JPS6438124A - Separation of gaseous nitrogen having high purity - Google Patents
Separation of gaseous nitrogen having high purityInfo
- Publication number
- JPS6438124A JPS6438124A JP62195018A JP19501887A JPS6438124A JP S6438124 A JPS6438124 A JP S6438124A JP 62195018 A JP62195018 A JP 62195018A JP 19501887 A JP19501887 A JP 19501887A JP S6438124 A JPS6438124 A JP S6438124A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- pressure
- adsorption
- completed
- regeneration
- 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
Landscapes
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
PURPOSE:To obtain gaseous N2 having high purity by communicating an adsorption tank A which has completed adsorption with an adsorption tank B which has completed regeneration until the pressure in the both tanks become equal, then flowing produced N2 back to the tank B so as to elevate the pressure of the tank B, and carrying out adsorption by introducing raw gas into the B tank while performing regeneration process of the tank A by reducing the pressure of the tank A to 150Torr. CONSTITUTION:An outlet and an inlet of each adsorption tank A which has completed adsorption and those of an adsorption tank B which has completed regeneration are communicated respectively by opening a valve 11 and 12 and the operation of each tank is stopped before the pressure of both tanks are equalized. Then, produced N2 is flowed back from a produced gas storage tank 3 to the adsorption tank B. And, the pressure of the tank B is elevated to >=50% pressure of the highest pressure of the adsorption operation. Feed gas contg. >=78% N2 is then introduced into the tank B to adsorb O2 to molecular sieve coal obtg. thus product N2. On one hand, the pressure of the adsorption tank A is reduced to <=150Torr with a vacuum pump 4 after discharging to external atmosphere until the pressure attains near atmospheric pressure to perform then vacuum regeneration. Similar operation is performed by exchanging the tank A with the tank B.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195018A JPS6438124A (en) | 1987-08-04 | 1987-08-04 | Separation of gaseous nitrogen having high purity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195018A JPS6438124A (en) | 1987-08-04 | 1987-08-04 | Separation of gaseous nitrogen having high purity |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6438124A true JPS6438124A (en) | 1989-02-08 |
JPH0461684B2 JPH0461684B2 (en) | 1992-10-01 |
Family
ID=16334164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62195018A Granted JPS6438124A (en) | 1987-08-04 | 1987-08-04 | Separation of gaseous nitrogen having high purity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438124A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03228806A (en) * | 1990-01-31 | 1991-10-09 | Kanebo Ltd | Separation of gaseous nitrogen |
JPH03232515A (en) * | 1990-02-06 | 1991-10-16 | Kanebo Ltd | Separation of gaseous nitrogen |
JPH03238018A (en) * | 1990-02-10 | 1991-10-23 | Kanebo Ltd | Separation of nitrogen gas |
CN101913581A (en) * | 2010-07-15 | 2010-12-15 | 首钢总公司 | Method for preparing ultra-high purity gas by combining liquid pump with raw material gas cylinder |
-
1987
- 1987-08-04 JP JP62195018A patent/JPS6438124A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03228806A (en) * | 1990-01-31 | 1991-10-09 | Kanebo Ltd | Separation of gaseous nitrogen |
JPH03232515A (en) * | 1990-02-06 | 1991-10-16 | Kanebo Ltd | Separation of gaseous nitrogen |
JPH03238018A (en) * | 1990-02-10 | 1991-10-23 | Kanebo Ltd | Separation of nitrogen gas |
CN101913581A (en) * | 2010-07-15 | 2010-12-15 | 首钢总公司 | Method for preparing ultra-high purity gas by combining liquid pump with raw material gas cylinder |
Also Published As
Publication number | Publication date |
---|---|
JPH0461684B2 (en) | 1992-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |