EP1134524A3 - Process for producing gaseous nitrogen - Google Patents
Process for producing gaseous nitrogen Download PDFInfo
- Publication number
- EP1134524A3 EP1134524A3 EP01105925A EP01105925A EP1134524A3 EP 1134524 A3 EP1134524 A3 EP 1134524A3 EP 01105925 A EP01105925 A EP 01105925A EP 01105925 A EP01105925 A EP 01105925A EP 1134524 A3 EP1134524 A3 EP 1134524A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- nitrogen
- evaporator
- condenser
- oxygen
- distillation column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract 14
- 229910052757 nitrogen Inorganic materials 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 2
- 238000004821 distillation Methods 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 230000008020 evaporation Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
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
- F25J3/044—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 single pressure main column system only
-
- 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
-
- 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
- F25J3/04321—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 oxygen
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Treating Waste Gases (AREA)
Abstract
Das Verfahren und die Vorrichtung dienen der Gewinnung von gasförmigem Stickstoff durch Tieftemperaturzerlegung von Luft. Das Destilliersäulensystem weist eine Einzelsäule (4) auf. Einsatzluft (1) wird in einem Luftverdichter verdichtet, in einem Hauptwärmetauscher (2) abgekühlt und der Einzelsäule (4) zugeführt (3). Eine stickstoffreiche Fraktion (5, 7, 8) wird aus dem Destilliersäulensystem abgezogen und mindestens zu einem erstem Teil in einem Kreislaufverdichter (9, 1063) verdichtet. Der erste Teil (12, 13) der stickstoffreichen Fraktion (5, 7, 8) wird stromabwärts des Kreislaufverdichters (9) dem Verflüssigungsraum eines Kondensator-Verdampfers (14) zugeführt und dort unter einem Druck kondensiert, der höher als der Betriebsdruck der Einzelsäule (4) ist. Hierbei wird stickstoffreiche Flüssigkeit (15, 16) gebildet. Eine flüssige sauerstoffangereicherte Fraktion (231) aus dem Destilliersäulensystem wird im Verdampfungsraum des Kondensator-Verdampfers (14) mindestens teilweise verdampft. Aus dem im Verdampfungsraum des Kondensator-Verdampfers (14) gebildeten Dampf (232) wird ein erstes sauerstoffangereichertes Gas (234, 533) erzeugt, in die Einzelsäule (4) eingeleitet und dort als aufsteigender Dampf verwendet. Ein zweiter Teil (19, 20, 1064) der stickstoffreichen Fraktion (5, 7, 8) wird zumindest zeitweise als gasförmiges Stickstoffprodukt abgezogen. Ein zweites sauerstoffangereichertes Gas (221, 521) wird aus dem Verdampfungsraum des Kondensator-Verdampfers (14) entnommen, arbeitsleistend entspannt (23) und im Hauptwärmetauscher (2) angewärmt. The method and the device serve to obtain gaseous nitrogen by low-temperature separation of air. The distillation column system has a single column (4). Feed air (1) is compressed in an air compressor, cooled in a main heat exchanger (2) and fed to the individual column (4) (3). A nitrogen-rich fraction (5, 7, 8) is drawn off from the distillation column system and at least a first part is compressed in a circuit compressor (9, 1063). The first part (12, 13) of the nitrogen-rich fraction (5, 7, 8) is fed downstream of the circuit compressor (9) to the liquefaction chamber of a condenser-evaporator (14) and condensed there under a pressure which is higher than the operating pressure of the individual column ( 4) is. This forms nitrogen-rich liquid (15, 16). A liquid oxygen-enriched fraction (231) from the distillation column system is at least partially evaporated in the evaporation space of the condenser-evaporator (14). A first oxygen-enriched gas (234, 533) is generated from the vapor (232) formed in the vaporization chamber of the condenser-evaporator (14), introduced into the individual column (4) and used there as rising vapor. A second part (19, 20, 1064) of the nitrogen-rich fraction (5, 7, 8) is withdrawn at least temporarily as a gaseous nitrogen product. A second oxygen-enriched gas (221, 521) is removed from the evaporation space of the condenser-evaporator (14), expanded to perform work (23) and heated in the main heat exchanger (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10013074 | 2000-03-17 | ||
DE10013074A DE10013074A1 (en) | 2000-03-17 | 2000-03-17 | Process for recovering gaseous nitrogen by the decomposition of air in a distillation column system comprises removing an oxygen-enriched gas from a condenser-vaporizer, relieving the pressure and heating in a heat exchanger |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1134524A2 EP1134524A2 (en) | 2001-09-19 |
EP1134524A3 true EP1134524A3 (en) | 2002-01-09 |
EP1134524B1 EP1134524B1 (en) | 2005-10-05 |
Family
ID=7635135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01105925A Expired - Lifetime EP1134524B1 (en) | 2000-03-17 | 2001-03-09 | Process for producing gaseous nitrogen |
Country Status (4)
Country | Link |
---|---|
US (1) | US6470707B2 (en) |
EP (1) | EP1134524B1 (en) |
AT (1) | ATE306062T1 (en) |
DE (2) | DE10013074A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10157544A1 (en) * | 2001-11-23 | 2003-06-12 | Messer Ags Gmbh | Method and device for producing nitrogen from air |
US7864163B2 (en) | 2006-09-06 | 2011-01-04 | Apple Inc. | Portable electronic device, method, and graphical user interface for displaying structured electronic documents |
DE102007024168A1 (en) * | 2007-05-24 | 2008-11-27 | Linde Ag | Method and apparatus for cryogenic air separation |
DE102007051183A1 (en) * | 2007-10-25 | 2009-04-30 | Linde Aktiengesellschaft | Method for cryogenic air separation |
DE102007051184A1 (en) * | 2007-10-25 | 2009-04-30 | Linde Aktiengesellschaft | Method and apparatus for cryogenic air separation |
EP2236964B1 (en) * | 2009-03-24 | 2019-11-20 | Linde AG | Method and device for low-temperature air separation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1392294A (en) * | 1971-06-28 | 1975-04-30 | British Oxygen Co Ltd | Air separation |
US4400188A (en) * | 1981-10-27 | 1983-08-23 | Air Products And Chemicals, Inc. | Nitrogen generator cycle |
DE19623310A1 (en) * | 1995-11-21 | 1996-11-07 | Linde Ag | Low pressure single column air sepn. plant |
EP0816784A1 (en) * | 1996-06-26 | 1998-01-07 | Crio & Eng S.r.l. | Apparatus for fractionating air, or a mixture of oxygen and nitrogen, for the simultaneous production of nitrogen and oxygen or for the production of nitrogen |
FR2767317A1 (en) * | 1997-08-14 | 1999-02-19 | Air Liquide | PROCESS FOR CONVERTING A FLOW CONTAINING HYDROCARBONS BY PARTIAL OXIDATION |
DE10013073A1 (en) * | 2000-03-17 | 2000-10-19 | Linde Ag | Low temperature separation of air in distillation column system uses integrated heat exchanger system for cooling e.g. air supply by indirect heat exchange during vaporization of first liquid fraction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19543395A1 (en) * | 1995-11-21 | 1997-05-22 | Linde Ag | Double column process and device for the low temperature separation of air |
GB9806293D0 (en) * | 1998-03-24 | 1998-05-20 | Boc Group Plc | Separation of air |
-
2000
- 2000-03-17 DE DE10013074A patent/DE10013074A1/en not_active Withdrawn
-
2001
- 2001-03-09 AT AT01105925T patent/ATE306062T1/en not_active IP Right Cessation
- 2001-03-09 DE DE50107586T patent/DE50107586D1/en not_active Expired - Lifetime
- 2001-03-09 EP EP01105925A patent/EP1134524B1/en not_active Expired - Lifetime
- 2001-03-19 US US09/810,708 patent/US6470707B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1392294A (en) * | 1971-06-28 | 1975-04-30 | British Oxygen Co Ltd | Air separation |
US4400188A (en) * | 1981-10-27 | 1983-08-23 | Air Products And Chemicals, Inc. | Nitrogen generator cycle |
DE19623310A1 (en) * | 1995-11-21 | 1996-11-07 | Linde Ag | Low pressure single column air sepn. plant |
EP0816784A1 (en) * | 1996-06-26 | 1998-01-07 | Crio & Eng S.r.l. | Apparatus for fractionating air, or a mixture of oxygen and nitrogen, for the simultaneous production of nitrogen and oxygen or for the production of nitrogen |
FR2767317A1 (en) * | 1997-08-14 | 1999-02-19 | Air Liquide | PROCESS FOR CONVERTING A FLOW CONTAINING HYDROCARBONS BY PARTIAL OXIDATION |
DE10013073A1 (en) * | 2000-03-17 | 2000-10-19 | Linde Ag | Low temperature separation of air in distillation column system uses integrated heat exchanger system for cooling e.g. air supply by indirect heat exchange during vaporization of first liquid fraction |
Also Published As
Publication number | Publication date |
---|---|
EP1134524B1 (en) | 2005-10-05 |
EP1134524A2 (en) | 2001-09-19 |
US6470707B2 (en) | 2002-10-29 |
ATE306062T1 (en) | 2005-10-15 |
US20010052242A1 (en) | 2001-12-20 |
DE10013074A1 (en) | 2001-09-20 |
DE50107586D1 (en) | 2005-11-10 |
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