US3401093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor liquid mixing in fractionation overhead system
Assignee: Phillips Petroleum Co
•
Filing: 1965-10-21
•
Granted: 1968-09-10
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Clyde M Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:25
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4216; Y; Y10; Y10S; Y10S203/00; Y10S203/19; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/2496; Y10T137/2559; Y10T137/2562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF HANDLING OVERHEAD VAPORS FROM A FRACTIONATION COLUMN WHICH COMPRISES: DIVIDING THE OVERHEAD VAPORS FROM A FRACTIONATION COLUMN INTO FIRST AND SECOND STREAMS, COOLING SAID FIRST STREAM TO CONDENSE VAPOR THEREIN, PASSING THE VAPORS IN SAID SECOND STREAM IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH THE MIXTURE OBTAINED BY THE FOLLOWING STEP, MIXING THE CONDENSED VAPORS IN THE FIRST STREAM WITH THE FLUID IN THE SECOND STREAM AFTER THE FOREGOING HEAT EXCHANGE STEP, PASSING A PORTION OF THE RESULTING MIXTURE TO THE UPPER REGION OF THE FRACTIONATION COLUMN AS EXTERNAL REFLUX, AND REMOVING THE REMAINDER OF THE RESULTING MIXTURE AS OVERHEAD PRODUCT.
Claim 2
Independent Claim
103 words
A METHOD OF HANDLING OVERHEAD VAPORS FROM A FRACTIONATION COLUMN WHICH COMPRISES: DIVIDING THE OVERHEAD VAPORS FROM A FRACTIONATION COLUMN INTO FIRST AND SECOND STREAMS, COOLING SAID FIRST STREAM TO CONDENSE VAPOR THEREIN, PASSING THE VAPORS IN SAID SECOND STREAM IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH THE MIXTURE OBTAINED BY THE FOLLOWING STEP, MIXING THE CONDENSED VAPORS IN THE FIRST STREAM WITH THE FLUID IN THE SECOND STREAM AFTER THE FOREGOING HEAT EXCHANGE STEP, PASSING A PORTION OF THE RESULTING MIXTURE TO THE UPPER REGION OF THE FRACTIONATION COLUMN AS EXTERNAL REFLUX, AND REMOVING THE REMAINDER OF THE RESULTING MIXTURE AS OVERHEAD PRODUCT.
References Cited (Backward Citations)
US1778921A
Cited
US1829846A
Cited
US2711992A
Cited
US2915462A
Cited
US3039941A
Cited
US3101595A
Cited
US3320159A
Cited
US3318373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |