US3354053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling heat supply and product purities in the operation of a distillation column
Assignee: Phillips Petroleum Co
•
Filing: 1966-12-27
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Granted: 1967-11-21
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Merion L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:38
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/425; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
IN A PROCESS WHEREIN A MULTICOMPONENT FEED STREAM IS HEATED IN A PREHEATER AND THE RESULTING HEATED FEED STREAM IS INTRODUCED INTO ONE OF SEVERAL TRAYS IN A FRACTIONAL DISTILLATION COLUMN AND SEPARATED THEREIN INTO A VAPOR STREAM AND A LIQUID PRODUCT STREAM HAVING A SPECIFIED PURITY, SAID VAPOR STREAM IS CONDENSED, SOME OF THE CONDENSED VAPOR STREAM IS YIELDED AS A DISTILLATE PRODUCT STREAM HAVING A SPECIFIED PURITY, AND HEAT IS SUPPLIED TO THE REBOILER OF SAID COLUMN, A CONTROL METHOD FOR SUPPLYING SUFFICIENT HEAT TO SAID COLUMN TO PRODUCE SAID PRODUCTS HAVING SPECIFIED PURITIES WHILE MINIMIZING THE COST OF SUPPLYING HEAT TO SAID PREHEATER AND REBOILER, SAID METHOD COMPRISING THE STEPS OF MEASURING PROCESS VARIABLES INDICATIVE OF THE FEED FLOW RATE OF SAID COLUMN; PRODUCING SIGNALS RESPONSIVE TO SAID MEASUREMENTS REPRESENTATIVE OF THE FEED FLOW RATE TO SAID COLUMN; ANALYZING SAID FEED STREAM TO DETERMINE THE CONCENTRATION OF COMPONENTS IN SAID FEED STREAM; PRODUCING SIGNALS REPRESENTATIVE OF THE CONCENTRATION OF AT LEAST ONE OF SAID SPECIFIED COMPONENTS; COMBINING SAID SIGNALS IN AN OPERATIONS COMPUTER BASED ON THE FOLLOWING EXPRESSION:
Claim 2
Dependent Claim
181 words
IN A PROCESS WHEREIN A MULTICOMPONENT FEED STREAM IS HEATED IN A PREHEATER AND THE RESULTING HEATED FEED STREAM IS INTRODUCED INTO ONE OF SEVERAL TRAYS IN A FRACTIONAL DISTILLATION COLUMN AND SEPARATED THEREIN INTO A VAPOR STREAM AND A LIQUID PRODUCT STREAM HAVING A SPECIFIED PURITY, SAID VAPOR STREAM IS CONDENSED, SOME OF THE CONDENSED VAPOR STREAM IS YIELDED AS A DISTILLATE PRODUCT STREAM HAVING A SPECIFIED PURITY, AND HEAT IS SUPPLIED TO THE REBOILER OF SAID COLUMN, A CONTROL METHOD FOR SUPPLYING SUFFICIENT HEAT TO SAID COLUMN TO PRODUCE SAID PRODUCTS HAVING SPECIFIED PURITIES WHILE MINIMIZING THE COST OF SUPPLYING HEAT TO SAID PREHEATER AND REBOILER, SAID METHOD COMPRISING THE STEPS OF MEASURING PROCESS VARIABLES INDICATIVE OF THE FEED FLOW RATE OF SAID COLUMN; PRODUCING SIGNALS RESPONSIVE TO SAID MEASUREMENTS REPRESENTATIVE OF THE FEED FLOW RATE TO SAID COLUMN; ANALYZING SAID FEED STREAM TO DETERMINE THE CONCENTRATION OF COMPONENTS IN SAID FEED STREAM; PRODUCING SIGNALS REPRESENTATIVE OF THE CONCENTRATION OF AT LEAST ONE OF SAID SPECIFIED COMPONENTS; COMBINING SAID SIGNALS IN AN OPERATIONS COMPUTER BASED ON THE FOLLOWING EXPRESSION:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |