EP0606027A1 - Lufttrennungsverfahren und Anlage zur Herstellung von wenigstens ein Druckgasprodukt und von wenigstens eine Flüssigkeit - Google Patents
Lufttrennungsverfahren und Anlage zur Herstellung von wenigstens ein Druckgasprodukt und von wenigstens eine Flüssigkeit Download PDFInfo
- Publication number
- EP0606027A1 EP0606027A1 EP93402907A EP93402907A EP0606027A1 EP 0606027 A1 EP0606027 A1 EP 0606027A1 EP 93402907 A EP93402907 A EP 93402907A EP 93402907 A EP93402907 A EP 93402907A EP 0606027 A1 EP0606027 A1 EP 0606027A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- air
- pressure
- nitrogen
- turbine
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 238000004821 distillation Methods 0.000 title claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 98
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 40
- 238000009434 installation Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 16
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910052786 argon Inorganic materials 0.000 claims abstract description 8
- 238000005057 refrigeration Methods 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 239000000047 product Substances 0.000 claims description 14
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 10
- 239000012263 liquid product Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 229910001882 dioxygen Inorganic materials 0.000 claims description 7
- 238000009834 vaporization Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 5
- 239000006200 vaporizer Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000002040 relaxant effect Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004172 nitrogen cycle Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- QGZKDVFQNNGYKY-NJFSPNSNSA-N nitrogen-16 Chemical compound [16NH3] QGZKDVFQNNGYKY-NJFSPNSNSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
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- 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
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
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- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/04084—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of nitrogen
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- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
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- 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
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
- F25J3/042—Division of the main heat exchange line in consecutive sections having different functions having an intermediate feed connection
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- 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
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
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- 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
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- 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
- F25J3/04357—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 and comprising a gas work expansion loop
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- 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
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- 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
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/0466—Producing crude argon in a crude argon column as a parallel working rectification column or auxiliary column system in a single pressure main column system
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- 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
- F25J2200/76—Refluxing the column with condensed overhead gas being cycled in a quasi-closed loop refrigeration cycle
Definitions
- the present invention relates to a process for producing oxygen and / or nitrogen gas under pressure and at least one liquid product by means of an installation comprising a simple air distillation column provided with a cycle nitrogen refrigeration.
- the invention aims to take advantage of the advantageous properties of simple distillation columns with nitrogen refrigeration cycle (reduced investment, moderate energy consumption, decoupling between product purity and extraction yields) to produce particularly flexible and economical oxygen and / or nitrogen under pressure, in gaseous form, as well as at least one liquid product.
- the main compressor and the nitrogen cycle compressor of this installation can in particular be constituted by a single machine.
- FIGS. 1 and 2 schematically represent, firstly and secondly, embodiments of the installation according to the invention.
- the installation shown in Figure 1 is intended to produce pressurized gaseous oxygen, pressurized nitrogen gas, liquid oxygen, liquid nitrogen and argon. It essentially comprises: a main air compressor 1 provided with a refrigerant 2 with atmospheric air or water; an adsorption purification device 3; a 4-turbine blower assembly 5 having the two wheels wedged on the same shaft, the blower also being provided with a coolant 6 air or water; a heat exchange line 7; a simple air distillation column 9; an impure argon production column 10 coupled to the previous one; a sub-cooler 11; storage 12 of liquid nitrogen and 13 of liquid oxygen under atmospheric pressure; pumps 14 for liquid oxygen and 15 for liquid nitrogen; and a compressor 16 of the refrigeration cycle nitrogen provided with an air or water cooler 17.
- the simple column 9 comprises a tank vaporizer 18, while the column 10 comprises a head condenser 19.
- the installation also includes expansion valves 20 to 24.
- the air compressors 1 and cycle nitrogen 16 are combined in a single rotating machine.
- the incoming air is compressed between 5 and 10 bars at 1, cooled to around room temperature at 2, purified with water and carbon dioxide at 3, and fully boosted at 4 to a high pressure of the order of 6.5 to 13 bars.
- the pressurized air After pre-cooling in the vicinity of the ambient temperature at 6, the pressurized air enters the hot end of the heat exchange line 7 and is cooled to an intermediate temperature, where 60 to 80% of its flow has come out of the exchange line, turbinated at 5, which relaxes them substantially to the pressure of column 9, called low pressure, between 1.3 and 2 bars, then reintroduced into the exchange line, cooled to the end cold thereof, cooled again at 11, and introduced at an intermediate level into column 9 via a pipe 25.
- the non-turbinated fraction of the pressurized air continues to cool and is liquefied in the cold part of the exchange line. It is then sub-cooled in 11. Part of this air is relaxed at the pressure of column 9 at 20 and introduced at an intermediate level thereof, while the rest of this air is expanded at 21 and feeds the head condenser 19 of column 10, to be vaporized there, then is returned to column 9 in gaseous state.
- the installation's nitrogen refrigeration cycle is supplied with practically pure nitrogen produced at the top of column 9, partially reheated at 11 and reheated to room temperature at 7.
- a fraction of this low pressure nitrogen can be recovered by as a product via a pipe 26, and the rest is compressed at a medium pressure, which is the high pressure of the cycle, by the compressor 16, then brought back to the vicinity of the ambient temperature at 17.
- a portion of the medium pressure nitrogen can be recovered as a product via a pipe 27, and the rest is cooled to the cold end of the exchange line up to the vicinity of its dew point, then is condensed in the vaporizer 18 of column 9.
- Part of the condensed nitrogen is pumped at 15 at a high production pressure of the order of 7 to 40 bars, and the liquid nitrogen under this high pressure is vaporized in the heat exchange line by condensation of the pressurized air, warmed to room temperature, then recovered as a product via a line 28.
- the rest of the condensed nitrogen is sub-cooled at 11, then, partially, expanded at 22 and introduced under reflux at the top of the column 9, and, for the rest, expanded to atmospheric pressure at 23 and introduced into the liquid nitrogen storage 12.
- the latter can be supplied with liquid nitrogen taken from the top of the column.
- An impure nitrogen gas flow constituting the waste gas of the installation, is withdrawn from the column at a level between the injections of liquid nitrogen and liquid air, heated in 11 then in 7 to room temperature, and evacuated via a pipe 29.
- Liquid oxygen is also withdrawn from the tank of column 9, pumped at 14 at the desired high production pressure, of the order of 2 to 40 bars, vaporized in the cold part of the heat exchange line. by condensing compressed air, warmed to room temperature, and recovered as a product via a pipe 30.
- Liquid oxygen is also withdrawn from the tank of the column 9 and, after sub-cooling in 11 and expansion to atmospheric pressure in 24, sent to the liquid oxygen storage 13.
- the tank of column 10 is coupled to an intermediate level of column 9 by two supply and return pipes 31, and this column 10 produces impure argon via a pipe 33.
- the installation does not include an auxiliary column 10, so that all of the liquefied air in the heat exchange line is, after sub-cooling in 11 then expansion in 20, injected into the simple column 9.
- the incoming air circuit comprises two blowers 4 and 4A in series, with their respective air or water coolers 6 and 6A, and two air expansion turbines 5 and 5A, coupled respectively to the two blowers .
- the remaining 60 to 70% of the incoming air is boosted in 4 and then in 4A, to a pressure of the order of 6.5 to 13 bars, then introduced at the hot end of the exchange line. They are cooled to a second intermediate temperature T2 lower than T1, a temperature at which 60 to 70% of this flow is taken out of the exchange line and turbinated in 5A, from where they come out substantially at the pressure of the column 9 via line 32.
- the pipes 31, 32 meet in a pipe 33.
- the air conveyed by the latter is again cooled at 11 and then injected into the column, as before, via the pipe 25.
- the 5A non-turbined pressurized air continues to cool in the cold part of the exchange line, where it is liquefied by vaporization of liquid oxygen and high pressure liquid nitrogen as before.
- the presence of the two air turbines 5 and 5A improves the performance of the installation, while the nitrogen turbine 34 increases its production of liquid (liquid oxygen and / or liquid nitrogen).
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- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9300035 | 1993-01-05 | ||
FR9300035A FR2700205B1 (fr) | 1993-01-05 | 1993-01-05 | Procédé et installation de production d'au moins un produit gazeux sous pression et d'au moins un liquide par distillation d'air. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0606027A1 true EP0606027A1 (de) | 1994-07-13 |
EP0606027B1 EP0606027B1 (de) | 1996-10-09 |
Family
ID=9442829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93402907A Revoked EP0606027B1 (de) | 1993-01-05 | 1993-12-01 | Lufttrennungsverfahren und Anlage zur Herstellung von wenigstens einem Druckgasprodukt und von wenigstens einer Flüssigkeit |
Country Status (8)
Country | Link |
---|---|
US (1) | US5428962A (de) |
EP (1) | EP0606027B1 (de) |
JP (1) | JPH06241649A (de) |
CN (1) | CN1093797A (de) |
CA (1) | CA2112831A1 (de) |
DE (1) | DE69305317T2 (de) |
ES (1) | ES2093946T3 (de) |
FR (1) | FR2700205B1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2767317A1 (fr) * | 1997-08-14 | 1999-02-19 | Air Liquide | Procede de conversion d'un debit contenant des hydrocarbures par oxydation partielle |
EP2541175A3 (de) * | 2011-06-30 | 2018-03-21 | General Electric Company | Luftabscheidereinheit und Systeme damit |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5655388A (en) * | 1995-07-27 | 1997-08-12 | Praxair Technology, Inc. | Cryogenic rectification system for producing high pressure gaseous oxygen and liquid product |
GB9515907D0 (en) * | 1995-08-03 | 1995-10-04 | Boc Group Plc | Air separation |
US5689975A (en) * | 1995-10-11 | 1997-11-25 | The Boc Group Plc | Air separation |
GB9618577D0 (en) * | 1996-09-05 | 1996-10-16 | Boc Group Plc | Air separation |
GB9618576D0 (en) * | 1996-09-05 | 1996-10-16 | Boc Group Plc | Air separation |
GB9619718D0 (en) * | 1996-09-20 | 1996-11-06 | Boc Group Plc | Air separation |
GB9619717D0 (en) * | 1996-09-20 | 1996-11-06 | Boc Group Plc | Air separation |
GB9717349D0 (en) * | 1997-08-15 | 1997-10-22 | Boc Group Plc | Air separation plant |
US5987918A (en) * | 1998-03-17 | 1999-11-23 | The Boc Group, Inc. | Method of separating nitrogen from air |
JP4577977B2 (ja) * | 2000-11-14 | 2010-11-10 | 大陽日酸株式会社 | 空気液化分離方法及び装置 |
JP4520668B2 (ja) * | 2001-07-17 | 2010-08-11 | 大陽日酸株式会社 | 空気分離方法および装置 |
JP2004099293A (ja) * | 2002-09-12 | 2004-04-02 | Matsushita Electric Ind Co Ltd | 画像形成装置 |
JP2010536004A (ja) * | 2007-08-10 | 2010-11-25 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | 極低温蒸留によって空気を分離する方法及び装置 |
US20110197630A1 (en) * | 2007-08-10 | 2011-08-18 | L'air Liquide, Societe Anonyme Pour L'etude Et L'e Xploitation Des Procedes Georges Claude | Process and Apparatus for the Separation of Air by Cryogenic Distillation |
DE102009048456A1 (de) * | 2009-09-21 | 2011-03-31 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
DE102011109781A1 (de) | 2010-08-13 | 2012-03-08 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Gewinnung von Drucksauerstoff und Druckstickstoff durch Tieftemperaturzerlegung von Luft |
CN102322727A (zh) * | 2011-09-08 | 2012-01-18 | 罗良宜 | 空气能空气液化分离装置 |
US20220099364A1 (en) * | 2020-09-29 | 2022-03-31 | L'Air Liquide, Société Anonyme pour l'Etude et I'Exploitation des Procédés Georges Claude | Offshore liquefaction process without compression |
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EP0286314A1 (de) * | 1987-04-07 | 1988-10-12 | The BOC Group plc | Lufttrennung |
EP0413631A1 (de) * | 1989-08-18 | 1991-02-20 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Stickstoffgasherstellungsverfahren |
GB2252616A (en) * | 1991-01-15 | 1992-08-12 | Boc Group Plc | Air separation |
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DE3610973A1 (de) * | 1986-04-02 | 1987-10-08 | Linde Ag | Verfahren und vorrichtung zur erzeugung von stickstoff |
-
1993
- 1993-01-05 FR FR9300035A patent/FR2700205B1/fr not_active Expired - Fee Related
- 1993-12-01 DE DE69305317T patent/DE69305317T2/de not_active Revoked
- 1993-12-01 EP EP93402907A patent/EP0606027B1/de not_active Revoked
- 1993-12-01 ES ES93402907T patent/ES2093946T3/es not_active Expired - Lifetime
- 1993-12-16 US US08/169,984 patent/US5428962A/en not_active Expired - Fee Related
- 1993-12-28 JP JP5335585A patent/JPH06241649A/ja active Pending
-
1994
- 1994-01-04 CN CN94101920A patent/CN1093797A/zh active Pending
- 1994-01-05 CA CA002112831A patent/CA2112831A1/fr not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0286314A1 (de) * | 1987-04-07 | 1988-10-12 | The BOC Group plc | Lufttrennung |
EP0413631A1 (de) * | 1989-08-18 | 1991-02-20 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Stickstoffgasherstellungsverfahren |
GB2252616A (en) * | 1991-01-15 | 1992-08-12 | Boc Group Plc | Air separation |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2767317A1 (fr) * | 1997-08-14 | 1999-02-19 | Air Liquide | Procede de conversion d'un debit contenant des hydrocarbures par oxydation partielle |
US6110980A (en) * | 1997-08-14 | 2000-08-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for the conversion of a flow containing hydrocarbons by partial oxidation |
AU739325B2 (en) * | 1997-08-14 | 2001-10-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for the conversion of a flow containing hydrocarbons by partial oxidation |
US6339939B1 (en) | 1997-08-14 | 2002-01-22 | L'air Liquide | Process for the conversion of a flow containing hydrocarbons by partial oxidation |
EP2541175A3 (de) * | 2011-06-30 | 2018-03-21 | General Electric Company | Luftabscheidereinheit und Systeme damit |
Also Published As
Publication number | Publication date |
---|---|
FR2700205A1 (fr) | 1994-07-08 |
CN1093797A (zh) | 1994-10-19 |
FR2700205B1 (fr) | 1995-02-10 |
JPH06241649A (ja) | 1994-09-02 |
CA2112831A1 (fr) | 1994-07-06 |
DE69305317D1 (de) | 1996-11-14 |
ES2093946T3 (es) | 1997-01-01 |
EP0606027B1 (de) | 1996-10-09 |
US5428962A (en) | 1995-07-04 |
DE69305317T2 (de) | 1997-04-03 |
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