US2962867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for decomposing hydrogencontaining gas mixtures
Assignee: Linde GmbH
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Filing: 1957-08-05
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Granted: 1960-12-06
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Expires: 1977-08-05
Abstract
No abstract record available.
Inventors
- 👤 Seidel Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/02; C01B3/00; C01B3/02; C01B3/025; C01B3/50; C01B3/506; C10; C10K; C10K1/00; C10K1/08; C10K1/16; C10K1/165; F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0219; F25J3/0228; F25J3/0276; F25J3/04; F25J3/04151; F25J3/04187; F25J3/0423; F25J3/04248; F25J3/04284; F25J3/0429; F25J3/04296; F25J3/04303; F25J3/04406; F25J3/04412; F25J3/04521; F25J3/04563; F25J3/04587; F25J3/04612; F25J3/04763; F25J3/04866; F25J3/0489; F25J2205/00; F25J2205/24; F25J2205/30; F25J2210/00; F25J2210/14; F25J2210/42; F25J2250/00; F25J2250/30; F25J2250/42; F25J2250/52; F25J2260/00; F25J2260/02; Y; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR THE DECOMPOSITION OF A HYDROGEN-CONTAINING GAS MIXTURE INVOLVING WASHING AT LEAST ONE DIFFCULTLY CONDENSIBLE COMPONENT OUT OF SAID GAS MIXTURE BY CONTACTING IT WITH LIQUID NITROGEN WHICH COMPRISES SIMULTANEOUSLY OPERATING A GAS DECOMPOSING PLANT OPERATING UPON SAID GAS MIXTURE AND AN AIR DECOMPOSING PLANT, WITHDRAWING NITROGEN FROM SAID AIR DECOMPOSING PLANT, COMPRESSING THE NITROGEN TO THE PRESSURE REQUIRED FOR SAID WASHING OPERATION, PRECOOLING THE COMPRESSED NITROGEN BY INDIRECT HEAT EXCHANGE WITH AT LEAST ONE FRACTION OF SAID HYDROGEN-CONTAINING GAS MIXTURE IN SAID GAS DECOMPOSING PLANT, FURTHER COOLING AND AT LEAST PARTIALLY LIQUIFYING SAID PRECOOLED NITROGEN BY INDIRECT HEAT EXCHANGE IN SAID AIRDECOMPOSING PLANT AND RETURNING THE RESULTING LIQUIFIED NITROGEN TO SAID GAS DECOMPOSING PLANT AND USING IT THEREIN AS THE WASHING LIQUID.
Claim 2
Dependent Claim
125 words
A PROCESS FOR THE DECOMPOSITION OF A HYDROGEN-CONTAINING GAS MIXTURE INVOLVING WASHING AT LEAST ONE DIFFCULTLY CONDENSIBLE COMPONENT OUT OF SAID GAS MIXTURE BY CONTACTING IT WITH LIQUID NITROGEN WHICH COMPRISES SIMULTANEOUSLY OPERATING A GAS DECOMPOSING PLANT OPERATING UPON SAID GAS MIXTURE AND AN AIR DECOMPOSING PLANT, WITHDRAWING NITROGEN FROM SAID AIR DECOMPOSING PLANT, COMPRESSING THE NITROGEN TO THE PRESSURE REQUIRED FOR SAID WASHING OPERATION, PRECOOLING THE COMPRESSED NITROGEN BY INDIRECT HEAT EXCHANGE WITH AT LEAST ONE FRACTION OF SAID HYDROGEN-CONTAINING GAS MIXTURE IN SAID GAS DECOMPOSING PLANT, FURTHER COOLING AND AT LEAST PARTIALLY LIQUIFYING SAID PRECOOLED NITROGEN BY INDIRECT HEAT EXCHANGE IN SAID AIRDECOMPOSING PLANT AND RETURNING THE RESULTING LIQUIFIED NITROGEN TO SAID GAS DECOMPOSING PLANT AND USING IT THEREIN AS THE WASHING LIQUID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |