JPS54103777A - Pretreatment of air separator - Google Patents
Pretreatment of air separatorInfo
- Publication number
- JPS54103777A JPS54103777A JP931478A JP931478A JPS54103777A JP S54103777 A JPS54103777 A JP S54103777A JP 931478 A JP931478 A JP 931478A JP 931478 A JP931478 A JP 931478A JP S54103777 A JPS54103777 A JP S54103777A
- Authority
- JP
- Japan
- Prior art keywords
- tower
- air
- impure
- pipe
- desorption
- 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.)
- Pending
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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
- F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
- F25J3/04181—Regenerating the adsorbents
-
- 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
- F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
-
- 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
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
- F25J2205/66—Regenerating the adsorption vessel, e.g. kind of reactivation gas
- F25J2205/70—Heating the adsorption vessel
Abstract
PURPOSE:H2O and CO2 in compressed air is absorbed and removed by three zeolite absorber towers. A special conditions are used for absorption and regeneration by using impure N2 to reduce the amount of N2 use, to increase N2 recovery as product and to control the changes of flow rate and pressure of air and N2. CONSTITUTION:Air 5 is compressed 1, cooled 2, and introduced into the zeolite absorb tower 4a to remove H2O and CO2 and transferred into the air separator 3. From impure N2 11 of the deparator 3, 50 to 95% is sent through the pipe 12b to the absorb tower 4b for desorption and regeneration, and is discharged from the pipes 13b, 19. The tower 4b stops desorbing operation, into which compressed air is passed through to go out from the pipes 6b, 7b. Next, the tower 4 air pass is stopped, air pressure is dropped, and a impure N2 is introduced from the pipe 12a. The above 4a, 4b towers absortion and desorption is carried out at 5 to 30 minute intervals. Meanwhile, the tower 4c is regenerated by passing 50 to 5% of impure N2 through the pipe 14, the condenser 2 and the pipe 16c. These three tower operation is sequently changed at regular intervals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP931478A JPS54103777A (en) | 1978-02-01 | 1978-02-01 | Pretreatment of air separator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP931478A JPS54103777A (en) | 1978-02-01 | 1978-02-01 | Pretreatment of air separator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54103777A true JPS54103777A (en) | 1979-08-15 |
Family
ID=11717001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP931478A Pending JPS54103777A (en) | 1978-02-01 | 1978-02-01 | Pretreatment of air separator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54103777A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56153794U (en) * | 1980-04-18 | 1981-11-17 | ||
JPS5881300A (en) * | 1981-11-09 | 1983-05-16 | Daido Sanso Kk | Transportation method of extremely high purity gas |
EP0718576A1 (en) | 1994-12-23 | 1996-06-26 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for separating a gaseous mixture by cryogenic distillation |
US5919286A (en) * | 1997-03-06 | 1999-07-06 | Air Products And Chemicals, Inc. | PSA process for removel of nitrogen oxides from gas |
US6077488A (en) * | 1998-03-19 | 2000-06-20 | The Boc Group, Inc. | Method and apparatus for producing clean dry air having application to air separation |
CN104359286A (en) * | 2014-11-12 | 2015-02-18 | 辽宁哈深冷气体液化设备有限公司 | Method for removing acidic gas from natural gas |
-
1978
- 1978-02-01 JP JP931478A patent/JPS54103777A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56153794U (en) * | 1980-04-18 | 1981-11-17 | ||
JPS5881300A (en) * | 1981-11-09 | 1983-05-16 | Daido Sanso Kk | Transportation method of extremely high purity gas |
JPH0371600B2 (en) * | 1981-11-09 | 1991-11-13 | Daido Oxygen | |
EP0718576A1 (en) | 1994-12-23 | 1996-06-26 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for separating a gaseous mixture by cryogenic distillation |
FR2728663A1 (en) * | 1994-12-23 | 1996-06-28 | Air Liquide | PROCESS FOR SEPARATING A GASEOUS MIXTURE BY CRYOGENIC DISTILLATION |
US5651271A (en) * | 1994-12-23 | 1997-07-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for the separation of a gas mixture by cryogenic distillation |
US5919286A (en) * | 1997-03-06 | 1999-07-06 | Air Products And Chemicals, Inc. | PSA process for removel of nitrogen oxides from gas |
US6077488A (en) * | 1998-03-19 | 2000-06-20 | The Boc Group, Inc. | Method and apparatus for producing clean dry air having application to air separation |
CN104359286A (en) * | 2014-11-12 | 2015-02-18 | 辽宁哈深冷气体液化设备有限公司 | Method for removing acidic gas from natural gas |
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