US3318804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid recovery
Assignee: Phillips Petroleum Co
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Filing: 1965-04-28
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Granted: 1967-05-09
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Expires: 1985-04-28
Abstract
No abstract record available.
Inventors
- 👤 Joe Van Pool
- 👤 George R Hettick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:28
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/30; B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4255
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
187 words
A METHOD FOR REMOVING A SOLVENT EMPLOYED IN THE REMOVAL OF ASPHALT FROM A CRUDE OIL, FROM A HYDROCARBON OIL FRACTION COMPRISING HEATING THE MIXTURE OF SOLVENT AND HYDROCARBON FRACTION, PASSING THE HEATED MIXTURE INTO A FIRST EVAPORATION ZONE MAINTAINED SUBSTANTIALLY AT THE SAME PRESSURE AS THE SOLVENT EXTRACTION OPERATION WHEREIN SAID MIXTURE WAS FORMED TO VAPORIZE A SUBSTANTIAL AMOUNT OF SAID SOLVENT TO FORM A VAPOROUS OVERHEAD FOR SAID FIRST ZONE, PASSING THE VAPOROUS OVERHEAD FROM SAID FIRST ZONE IN HEAT EXCHANGE RELATIONSHIP WITH THE KETTLE PRODUCT OF SAID FIRST ZONE TO SUBSTANTIALLY COMPLETELY CONDENSE SAID VAPOROUS OVERHEAD AND TO VAPORIZE RESIDUAL SOLVENT FROM SAID KETTLE PRODUCT, PASSING SAID KETTLE PRODUCT AFTER SAID HEAT EXCHANGE RELATIONSHIP CONTACTING INTO A SECOND ZONE MAINTAINED AT A SUBSTANTIALLY LOWER PRESSURE THAN SAID FIRST ZONE TO SEPARATE VAPOROUS SOLVENT FROM THE HYDROCARBON FRACTION PRESENT IN SAID KETTLE PRODUCT, REGULATING THE HEATING OF SAID MIXTURE IN RESPONSE TO THE RATIO OF FLOW RATES OF THE VAPOROUS OVERHEAD FROM SAID FIRST ZONE TO THE VAPOROUS SOLVENT OVERHEAD FROM SAID SECOND ZONE IN THE VOLUMETRIC RANGE OF FROM ABUT 0.8/1 TO ABOUT 1.2/1.
Claim 2
Independent Claim
187 words
A METHOD FOR REMOVING A SOLVENT EMPLOYED IN THE REMOVAL OF ASPHALT FROM A CRUDE OIL, FROM A HYDROCARBON OIL FRACTION COMPRISING HEATING THE MIXTURE OF SOLVENT AND HYDROCARBON FRACTION, PASSING THE HEATED MIXTURE INTO A FIRST EVAPORATION ZONE MAINTAINED SUBSTANTIALLY AT THE SAME PRESSURE AS THE SOLVENT EXTRACTION OPERATION WHEREIN SAID MIXTURE WAS FORMED TO VAPORIZE A SUBSTANTIAL AMOUNT OF SAID SOLVENT TO FORM A VAPOROUS OVERHEAD FOR SAID FIRST ZONE, PASSING THE VAPOROUS OVERHEAD FROM SAID FIRST ZONE IN HEAT EXCHANGE RELATIONSHIP WITH THE KETTLE PRODUCT OF SAID FIRST ZONE TO SUBSTANTIALLY COMPLETELY CONDENSE SAID VAPOROUS OVERHEAD AND TO VAPORIZE RESIDUAL SOLVENT FROM SAID KETTLE PRODUCT, PASSING SAID KETTLE PRODUCT AFTER SAID HEAT EXCHANGE RELATIONSHIP CONTACTING INTO A SECOND ZONE MAINTAINED AT A SUBSTANTIALLY LOWER PRESSURE THAN SAID FIRST ZONE TO SEPARATE VAPOROUS SOLVENT FROM THE HYDROCARBON FRACTION PRESENT IN SAID KETTLE PRODUCT, REGULATING THE HEATING OF SAID MIXTURE IN RESPONSE TO THE RATIO OF FLOW RATES OF THE VAPOROUS OVERHEAD FROM SAID FIRST ZONE TO THE VAPOROUS SOLVENT OVERHEAD FROM SAID SECOND ZONE IN THE VOLUMETRIC RANGE OF FROM ABUT 0.8/1 TO ABOUT 1.2/1.
Claim 3
Dependent Claim
326 words
APPARATUS FOR REMOVING A SOLVENT FROM A HYDROCARBON AND SOLVENT MIXTURE COMPRISING A HIGH-PRESSURE EVAPORATOR, CONDUIT MEANS FOR INTORUDICNG SAID MIXTURE INTO SAID HIGH-PRESSURE EVAPORATOR, A HEAT EXCHANGER, CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID HIGHPRESSURE EVAPORATOR THROUGH SAID HEAT EXCHANGER, CONDUIT MEANS FOR REMOVING A KETTLE PRODUCT FROM SAID HIGHPRESSURE EVAPORATOR THROUGH SAID HEAT EXCHANGER IN HEAT EXCHANGE RELATIONSHIP WITH SAID CONDUIT MEANS FOR REMOVING VAPORS OVERHEAD FROM SAID HIGH-PRESSURE EVAPORATOR, EXPANSION VALVE MEANS IN SAID JCONDUIT MEANS FOR REMOVING THE KETTLE PRODUCT FROM SAID HIGH-JPRESSURE EVAPORATOR, EXPANSION VALVE MEANS IN SAID CONDUIT MEANS FOR REMOVING VAPORS OVERHEAD FROM SAID HIGH-PRESSURE EVAPORATOR, EXPANSION VALVE MEANS IN SAID CONDUIT MEANS FOR REMOVING THE KETTLE PRODUCT FROM SAID HIGH-PRESSURE EVAPORATOR, SAID EXPANSION VALVE MEANS BEING ADAPTED TO LOWER THE PRESSURE ON SAID KETTLE PRODUCT BEFORE ENTRY OF SAME INTO SAID HEAT EXCHANGER, A LOW-PRESSURE VAPOR SEPARATOR, CONDUIT MEANS OPERATIVELY CONNECTED TO SAID HEAT EXCHANGER TO REMOVE THEREFROM THE KETTLE PRODUCT FROM SAID HIGHPRESSURE SEPARATOR THEREIN AND PASSING SAME INTO SAID LOW-PRESSURE VAPOR SEPARATOR, CONDUIT MEANS FOR REMOVING THE KETTLE PRODUCT OF SAID LOW-PRESSURE VAPOR SEPARATOR THEREFROM, CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID LOW-PRESSURE SEPARATOR, A FIRST FLOW CONTROLLER OPERATIVELY CONNECTED TO SAID CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID HIGH-PRESSURE EVAPORATOR, A SECOND FLOW CONTROLLER OPERATIVELY CONNECTED TO SAID CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID LOWPRESSURE SEPARATOR, A RATIO CONTROLLER, MEANS OPERATIVELY CONNECTING EACH OF SAID FIRST AND SECOND FLOW-RECORDERCONTROLLERS TO SAID RATIO CONTROLLER, A HEAT EXCHANGER OPERATIVELY CONNECTED WITH SAID CONDUIT MEANS FOR PASSING SAID LIQUID MIXTURE INTO SAID HIGH-PRESSURE EVAPORATOR, CONDUIT MEANS FOR PASSING A HEATING FLUID THROUGH SAID HEAT EXCHANGER, VALVE MEANS FOR CONTROLLING THE AMOUNT OF HEATING FLUID PASSING INTO SAID HEAT EXCHANGER AND MEANS OPERATIVELY CONNECTING SAID RATIO CONTROLLER AND SAID VALVE MEANS SO THAT SAID VALVE MEANS IS CONTROLLED AS TO ITS OPENING FOR ADMITTING HEATING FLUID TO SAID HEAT EXCHANGER BY SAID RATIO CONTROLLER.
Claim 4
Dependent Claim
326 words
APPARATUS FOR REMOVING A SOLVENT FROM A HYDROCARBON AND SOLVENT MIXTURE COMPRISING A HIGH-PRESSURE EVAPORATOR, CONDUIT MEANS FOR INTORUDICNG SAID MIXTURE INTO SAID HIGH-PRESSURE EVAPORATOR, A HEAT EXCHANGER, CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID HIGHPRESSURE EVAPORATOR THROUGH SAID HEAT EXCHANGER, CONDUIT MEANS FOR REMOVING A KETTLE PRODUCT FROM SAID HIGHPRESSURE EVAPORATOR THROUGH SAID HEAT EXCHANGER IN HEAT EXCHANGE RELATIONSHIP WITH SAID CONDUIT MEANS FOR REMOVING VAPORS OVERHEAD FROM SAID HIGH-PRESSURE EVAPORATOR, EXPANSION VALVE MEANS IN SAID JCONDUIT MEANS FOR REMOVING THE KETTLE PRODUCT FROM SAID HIGH-JPRESSURE EVAPORATOR, EXPANSION VALVE MEANS IN SAID CONDUIT MEANS FOR REMOVING VAPORS OVERHEAD FROM SAID HIGH-PRESSURE EVAPORATOR, EXPANSION VALVE MEANS IN SAID CONDUIT MEANS FOR REMOVING THE KETTLE PRODUCT FROM SAID HIGH-PRESSURE EVAPORATOR, SAID EXPANSION VALVE MEANS BEING ADAPTED TO LOWER THE PRESSURE ON SAID KETTLE PRODUCT BEFORE ENTRY OF SAME INTO SAID HEAT EXCHANGER, A LOW-PRESSURE VAPOR SEPARATOR, CONDUIT MEANS OPERATIVELY CONNECTED TO SAID HEAT EXCHANGER TO REMOVE THEREFROM THE KETTLE PRODUCT FROM SAID HIGHPRESSURE SEPARATOR THEREIN AND PASSING SAME INTO SAID LOW-PRESSURE VAPOR SEPARATOR, CONDUIT MEANS FOR REMOVING THE KETTLE PRODUCT OF SAID LOW-PRESSURE VAPOR SEPARATOR THEREFROM, CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID LOW-PRESSURE SEPARATOR, A FIRST FLOW CONTROLLER OPERATIVELY CONNECTED TO SAID CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID HIGH-PRESSURE EVAPORATOR, A SECOND FLOW CONTROLLER OPERATIVELY CONNECTED TO SAID CONDUIT MEANS FOR REMOVING OVERHEAD VAPORS FROM SAID LOWPRESSURE SEPARATOR, A RATIO CONTROLLER, MEANS OPERATIVELY CONNECTING EACH OF SAID FIRST AND SECOND FLOW-RECORDERCONTROLLERS TO SAID RATIO CONTROLLER, A HEAT EXCHANGER OPERATIVELY CONNECTED WITH SAID CONDUIT MEANS FOR PASSING SAID LIQUID MIXTURE INTO SAID HIGH-PRESSURE EVAPORATOR, CONDUIT MEANS FOR PASSING A HEATING FLUID THROUGH SAID HEAT EXCHANGER, VALVE MEANS FOR CONTROLLING THE AMOUNT OF HEATING FLUID PASSING INTO SAID HEAT EXCHANGER AND MEANS OPERATIVELY CONNECTING SAID RATIO CONTROLLER AND SAID VALVE MEANS SO THAT SAID VALVE MEANS IS CONTROLLED AS TO ITS OPENING FOR ADMITTING HEATING FLUID TO SAID HEAT EXCHANGER BY SAID RATIO CONTROLLER.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |