Patent US3369998A successfully refreshed from Google Patents.
US3369998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high quality jet fuels by two-stage hydrogenation
Assignee: Gulf Research and Development Co
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Filing: 1965-04-30
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Granted: 1968-02-20
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Paul G Bercik
- 👤 Leslie D Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:40
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C10G65/08; C10G2400/00; C10G2400/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
THE METHOD OF MANUFACTURING A JET FUEL WHICH COMPRISES CONTACTING A STRAIGHT-RUN KEROSENE WITH HYDROGEN IN THE PRESENCE OF A HYDROGENATION CATALYST FORMED FROM AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBLAT, MOLYHBDENUM AND TUNGSTEN AND OXIDES AND SULFIDES THEREOF, ON AN INERT POROUS CARRIER, AT A TEMPERATURE OF 650 TO 750*F., AT A PRESSURE OF 500 TO 1500 P.S.I.G. WITH A LIQUID HOURLY SPACE VELOCITY OF 1.0 TO 6.0 AND A HYDROGEN CIRCULATION RATE OF 1,500 TO 10,000 STANDARD CUBIC FEET PER BARREL OF KEROSENE, CONTACTING THE RESULTANT PRODUCT WITH HYDROGEN IN THE PRESENCE OF A CATALYST WHICH COMPRISES A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, TUNGSTEN, MOLYBDENUM AND THE NOBLE METALS, SAID CATALYST BEING SUPPORTED ON A POROUS REFRACTORY SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND KIESELGUHR, AT A TEMPERATURE OF 450 TO 750*F. AT A PRESSURE OF 500 TO 1500 P.S.I.G., A LIQUID HOURLY SPACE VELOCITY OF 1.0 TO 10.0 AND A HYDROGEN CIRCULATION RATE OF 2,000 TO 10,000 STANDARD CUBIC FEED PER BARREL OF SAID PRODUCT OF THE FIRST STAGE, THE COMBINATION OF CONDITIONS BEING SELECTED TO PRODUCE A SUPERIOR JET FUEL HAVING A LUMINOMETER NUMBER OF AT LEAST 75.
Claim 2
Independent Claim
203 words
THE METHOD OF MANUFACTURING A JET FUEL WHICH COMPRISES CONTACTING A STRAIGHT-RUN KEROSENE WITH HYDROGEN IN THE PRESENCE OF A HYDROGENATION CATALYST FORMED FROM AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBLAT, MOLYHBDENUM AND TUNGSTEN AND OXIDES AND SULFIDES THEREOF, ON AN INERT POROUS CARRIER, AT A TEMPERATURE OF 650 TO 750*F., AT A PRESSURE OF 500 TO 1500 P.S.I.G. WITH A LIQUID HOURLY SPACE VELOCITY OF 1.0 TO 6.0 AND A HYDROGEN CIRCULATION RATE OF 1,500 TO 10,000 STANDARD CUBIC FEET PER BARREL OF KEROSENE, CONTACTING THE RESULTANT PRODUCT WITH HYDROGEN IN THE PRESENCE OF A CATALYST WHICH COMPRISES A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, TUNGSTEN, MOLYBDENUM AND THE NOBLE METALS, SAID CATALYST BEING SUPPORTED ON A POROUS REFRACTORY SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND KIESELGUHR, AT A TEMPERATURE OF 450 TO 750*F. AT A PRESSURE OF 500 TO 1500 P.S.I.G., A LIQUID HOURLY SPACE VELOCITY OF 1.0 TO 10.0 AND A HYDROGEN CIRCULATION RATE OF 2,000 TO 10,000 STANDARD CUBIC FEED PER BARREL OF SAID PRODUCT OF THE FIRST STAGE, THE COMBINATION OF CONDITIONS BEING SELECTED TO PRODUCE A SUPERIOR JET FUEL HAVING A LUMINOMETER NUMBER OF AT LEAST 75.
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |