberg | Method of liberation of pure nitrogen and oxygen from air |
DE3528374A1 (de) * | 1985-08-07 | 1987-02-12 | Linde Ag | Verfahren und vorrichtung zur erzeugung von stickstoff mit ueberatmosphaerischem druck |
JPH0721378B2 (ja) * | 1985-08-12 | 1995-03-08 | 大同ほくさん株式会社 | 酸素ガス製造装置 |
US4704147A (en) * | 1986-08-20 | 1987-11-03 | Air Products And Chemicals, Inc. | Dual air pressure cycle to produce low purity oxygen |
DE3643359C2 (de) * | 1986-12-18 | 1993-11-18 | Linde Ag | Verfahren und Vorrichtung zur Luftzerlegung durch zweistufige Rektifikation |
-
1988
- 1988-05-20 DE DE3817244A patent/DE3817244A1/de not_active Withdrawn
-
1989
- 1989-05-03 EP EP89108038A patent/EP0342436A3/de not_active Ceased
- 1989-05-18 JP JP1123003A patent/JPH0264385A/ja active Pending
- 1989-05-18 CN CN89103291A patent/CN1037961A/zh not_active Withdrawn
- 1989-05-19 ZA ZA893768A patent/ZA893768B/xx unknown
- 1989-05-19 US US07/354,257 patent/US4964901A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0342436A3 (de) | 1990-01-24 |
DE3817244A1 (de) | 1989-11-23 |
US4964901A (en) | 1990-10-23 |
CN1037961A (zh) | 1989-12-13 |
EP0342436A2 (de) | 1989-11-23 |
JPH0264385A (ja) | 1990-03-05 |
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