GB955894A - Method for increasing the concentration of oxygen in air - Google Patents
Method for increasing the concentration of oxygen in airInfo
- Publication number
- GB955894A GB955894A GB366662A GB366662A GB955894A GB 955894 A GB955894 A GB 955894A GB 366662 A GB366662 A GB 366662A GB 366662 A GB366662 A GB 366662A GB 955894 A GB955894 A GB 955894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- effected
- pressure
- regeneration
- air
- pumping
- 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
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
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/308—Pore size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- 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
- C01B2210/0046—Nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
A method of increasing the content of oxygen in air comprises selectively adsorbing nitrogen therefrom by periodically contacting air at constant pressure and at -30 to 40 DEG c. with a molecular sieve zeolite, the pores of which have a diameter of at least 4 ngstrom, and regenerating the zeolite at -30 to 40 DEG C. Zeolites used are preferably of sodium-calcium or sodiumstrontium aluminosilicates, for example "Linde 5A" (Registered Trade Mark), in which the negatively charged lattice zones of the aluminosilicate structure are about two-thirds saturated by calcium ions and about one-third by sodium ions. Nitrogen adsorption may be effected at a pressure of between 1 and 5 atmospheres gauge, and regeneration is then effected by reducing the pressure to atmospheric; further regeneration may then be effected by pumping off adsorbed gases. Alternatively nitrogen adsorption may take place at normal pressure, whereupon regeneration is effected by pumping off adsorbed gases. Specifications 777,232 and 777,233 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF33107A DE1265724B (en) | 1961-02-01 | 1961-02-01 | Process for the enrichment of oxygen in air |
Publications (1)
Publication Number | Publication Date |
---|---|
GB955894A true GB955894A (en) | 1964-04-22 |
Family
ID=7094947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB366662A Expired GB955894A (en) | 1961-02-01 | 1962-01-31 | Method for increasing the concentration of oxygen in air |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE613267A (en) |
DE (1) | DE1265724B (en) |
GB (1) | GB955894A (en) |
LU (1) | LU41098A1 (en) |
NL (2) | NL140488B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11951260B2 (en) | 2020-01-21 | 2024-04-09 | Wearair Ventures, Inc. | Efficient enriched oxygen airflow systems and methods |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2198775A1 (en) * | 1972-09-14 | 1974-04-05 | Aquitaine Petrole | Cheap oxygenated air prodn - by adsorbing nitrogen from air passed through column contg. crystalline zeolite |
US4194891A (en) * | 1978-12-27 | 1980-03-25 | Union Carbide Corporation | Multiple bed rapid pressure swing adsorption for oxygen |
US4481018A (en) * | 1982-11-15 | 1984-11-06 | Air Products And Chemicals, Inc. | Polyvalent ion exchanged adsorbent for air separation |
JPS62212220A (en) * | 1986-03-13 | 1987-09-18 | Toyo Soda Mfg Co Ltd | Production of molded article of zeolite |
FR2618085A1 (en) * | 1987-07-17 | 1989-01-20 | Rhone Poulenc Chimie | ADSORBENT FOR GAS PURIFICATION AND PURIFICATION PROCESS |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE589295A (en) * | 1957-11-21 |
-
0
- NL NL274214D patent/NL274214A/xx unknown
- BE BE613267D patent/BE613267A/xx unknown
-
1961
- 1961-02-01 DE DEF33107A patent/DE1265724B/en active Pending
-
1962
- 1962-01-15 LU LU41098D patent/LU41098A1/xx unknown
- 1962-01-31 GB GB366662A patent/GB955894A/en not_active Expired
- 1962-01-31 NL NL274214A patent/NL140488B/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11951260B2 (en) | 2020-01-21 | 2024-04-09 | Wearair Ventures, Inc. | Efficient enriched oxygen airflow systems and methods |
Also Published As
Publication number | Publication date |
---|---|
NL140488B (en) | 1973-12-17 |
BE613267A (en) | |
LU41098A1 (en) | 1962-03-15 |
NL274214A (en) | |
DE1265724B (en) | 1968-04-11 |
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