US2570974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydration of petroleum hydrocarbons
Assignee: Phillips Petroleum Co
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Filing: 1949-01-04
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Granted: 1951-10-09
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Expires: 1969-01-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Neuhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
C; C10; C10G; C10G33/00; B; B01; B01D; B01D53/00; B01D53/26; B01J; B01J20/00; C10G25/00; C10G25/12; C10G33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A METHOD FOR REGENERATING A MOISTURE LADEN SOLID DESICCANT COMPRISING HEATING A FLUID TO A MOISTURE DESORBING TEMPERATURE, SAID FLUID BEING NONPOLYMERIZABLE IN THE PRESENCE OF SAID SOLID DESICCANT AT SAID MOISTURE DESORBONG TEMPERATURE, PASSING SAID HEATED FLUID THROUGH A BODY OF SAID MOISTURE LADEN SOLID DESICCANT, COOLING MOSITURE LADEN HOT FLUID FROM SAID BODY OF DESICCANT TO A TEMPERATURE AT WHICH WATER SEPARATES AS A SEPARATE PHASE, SEPARATING WATER FROM SAID COOLED FLUID, HEATING SAID LAST STATED COOLED FLUID TO SAID MOISTURE DESORBING TEMPERATURE AND CONTINUING THIS OPERATION CYCLE UNTIL SAID MOISTURE LADEN DESICCANT IS FREE OF MOISTURE THEN FURTHER PASSING SEPARATED COOLED FLUID FROM THE WATER SEPARATION STEP THROUGH A BODY OF ACTIVE SOLID DESICCANT, AND FURTHER PASSING THE FLUID FORM SAID ACTIVE SOLID DESICCANT THROUGH THE FIRST MENTIONED BODY OF SOLID DESICCANT UNTIL THIS LAST MENTIONED DESICCANT HAS ACQUIRED A DESIRED MOISTURE ADSORBING TEMPERATURE.
Claim 2
Independent Claim
147 words
A METHOD FOR REGENERATING A MOISTURE LADEN SOLID DESICCANT COMPRISING HEATING A FLUID TO A MOISTURE DESORBING TEMPERATURE, SAID FLUID BEING NONPOLYMERIZABLE IN THE PRESENCE OF SAID SOLID DESICCANT AT SAID MOISTURE DESORBONG TEMPERATURE, PASSING SAID HEATED FLUID THROUGH A BODY OF SAID MOISTURE LADEN SOLID DESICCANT, COOLING MOSITURE LADEN HOT FLUID FROM SAID BODY OF DESICCANT TO A TEMPERATURE AT WHICH WATER SEPARATES AS A SEPARATE PHASE, SEPARATING WATER FROM SAID COOLED FLUID, HEATING SAID LAST STATED COOLED FLUID TO SAID MOISTURE DESORBING TEMPERATURE AND CONTINUING THIS OPERATION CYCLE UNTIL SAID MOISTURE LADEN DESICCANT IS FREE OF MOISTURE THEN FURTHER PASSING SEPARATED COOLED FLUID FROM THE WATER SEPARATION STEP THROUGH A BODY OF ACTIVE SOLID DESICCANT, AND FURTHER PASSING THE FLUID FORM SAID ACTIVE SOLID DESICCANT THROUGH THE FIRST MENTIONED BODY OF SOLID DESICCANT UNTIL THIS LAST MENTIONED DESICCANT HAS ACQUIRED A DESIRED MOISTURE ADSORBING TEMPERATURE.
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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |