US2768940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for segregating vapors from liquid
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-07-31
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Granted: 1956-10-30
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Expires: 1972-07-31
Abstract
No abstract record available.
Inventors
- 👤 Walter H Rupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0005; B01D19/001; B01D19/0015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN IMPROVED PROCESS FOR SEGREGATING RELATIVELY LOW BOILING CONSITUENTS FROM RELATIVELY HIGH BOILING CONSTITUENTS WHICH COMPRISES HEATING A STREAM COMPRISING LIQUID CONSTITUENTS OF DIFFERENT BOILING POINTS AND SUBJECTING SAID STREAM TO PRESSURE, SEGREGATING SAID HEATED STREAM UNDERPRESSURE INTO AT LEAST TWO STREAMS, THEREAFTER PASSING SAID SEGREGATED STREAMS INTO SEPARATE SUPERIMPOSED LOW VELOCITY FLASH ZONES IN THE LOWER AREA OF SINGLE FLASH TOWER, MAINTAINING A COMMON VAPOR COMBINING ZONE ABOVE SAID FLASH ZONES, SHARPLY REDUCING THE PRESSURE ON SAID STREAMS IN SAID FLASH ZONES WHEREBY RAPID VAPORIZATION OF THE LOWER BOILING CONSTITUENTS OCCURS, WITHDRAWING CONDENSED LIQUID FROM THE BOTTOM OF SAID FLASH TOWER, MAINTAINING SEPARATE PATHS FROM EACH OF SAID FLASH ZONES TO SAID VAPOR COMBINING ZONE SEPARATELY PASSING VAPORS FROM THE RESPECTIVE FLASH ZONES INTO SAID COMMON VAPOR COMBINING ZONE, COMBINING THE VAPORS FROM SAID FLASH ZONE IN SAID HIGH VAPOR VELOCITY VAPOR COMBINING ZONE OF SAID TOWER, AND WITHDRAWING VAPORS FROM THE TOP OF SAID TOWER.
Claim 2
Dependent Claim
157 words
AN IMPROVED PROCESS FOR SEGREGATING RELATIVELY LOW BOILING CONSITUENTS FROM RELATIVELY HIGH BOILING CONSTITUENTS WHICH COMPRISES HEATING A STREAM COMPRISING LIQUID CONSTITUENTS OF DIFFERENT BOILING POINTS AND SUBJECTING SAID STREAM TO PRESSURE, SEGREGATING SAID HEATED STREAM UNDERPRESSURE INTO AT LEAST TWO STREAMS, THEREAFTER PASSING SAID SEGREGATED STREAMS INTO SEPARATE SUPERIMPOSED LOW VELOCITY FLASH ZONES IN THE LOWER AREA OF SINGLE FLASH TOWER, MAINTAINING A COMMON VAPOR COMBINING ZONE ABOVE SAID FLASH ZONES, SHARPLY REDUCING THE PRESSURE ON SAID STREAMS IN SAID FLASH ZONES WHEREBY RAPID VAPORIZATION OF THE LOWER BOILING CONSTITUENTS OCCURS, WITHDRAWING CONDENSED LIQUID FROM THE BOTTOM OF SAID FLASH TOWER, MAINTAINING SEPARATE PATHS FROM EACH OF SAID FLASH ZONES TO SAID VAPOR COMBINING ZONE SEPARATELY PASSING VAPORS FROM THE RESPECTIVE FLASH ZONES INTO SAID COMMON VAPOR COMBINING ZONE, COMBINING THE VAPORS FROM SAID FLASH ZONE IN SAID HIGH VAPOR VELOCITY VAPOR COMBINING ZONE OF SAID TOWER, AND WITHDRAWING VAPORS FROM THE TOP OF SAID TOWER.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |