CA1232430A - Air separation with temperature and pressure swing - Google Patents
Air separation with temperature and pressure swingInfo
- Publication number
- CA1232430A CA1232430A CA000490268A CA490268A CA1232430A CA 1232430 A CA1232430 A CA 1232430A CA 000490268 A CA000490268 A CA 000490268A CA 490268 A CA490268 A CA 490268A CA 1232430 A CA1232430 A CA 1232430A
- Authority
- CA
- Canada
- Prior art keywords
- oxygen
- pressure
- temperature
- absorption
- zone
- 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.)
- Expired
Links
- 238000000926 separation method Methods 0.000 title abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 37
- 230000008569 process Effects 0.000 claims abstract description 30
- 238000003795 desorption Methods 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 76
- 239000001301 oxygen Substances 0.000 claims description 76
- 229910052760 oxygen Inorganic materials 0.000 claims description 76
- 238000010521 absorption reaction Methods 0.000 claims description 48
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 229910052783 alkali metal Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- -1 alkali metal nitrite Chemical class 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 150000002823 nitrates Chemical class 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 abstract description 35
- 230000002745 absorbent Effects 0.000 abstract description 35
- 239000000126 substance Substances 0.000 abstract description 11
- 239000000047 product Substances 0.000 description 17
- 239000006096 absorbing agent Substances 0.000 description 9
- 150000001340 alkali metals Chemical class 0.000 description 6
- 239000011833 salt mixture Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical class [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002516 radical scavenger Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 241000238366 Cephalopoda Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 229910001963 alkali metal nitrate Inorganic materials 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000008774 maternal effect Effects 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0292—Preparation from air using a molten phase containing alkali metal nitrite, optionally together with other oxygen acceptors
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0411—Chemical processing only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0045—Oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Gas Separation By Absorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Separation Of Gases By Adsorption (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/651,181 US4565685A (en) | 1984-09-14 | 1984-09-14 | Air separation with temperature and pressure swing |
| US651,181 | 1984-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1232430A true CA1232430A (en) | 1988-02-09 |
Family
ID=24611894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000490268A Expired CA1232430A (en) | 1984-09-14 | 1985-09-09 | Air separation with temperature and pressure swing |
Country Status (9)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746502A (en) * | 1985-08-26 | 1988-05-24 | Air Products And Chemicals, Inc. | Liquid phase thermal swing chemical air separation |
| US4708860A (en) * | 1986-12-29 | 1987-11-24 | Air Products And Chemicals, Inc. | Split-flow regeneration in absorptive air separation |
| US4859296A (en) * | 1987-09-01 | 1989-08-22 | Institute Of Gas Technology | Electrochemical separation of oxygen |
| US4738760A (en) * | 1987-09-01 | 1988-04-19 | Institute Of Gas Technology | Electrochemical separation of oxygen |
| US4908113A (en) * | 1987-09-01 | 1990-03-13 | Institute Of Gas Technology | Apparatus for the electrochemical separation of oxygen |
| US4800070A (en) * | 1987-09-08 | 1989-01-24 | Air Products And Chemicals, Inc. | Catalysts for absorptive air separation |
| US4988488A (en) * | 1989-10-19 | 1991-01-29 | Air Products And Chemicals, Inc. | Iron aluminides and nickel aluminides as materials for chemical air separation |
| US5169506A (en) * | 1990-12-31 | 1992-12-08 | Invacare Corporation | Oxygen concentration system utilizing pressurized air |
| US5186793A (en) * | 1990-12-31 | 1993-02-16 | Invacare Corporation | Oxygen concentrator utilizing electrochemical cell |
| US5225174A (en) * | 1991-12-11 | 1993-07-06 | Bend Research, Inc. | Nitrogen sorption |
| US5647891A (en) * | 1995-09-22 | 1997-07-15 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for heated, pressure-swing high pressure air dehydration |
| US6627338B2 (en) * | 1999-12-22 | 2003-09-30 | Ballard Power Systems Inc. | Integrated fuel cell and pressure swing adsorption system |
| DE102013209658A1 (de) | 2013-05-24 | 2014-05-22 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Thermochemische Gewinnung von Sauerstoff aus Luft mit Hilfe von konzentrierter Solarstrahlung |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3479261A (en) * | 1967-05-15 | 1969-11-18 | North American Rockwell | Electrochemical method for recovery of sulfur oxides |
| US4132766A (en) * | 1977-05-24 | 1979-01-02 | Erickson Donald C | Separation of oxygen from gaseous mixtures with molten alkali metal salts |
| US4340578A (en) * | 1977-05-24 | 1982-07-20 | Erickson Donald C | Oxygen production by molten alkali metal salts |
| US4287170A (en) * | 1980-03-06 | 1981-09-01 | Erickson Donald C | Nitrogen and oxygen via chemical air separation |
| US4421530A (en) * | 1982-09-13 | 1983-12-20 | Air Products And Chemicals, Inc. | Process for removing oxygen from mixed gas streams using a swing adiabatic absorption-isothermal desorption cycle |
| US4521398A (en) * | 1983-07-18 | 1985-06-04 | Air Products And Chemicals, Inc. | Controlled temperature expansion in oxygen production by molten alkali metal salts |
| US4526775A (en) * | 1984-02-23 | 1985-07-02 | Air Products And Chemicals, Inc. | Oxygen production by molten alkali metal salts using multiple absorption-desorption cycles |
| US4529577A (en) * | 1984-07-11 | 1985-07-16 | Air Products And Chemicals, Inc. | Oxygen/nitrogen production with molten alkali salts |
-
1984
- 1984-09-14 US US06/651,181 patent/US4565685A/en not_active Expired - Fee Related
-
1985
- 1985-09-09 CA CA000490268A patent/CA1232430A/en not_active Expired
- 1985-09-10 AU AU47336/85A patent/AU558188B2/en not_active Ceased
- 1985-09-12 KR KR1019850006665A patent/KR890001964B1/ko not_active Expired
- 1985-09-13 JP JP60201948A patent/JPS6174622A/ja active Granted
- 1985-09-13 MX MX206627A patent/MX170230B/es unknown
- 1985-09-13 EP EP85111621A patent/EP0175306B1/en not_active Expired - Lifetime
- 1985-09-13 DE DE8585111621T patent/DE3580633D1/de not_active Expired - Lifetime
- 1985-09-13 ZA ZA857054A patent/ZA857054B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4565685A (en) | 1986-01-21 |
| JPH0244572B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-10-04 |
| ZA857054B (en) | 1987-05-27 |
| KR890001964B1 (ko) | 1989-06-05 |
| EP0175306B1 (en) | 1990-11-22 |
| MX170230B (es) | 1993-08-11 |
| JPS6174622A (ja) | 1986-04-16 |
| DE3580633D1 (de) | 1991-01-03 |
| AU558188B2 (en) | 1987-01-22 |
| EP0175306A3 (en) | 1988-01-27 |
| KR860002416A (ko) | 1986-04-26 |
| AU4733685A (en) | 1986-03-20 |
| EP0175306A2 (en) | 1986-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20050909 |