NL8803062A - Werkwijze voor het scheiden van lucht. - Google Patents
Werkwijze voor het scheiden van lucht. Download PDFInfo
- Publication number
- NL8803062A NL8803062A NL8803062A NL8803062A NL8803062A NL 8803062 A NL8803062 A NL 8803062A NL 8803062 A NL8803062 A NL 8803062A NL 8803062 A NL8803062 A NL 8803062A NL 8803062 A NL8803062 A NL 8803062A
- Authority
- NL
- Netherlands
- Prior art keywords
- column
- nitrogen
- oxygen
- air
- liquid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 88
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 218
- 229910052757 nitrogen Inorganic materials 0.000 claims description 109
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 80
- 239000001301 oxygen Substances 0.000 claims description 80
- 229910052760 oxygen Inorganic materials 0.000 claims description 80
- 238000004821 distillation Methods 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 42
- 238000001704 evaporation Methods 0.000 claims description 20
- 238000010992 reflux Methods 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 10
- 239000006227 byproduct Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 21
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 20
- 239000000047 product Substances 0.000 description 19
- 238000000926 separation method Methods 0.000 description 19
- 238000005194 fractionation Methods 0.000 description 12
- 230000008020 evaporation Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005094 computer simulation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000012263 liquid product Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- MOMWFXLCFJOAFX-UHFFFAOYSA-N OOOOOOOO Chemical compound OOOOOOOO MOMWFXLCFJOAFX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000011027 product recovery Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—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
- F25J3/04151—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
- F25J3/0423—Subcooling of liquid process 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
- F25J3/04309—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 nitrogen
- F25J3/04315—Lowest pressure or impure nitrogen, so-called waste nitrogen expansion
-
- 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
-
- 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
- F25J3/0443—A main column system not otherwise provided, e.g. a modified double column flowsheet
-
- 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
- F25J2200/20—Processes or apparatus using separation by rectification in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
-
- 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
- F25J2215/56—Ultra high purity oxygen, i.e. generally more than 99,9% 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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/20—Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13253487 | 1987-12-14 | ||
| US07/132,534 US4783210A (en) | 1987-12-14 | 1987-12-14 | Air separation process with modified single distillation column nitrogen generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8803062A true NL8803062A (nl) | 1989-07-03 |
Family
ID=22454477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8803062A NL8803062A (nl) | 1987-12-14 | 1988-12-14 | Werkwijze voor het scheiden van lucht. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4783210A (no) |
| KR (1) | KR910004123B1 (no) |
| CA (1) | CA1283846C (no) |
| NL (1) | NL8803062A (no) |
| NO (1) | NO169977C (no) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8800842D0 (en) * | 1988-01-14 | 1988-02-17 | Boc Group Plc | Air separation |
| US4936099A (en) * | 1989-05-19 | 1990-06-26 | Air Products And Chemicals, Inc. | Air separation process for the production of oxygen-rich and nitrogen-rich products |
| US4927441A (en) * | 1989-10-27 | 1990-05-22 | Air Products And Chemicals, Inc. | High pressure nitrogen production cryogenic process |
| US5074898A (en) * | 1990-04-03 | 1991-12-24 | Union Carbide Industrial Gases Technology Corporation | Cryogenic air separation method for the production of oxygen and medium pressure nitrogen |
| US5205127A (en) * | 1990-08-06 | 1993-04-27 | Air Products And Chemicals, Inc. | Cryogenic process for producing ultra high purity nitrogen |
| US5123946A (en) * | 1990-08-22 | 1992-06-23 | Liquid Air Engineering Corporation | Cryogenic nitrogen generator with bottom reboiler and nitrogen expander |
| US5123947A (en) * | 1991-01-03 | 1992-06-23 | Air Products And Chemicals, Inc. | Cryogenic process for the separation of air to produce ultra high purity nitrogen |
| US5165245A (en) * | 1991-05-14 | 1992-11-24 | Air Products And Chemicals, Inc. | Elevated pressure air separation cycles with liquid production |
| US5218825A (en) * | 1991-11-15 | 1993-06-15 | Air Products And Chemicals, Inc. | Coproduction of a normal purity and ultra high purity volatile component from a multi-component stream |
| FR2694383B1 (fr) * | 1992-07-29 | 1994-09-16 | Air Liquide | Production et installation de production d'azote gazeux à plusieurs puretés différentes. |
| US5528906A (en) * | 1995-06-26 | 1996-06-25 | The Boc Group, Inc. | Method and apparatus for producing ultra-high purity oxygen |
| JP3203181B2 (ja) * | 1996-05-14 | 2001-08-27 | 日本エア・リキード株式会社 | 窒素製造装置に付随する酸素製造方法 |
| US5669236A (en) * | 1996-08-05 | 1997-09-23 | Praxair Technology, Inc. | Cryogenic rectification system for producing low purity oxygen and high purity oxygen |
| US5794458A (en) * | 1997-01-30 | 1998-08-18 | The Boc Group, Inc. | Method and apparatus for producing gaseous oxygen |
| FR2767317B1 (fr) | 1997-08-14 | 1999-09-10 | Air Liquide | Procede de conversion d'un debit contenant des hydrocarbures par oxydation partielle |
| US5934104A (en) * | 1998-06-02 | 1999-08-10 | Air Products And Chemicals, Inc. | Multiple column nitrogen generators with oxygen coproduction |
| US6568209B1 (en) | 2002-09-06 | 2003-05-27 | Praxair Technology, Inc. | Cryogenic air separation system with dual section main heat exchanger |
| AU2011225700B2 (en) * | 2010-03-12 | 2014-09-11 | Institute Of Chemical Technology | Improved thermodynamic cycle |
| US20130139547A1 (en) | 2011-12-05 | 2013-06-06 | Henry Edward Howard | Air separation method and apparatus |
| WO2020083525A1 (de) * | 2018-10-23 | 2020-04-30 | Linde Aktiengesellschaft | Verfahren und anlage zur tieftemperaturzerlegung von luft |
| KR20230171441A (ko) * | 2021-04-09 | 2023-12-20 | 린데 게엠베하 | 공기의 저온 분리를 위한 방법 및 플랜트 |
| CN114777416B (zh) * | 2022-04-22 | 2023-02-07 | 杭州特盈能源技术发展有限公司 | 一种绿电高效转化低能耗空分储能工艺 |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2627731A (en) * | 1949-06-18 | 1953-02-10 | Hydrocarbon Research Inc | Rectification of gaseous mixtures |
| FR1138601A (fr) * | 1955-12-15 | 1957-06-17 | Air Liquide | Perfectionnements à la purification et à la séparation de l'air en ses éléments |
| US3327489A (en) * | 1960-08-25 | 1967-06-27 | Air Prod & Chem | Method for separating gaseous mixtures |
| US3210951A (en) * | 1960-08-25 | 1965-10-12 | Air Prod & Chem | Method for low temperature separation of gaseous mixtures |
| US3277655A (en) * | 1960-08-25 | 1966-10-11 | Air Prod & Chem | Separation of gaseous mixtures |
| US3214926A (en) * | 1963-04-15 | 1965-11-02 | Philips Corp | Method of producing liquid oxygen and/or liquid nitrogen |
| US3217502A (en) * | 1963-04-22 | 1965-11-16 | Hydrocarbon Research Inc | Liquefaction of air |
| DE1275076B (de) * | 1965-07-20 | 1968-08-14 | Linde Ag | Verfahren zur Durchfuehrung des Waermeaustausches bei der Tieftemperaturzerlegung von Gasgemischen |
| GB1325166A (en) * | 1969-10-20 | 1973-08-01 | Kobe Steel Ltd | Air rectification process for the production of gaseous or liquid nitrogen |
| JPS4940071B1 (no) * | 1970-01-09 | 1974-10-30 | ||
| GB1314347A (en) * | 1970-03-16 | 1973-04-18 | Air Prod Ltd | Air rectification process for the production of oxygen |
| US3731495A (en) * | 1970-12-28 | 1973-05-08 | Union Carbide Corp | Process of and apparatus for air separation with nitrogen quenched power turbine |
| GB1576910A (en) * | 1978-05-12 | 1980-10-15 | Air Prod & Chem | Process and apparatus for producing gaseous nitrogen |
| US4224045A (en) * | 1978-08-23 | 1980-09-23 | Union Carbide Corporation | Cryogenic system for producing low-purity oxygen |
| US4356014A (en) * | 1979-04-04 | 1982-10-26 | Petrochem Consultants, Inc. | Cryogenic recovery of liquids from refinery off-gases |
| US4406188A (en) * | 1981-11-19 | 1983-09-27 | Mills Blaine N | Nut-holder attachment for open-end wrench |
| US4382366A (en) * | 1981-12-07 | 1983-05-10 | Air Products And Chemicals, Inc. | Air separation process with single distillation column for combined gas turbine system |
| US4464191A (en) * | 1982-09-29 | 1984-08-07 | Erickson Donald C | Cryogenic gas separation with liquid exchanging columns |
| US4453957A (en) * | 1982-12-02 | 1984-06-12 | Union Carbide Corporation | Double column multiple condenser-reboiler high pressure nitrogen process |
| US4464188A (en) * | 1983-09-27 | 1984-08-07 | Air Products And Chemicals, Inc. | Process and apparatus for the separation of air |
| US4560397A (en) * | 1984-08-16 | 1985-12-24 | Union Carbide Corporation | Process to produce ultrahigh purity oxygen |
| JPS61110872A (ja) * | 1984-11-02 | 1986-05-29 | 日本酸素株式会社 | 窒素製造方法 |
| US4617036A (en) * | 1985-10-29 | 1986-10-14 | Air Products And Chemicals, Inc. | Tonnage nitrogen air separation with side reboiler condenser |
| US4655809A (en) * | 1986-01-10 | 1987-04-07 | Air Products And Chemicals, Inc. | Air separation process with single distillation column with segregated heat pump cycle |
| US4662917A (en) * | 1986-05-30 | 1987-05-05 | Air Products And Chemicals, Inc. | Process for the separation of air |
| US4662918A (en) * | 1986-05-30 | 1987-05-05 | Air Products And Chemicals, Inc. | Air separation process |
| US4662916A (en) * | 1986-05-30 | 1987-05-05 | Air Products And Chemicals, Inc. | Process for the separation of air |
| US4704147A (en) * | 1986-08-20 | 1987-11-03 | Air Products And Chemicals, Inc. | Dual air pressure cycle to produce low purity oxygen |
| US4702757A (en) * | 1986-08-20 | 1987-10-27 | Air Products And Chemicals, Inc. | Dual air pressure cycle to produce low purity oxygen |
| US4704148A (en) * | 1986-08-20 | 1987-11-03 | Air Products And Chemicals, Inc. | Cycle to produce low purity oxygen |
-
1987
- 1987-12-14 US US07/132,534 patent/US4783210A/en not_active Expired - Fee Related
-
1988
- 1988-12-08 CA CA000585328A patent/CA1283846C/en not_active Expired - Lifetime
- 1988-12-13 NO NO885527A patent/NO169977C/no unknown
- 1988-12-14 KR KR1019880016621A patent/KR910004123B1/ko not_active Application Discontinuation
- 1988-12-14 NL NL8803062A patent/NL8803062A/nl not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO885527L (no) | 1989-06-15 |
| US4783210A (en) | 1988-11-08 |
| NO885527D0 (no) | 1988-12-13 |
| KR910004123B1 (ko) | 1991-06-22 |
| KR890009438A (ko) | 1989-08-02 |
| NO169977C (no) | 1992-08-26 |
| NO169977B (no) | 1992-05-18 |
| CA1283846C (en) | 1991-05-07 |
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