EP1082577A1 - Verfahren zur xenongewinnung - Google Patents
Verfahren zur xenongewinnungInfo
- Publication number
- EP1082577A1 EP1082577A1 EP99922180A EP99922180A EP1082577A1 EP 1082577 A1 EP1082577 A1 EP 1082577A1 EP 99922180 A EP99922180 A EP 99922180A EP 99922180 A EP99922180 A EP 99922180A EP 1082577 A1 EP1082577 A1 EP 1082577A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- lox
- fed
- lza
- inert gas
- 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
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
- F25J3/04745—Krypton and/or Xenon
- F25J3/04751—Producing pure krypton and/or xenon recovered from a crude krypton/xenon mixture
-
- 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
- F25J3/0228—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 characterised by the separated product stream
- F25J3/028—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 characterised by the separated product stream separation of noble gases
-
- 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
- F25J3/04745—Krypton and/or Xenon
-
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/34—Processes or apparatus using separation by rectification using a side column fed by a stream from the 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
-
- 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
- F25J2210/42—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
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/50—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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/34—Krypton
-
- 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
- F25J2215/36—Xenon
-
- 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
- F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
-
- 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
- Y10S62/923—Inert gas
- Y10S62/925—Xenon or krypton
Definitions
- the invention relates to a process for the production of xenon and possibly also krypton from a liquid oxygen (LOX) use, as occurs in a cryogenic air separation plant (LZA) during rectification of the air, usually as a bottom product of a low-pressure column, namely with xenon (Xe ), Krypton (Kr) and hydrocarbons (C x H y ) in low concentration and about 99 mol% oxygen (0 2 ), the LOX feed being fed to a 1 column, the oxygen from the LOX feed being largely stripped off with an inert gas and is obtained in the overhead gas, while the inert gas with a little 0 2 and almost the total amount of C x H y , Kr and Xe is drawn off in liquid form from the bottom of the 1 column
- LZA cryogenic air separation plant
- a continuous operation can only be made possible by alternately loading and regenerating at least two adsorbers, the process stream with the C x H y having to be switched at intervals to the respectively regenerated adsorber
- the object of the invention is therefore to demonstrate a method which is simple and can be operated without switching the process stream This object is achieved according to the invention by a method having the features of claim 1.
- Embodiments of the invention are the subject of subclaims.
- the liquid discharge is fed to a second column without prior catalytic and / or adsorptive removal of C x H y , a Kr fraction is obtained as overhead gas from the second column and a Xe fraction from the bottom of the second Column is withdrawn.
- the Kr fraction contains all constituents which have a lower boiling point than Xe, in particular methane. If this Kr fraction is discarded and only the Xe fraction smaller by an order of magnitude is further processed to obtain the economically more important xenon, the process engineering effort is considerably restricted. In the case of smaller plants, this justifies the waiver of a possible extraction of the Kr from the Kr fraction.
- the Kr can also be obtained in a simple manner as an additional product.
- the inert gas can be fed in above the bottom of the 1st column.
- the inert gas can be taken from a LZA on site and mainly contain nitrogen and / or argon.
- the inert gas contains argon, the argon can be recovered from the overhead gas of the 1st column in the LZA.
- the LOX insert can be taken from an existing LZA. It is less convenient to transport the LOX insert to extract the Xe.
- the LOX insert can be fed in at the top or a few trays below the top of the 1st column. If necessary, the pressure of the LOX insert can be adapted to a pressure at the top of the 1 column by means of a suitable device. An optimum operating pressure of the 1 column can be set as a function of the inert gas used for stripping
- the bottom of the 1 column can be heated by indirect heat exchange.
- an electric heater or a process stream from the LZA can be used on site. With an electric heater, the process is independent of the operation of a LZA, otherwise electricity costs are saved
- the head of the 1 column can be cooled cheaply by direct or indirect heat exchange
- liquid nitrogen can be used to cool the top of the 1 column. Liquid nitrogen is also easy to provide at locations without LZA
- the liquid discharge from the 1 column can advantageously be fed in some trays below a top condenser of the 2 column.
- the pressure increase can be useful in the case of unfavorable hydrocarbon additions to avoid solids failure
- the Xe fraction from the bottom of the 2 column can be fed in a middle part between the top and bottom of a 3 column and a pure Xe product can be drawn off at the top of the 3 column.
- this product can be at least partially marketed directly or possibly at a different location, a pure Xe extraction
- the Kr fraction can be fed from the top of the 2 column into a middle part between the top and bottom of a 4 column and a pure Kr product can be drawn off from the bottom of the 4 column.
- the pure Kr product can be analogous to the pure Xe product directly marketed with 99.999 mol% krypton and / or supplied with ultrapure Kr
- the top of the 2 and / or 3 and / or 4 column can each be cooled with a suitable fluid, for example from the LZA on site, and the bottom of the 2 and / or 3 and / or 4 column can each be heated by indirect heat exchange be heated with a fluid or with an electric heater
- the method according to the invention can be used in a device for Xe and / or Kr extraction at an LZA
- the device for extracting Xe and / or Kr can be arranged in a transportable container. On the one hand, this enables particularly simple assembly on an LZA. On the other hand, such a device can also be used as a mobile device for several LZA. Intermediate storage of the use from the LZA and processing in the mobile device if necessary. This saves extensive transports of LOX insert, which only contains about 400 mol ppm of the valuable xenon
- the figure shows a purely rectific Xe recovery according to the invention without catalytic or adsorptive C x H y removal
- the Xe production is shown schematically in the figure as a schematic diagram.
- a LOX insert 1 is placed at the top of a 1 column 2.
- This 1 column essentially serves to exchange oxygen with an inert gas.
- gaseous nitrogen is used as the inert gas 3 taken from an adjacent LZA, not shown in the figure, and fed in above the bottom of this 1 column 2.
- the bottom of the 1 column 2 can be heated (not shown in the figure).
- the working pressure of the 1 column 2 depends primarily on the inert gas used.
- the pressure of the LOX insert 1 is adapted to this working pressure.
- a residual gas stream 4 at the top of the 1 column 2 contains nitrogen, oxygen and traces of methane and krypton, while a bottom liquid withdrawn 5 mainly contains nitrogen, little oxygen ( ⁇ 5 mol%), C x H y , Kr and Xe.
- the low oxygen content becomes achieved in that a molar ratio of gaseous nitrogen 3 to LOX insert 1 is not less than about 5.0
- the bottom liquid 5 of the 1 column 2 is fed to a 2 column 6 a few trays below the top condenser. To avoid solid precipitation, the pressure in the stream 5 can be increased to an optimal operating pressure of the column 6 if necessary.
- a Kr fraction 7 is added to the 2 column 6 easily volatile parts of stream 5 and a Xe fraction 8 with slightly volatile parts obtained from stream 5
- the Kr fraction 7 is taken in gaseous form from the top and the Xe fraction 8 is taken from the bottom of the 2 column 6 in liquid form
- the Xe fraction 8 from the 2 column 6 is fed into the middle part of a 3 column 9 and a residual gas stream 10, which contains difficultly volatile hydrocarbons from the Xe fraction 8, is drawn off in liquid form from the bottom of the 3 column 9.
- a pure Xe product 1 1 is obtained in liquid form at the top of the 3 column 9
- the Kr fraction 7 from the 2 column 6 is either regarded as a residual gas or, as shown in the figure, fed into the middle part of a 4 column 12 and a residual gas stream 13 with mainly nitrogen and residual oxygen and methane is led out in gaseous form at the top of the 4 column 12 and a pure Kr product 14 is withdrawn in liquid form at the bottom of the 4 column 12
- top condensers 15 of the 2, 3 and 4 columns 6, 9, 12 are cooled with an evaporating liquid which is suitable with regard to their boiling point or with a suitable single-phase cold stream, optionally from an adjacent LZA
- the heaters 16 of the 2, 3 and 4 columns 6, 9, 12 are carried out by indirect heat exchange with the aid of an electric heater or a suitable fluid, if appropriate from an adjacent LZA
- the bottom of the 1 column 2 is heated by indirect heat exchange with an electric heater or a suitable fluid 17 and the top of the 1 column 2 is cooled by direct or indirect heat exchange (the heating with fluid is shown in dashed lines in the figure 7 and the direct heat exchange for the head cooling of the 1 column 2 with the aid of liquid nitrogen 18) example 1
- a numerical example from a model calculation for an embodiment of the method according to the invention without head cooling of the first column is shown in Table 1.
- the purity of the pure Xe product obtained is 98.8 mol% of Xe and that of the pure Kr product is 98.1 mol%.
- the Xe yield is 97.0% and the Kr yield is 67.0% in each case based on the content in the LOX feed stream 1.
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)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Medicines Containing Plant Substances (AREA)
- Extraction Or Liquid Replacement (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823526 | 1998-05-26 | ||
DE19823526A DE19823526C1 (de) | 1998-05-26 | 1998-05-26 | Verfahren zur Xenongewinnung |
PCT/EP1999/003079 WO1999061853A1 (de) | 1998-05-26 | 1999-05-05 | Verfahren zur xenongewinnung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1082577A1 true EP1082577A1 (de) | 2001-03-14 |
EP1082577B1 EP1082577B1 (de) | 2002-03-27 |
Family
ID=7868981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99922180A Expired - Lifetime EP1082577B1 (de) | 1998-05-26 | 1999-05-05 | Verfahren zur xenongewinnung |
Country Status (11)
Country | Link |
---|---|
US (1) | US6351970B1 (de) |
EP (1) | EP1082577B1 (de) |
CN (1) | CN1136427C (de) |
AT (1) | ATE215211T1 (de) |
DE (2) | DE19823526C1 (de) |
NO (1) | NO20005955D0 (de) |
PL (1) | PL344242A1 (de) |
SI (1) | SI20486A (de) |
TW (1) | TW453975B (de) |
WO (1) | WO1999061853A1 (de) |
ZA (1) | ZA200007750B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012107688A3 (fr) * | 2011-02-09 | 2014-07-24 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et appareil de séparation cryogénique d'un débit riche en méthane |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6735980B2 (en) * | 2002-01-04 | 2004-05-18 | Air Products And Chemicals, Inc. | Recovery of krypton and xenon |
RU2213609C1 (ru) * | 2002-11-15 | 2003-10-10 | Савинов Михаил Юрьевич | Способ разделения криптоно-ксенонового концентрата и устройство для его осуществления |
US8123606B2 (en) * | 2004-07-30 | 2012-02-28 | Igt | Stud bingo |
WO2006068531A1 (fr) * | 2004-12-17 | 2006-06-29 | Mikhail Yurievich Savinov | Procede de purification et de division d'un melange a composants multiples, et dispositif permettant sa mise en oeuvre |
RU2300717C1 (ru) * | 2005-12-29 | 2007-06-10 | Михаил Юрьевич Савинов | Способ очистки и разделения криптоно-ксеноновой смеси ректификацией и устройство для его осуществления |
DE102009014556A1 (de) | 2009-03-24 | 2010-09-30 | Linde Aktiengesellschaft | Verfahren zur Beheizung einer Trennkolonne |
CN101634515B (zh) * | 2009-08-13 | 2012-09-05 | 上海启元科技发展有限公司 | 一种纯氪和纯氙的全精馏提取方法 |
CN101634514B (zh) * | 2009-08-13 | 2012-01-25 | 上海启元科技发展有限公司 | 全精馏制备纯氪和纯氙的方法 |
EP2312248A1 (de) | 2009-10-07 | 2011-04-20 | Linde Aktiengesellschaft | Verfahren und Vorrichtung Gewinnung von Drucksauerstoff und Krypton/Xenon |
CN101898752B (zh) * | 2009-11-12 | 2012-07-04 | 上海启元科技发展有限公司 | 一种从浓氪氙液中精制纯氪和纯氙的方法 |
CN101723338B (zh) * | 2009-11-12 | 2013-03-13 | 上海启元科技发展有限公司 | 一种从液氧中提取氪氙的方法 |
EP2390603A1 (de) * | 2010-05-27 | 2011-11-30 | Linde AG | Verfahren und Vorrichtung zur Trennung eines Stoffgemischs durch Destillation |
US8978413B2 (en) * | 2010-06-09 | 2015-03-17 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Rare gases recovery process for triple column oxygen plant |
CN102538393A (zh) * | 2011-07-26 | 2012-07-04 | 上海启元空分技术发展股份有限公司 | 含co2和甲烷的氪氙浓缩物的分离方法 |
DE102011111630A1 (de) | 2011-08-25 | 2013-02-28 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Tieftemperatur-Zerlegung eines Fluidgemischs |
RU2520216C1 (ru) * | 2012-12-21 | 2014-06-20 | Михаил Юрьевич Савинов | Способ получения из многокомпонентного раствора криптоноксеноновой смеси и растворителя особой чистоты и устройство его осуществления |
CN108031138A (zh) * | 2017-12-14 | 2018-05-15 | 浙江新锐空分设备有限公司 | 一种氪氙浓缩塔底部蒸发热源系统 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1667639A1 (de) | 1968-03-15 | 1971-07-08 | Messer Griesheim Gmbh | Verfahren zum Gewinnen eines Krypton-Xenon-Gemisches aus Luft |
DE2055099A1 (de) * | 1970-11-10 | 1972-05-18 | Messer Griesheim Gmbh, 6000 Frankfurt | Verfahren zur Anreicherung von Krypton und Xenon in Luftzerlegungsanlagen |
FR2280954B1 (fr) | 1974-07-31 | 1977-01-07 | Commissariat Energie Atomique | Procede de traitement de melanges d'air et de gaz rares au moins partiellement radio-actifs |
US4401448A (en) * | 1982-05-24 | 1983-08-30 | Union Carbide Corporation | Air separation process for the production of krypton and xenon |
US4647299A (en) | 1984-08-16 | 1987-03-03 | Union Carbide Corporation | Process to produce an oxygen-free krypton-xenon concentrate |
US5067976A (en) * | 1991-02-05 | 1991-11-26 | Air Products And Chemicals, Inc. | Cryogenic process for the production of an oxygen-free and methane-free, krypton/xenon product |
-
1998
- 1998-05-26 DE DE19823526A patent/DE19823526C1/de not_active Expired - Fee Related
-
1999
- 1999-05-05 EP EP99922180A patent/EP1082577B1/de not_active Expired - Lifetime
- 1999-05-05 AT AT99922180T patent/ATE215211T1/de not_active IP Right Cessation
- 1999-05-05 CN CNB998065668A patent/CN1136427C/zh not_active Expired - Fee Related
- 1999-05-05 DE DE59901070T patent/DE59901070D1/de not_active Expired - Fee Related
- 1999-05-05 PL PL99344242A patent/PL344242A1/xx unknown
- 1999-05-05 US US09/701,240 patent/US6351970B1/en not_active Expired - Fee Related
- 1999-05-05 SI SI9920039A patent/SI20486A/sl unknown
- 1999-05-05 WO PCT/EP1999/003079 patent/WO1999061853A1/de active IP Right Grant
- 1999-05-25 TW TW088108541A patent/TW453975B/zh not_active IP Right Cessation
-
2000
- 2000-11-24 NO NO20005955A patent/NO20005955D0/no not_active Application Discontinuation
- 2000-12-21 ZA ZA200007750A patent/ZA200007750B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9961853A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012107688A3 (fr) * | 2011-02-09 | 2014-07-24 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et appareil de séparation cryogénique d'un débit riche en méthane |
Also Published As
Publication number | Publication date |
---|---|
ZA200007750B (en) | 2001-11-12 |
DE59901070D1 (de) | 2002-05-02 |
NO20005955L (no) | 2000-11-24 |
EP1082577B1 (de) | 2002-03-27 |
DE19823526C1 (de) | 2000-01-05 |
CN1136427C (zh) | 2004-01-28 |
US6351970B1 (en) | 2002-03-05 |
TW453975B (en) | 2001-09-11 |
CN1305578A (zh) | 2001-07-25 |
PL344242A1 (en) | 2001-10-08 |
WO1999061853A1 (de) | 1999-12-02 |
ATE215211T1 (de) | 2002-04-15 |
NO20005955D0 (no) | 2000-11-24 |
SI20486A (sl) | 2001-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1082577A1 (de) | Verfahren zur xenongewinnung | |
DE3486017T2 (de) | Sehr reiner stickstoffgaserzeugungsapparat. | |
DE69503095T2 (de) | Lufttrennung | |
EP0299364A2 (de) | Verfahren und Vorrichtung zur Luftzerlegung durch Rektifikation | |
DE69504398T2 (de) | Verfahren und Vorrichtung für die Trennung einer Gasmischung | |
EP0955509A1 (de) | Verfahren und Vorrichtung zur Gewinnung von hochreinem Sauerstoff | |
DE69308456T2 (de) | Extrem reiner stickstoff- und sauerstoffgenerator und verfahren | |
DE69209572T2 (de) | Verfahren zur Herstellung von reinstem Stickstoff | |
DE69111099T2 (de) | Herstellung von sauerstoffarmem Argon aus Luft. | |
DE19906602A1 (de) | Verfahren und Vorrichtung zur Gewinnung von reinem Methan | |
DE69107165T2 (de) | Kryogenes lufttrenunnungsverfahren zur herstellung von sauerstoff und mitteldruckstickstoff. | |
EP1051588B1 (de) | Verfahren und vorrichtung zum verdampfen von flüssigem sauerstoff | |
DE102017010786A1 (de) | Verfahren und Vorrichtung zur Gewinnung eines Hochreinsauerstoffproduktstroms durch Tieftemperaturzerlegung von Luft | |
DE4200069C2 (de) | Verfahren und Vorrichtung zum Erzeugen von Rohneon | |
DE69613279T2 (de) | Lufttrennung | |
DE3876115T2 (de) | Rueckgewinnungsverfahren von argon. | |
EP1490295B2 (de) | Anlagenteil und verfahren zur zerlegung und reinigung von synthesegas | |
DE4323818A1 (de) | Verfahren und Anlage zum Herstellen von gasförmigem Stickstoff mit verschiedenen Reinheitsgraden | |
EP1231440B1 (de) | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft | |
EP2703756A1 (de) | Gewinnung von hochreinem Krypton und/oder Xenon | |
DE19855485A1 (de) | Verfahren und Vorrichtung zur Gewinnung eines krypton- und/oder xenonangereicherten Gemischs durch Gegenstrom-Stoffaustausch | |
DE69623416T2 (de) | Luftzerlegungsverfahren und -vorrichtung | |
EP1001236B1 (de) | Verfahren zur Gewinnung von ultrareinem Stickstoff | |
DE10332862A1 (de) | Verfahren und Vorrichtung zur Gewinnung von Krypton und/oder Xenon durch Tieftemperaturzerlegung | |
WO2016128111A1 (de) | Verfahren zur heliumgewinnung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20001213 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LINDE GAS AKTIENGESELLSCHAFT |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
17Q | First examination report despatched |
Effective date: 20010821 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020327 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020327 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020327 |
|
REF | Corresponds to: |
Ref document number: 215211 Country of ref document: AT Date of ref document: 20020415 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59901070 Country of ref document: DE Date of ref document: 20020502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020505 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020505 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020531 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020627 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020627 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20020613 |
|
ET | Fr: translation filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020925 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20021230 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030531 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20050503 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20050506 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20050511 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060505 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060506 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061201 |
|
EUG | Se: european patent has lapsed | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20061201 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20070503 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20070502 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20070507 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20070510 Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CA |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20080505 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20090119 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080602 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080505 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080505 |