US3225550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractional distillation control system
Assignee: Phillips Petroleum Co
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Filing: 1963-03-04
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Granted: 1965-12-28
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Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Carl S Kelley
- 👤 Robert D Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:45
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4238; F; F25; F25D; F25D31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR THE DISTILLATION OF A MULTICOMPONENT FEED STOCK IN A HEAT PUMP OPERATION COMPRISING INTRODUCING SAID FEED STOCK INTO A FRACTIONAL DISTILLATION ZONE AND FRACTIONALLY DISTILLING SAID FEED STOCK THEREIN, WITHDRAWING AN OVERHEAD VAPOROUS STREAM FROM SAID ZONE, COMPRESSING SAID STREAM WHEREIN THE COMPRESSED STREAM BECOMES HEATED, WITHDRAWING LIQUID KETTLE MATERIAL FROM SAID FRACTIONAL DISTILLATION ZONE, INDIRECTLY HEATING THE THUS WITHDRAWN KETTLE MATERIAL WITH THE HEATED COMPRESSED STREAM IN A FIRST INDIRECT HEAT EXCHANGE ZONE WHEREBY THE KETTLE MATERIAL BECOMES VAPORIZED AND THE COMPRESSED STEAM BECOMES COOLED AND PARTIALLY CONDENSED, RETURNING THE RESULTING CONDENSATE TO THE FRACTIONAL DISTILLATION ZONE AS REFLUX THEREFOR, PROMOTION VAPOR FLOW FROM THE LOWER PORTION OF SAID FRACTIONAL DISTILLATION ZONE UPWARDLY THROUGH SAID FRACTIONAL DISTILLATION ZONE
Claim 2
Dependent Claim
122 words
A PROCESS FOR THE DISTILLATION OF A MULTICOMPONENT FEED STOCK IN A HEAT PUMP OPERATION COMPRISING INTRODUCING SAID FEED STOCK INTO A FRACTIONAL DISTILLATION ZONE AND FRACTIONALLY DISTILLING SAID FEED STOCK THEREIN, WITHDRAWING AN OVERHEAD VAPOROUS STREAM FROM SAID ZONE, COMPRESSING SAID STREAM WHEREIN THE COMPRESSED STREAM BECOMES HEATED, WITHDRAWING LIQUID KETTLE MATERIAL FROM SAID FRACTIONAL DISTILLATION ZONE, INDIRECTLY HEATING THE THUS WITHDRAWN KETTLE MATERIAL WITH THE HEATED COMPRESSED STREAM IN A FIRST INDIRECT HEAT EXCHANGE ZONE WHEREBY THE KETTLE MATERIAL BECOMES VAPORIZED AND THE COMPRESSED STEAM BECOMES COOLED AND PARTIALLY CONDENSED, RETURNING THE RESULTING CONDENSATE TO THE FRACTIONAL DISTILLATION ZONE AS REFLUX THEREFOR, PROMOTION VAPOR FLOW FROM THE LOWER PORTION OF SAID FRACTIONAL DISTILLATION ZONE UPWARDLY THROUGH SAID FRACTIONAL DISTILLATION ZONE
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |