Patent US2925374A successfully refreshed from Google Patents.
US2925374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon treating process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-05-19
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Granted: 1960-02-16
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Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 Gilmore T Gwin
- 👤 Boyd N Hill
- 👤 Richard S Manne
- 👤 Nick P Peet
- 👤 George R L Shepherd
- 👤 Armand M Souby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C10G69/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A METHOD WHICH COMPRISES THE STEPS OF DEASPHALTING A PETROLEUM HYDROCARBON RESIDUUM FEED STOCK COMPOSED PRINCIPALLY OF COMPONENTS BOILING ABOUE ABOUT 950* F. WITH A LIQUEFIED NORMALLY GASEOUS HYDROCARBON UNDER CONDITIONS TO PROVIDE A DEASPHALTED OIL HAVING A CONRANDSON CARBON CONTENT OF ABOUT 4.5 TO 6.5, RECOVERING THE DEASPHALTED OIL, SUBJECTING THE RECOVERED DEASPHALTED OIL TO DHYDROGEN TREATMENT IN THE PRESENCE OF A COBALT MOLYDBATE CATALYST UNDER CONVERSION CONDITIONS INCLUDING A PRESSURE WITHIN THE RANGE OF ABOUT 700 TO 950 P.S.I.G., A TEMPERATURE WITHIN THE RANGE OF ABOUT 675* TO 775* F., A SPACE VELOCITY WITHIN THE RANGE OF ABOUT 1 TO 3V./V./HR., AND A HYDROGEN CHARGE RATE OF ABOUT 400 TO 2000 CUBIC FEET OF HYDROGEN PER BARREL OF DEASPHALTED OIL AND RECOVERING AS THE LIQUID PRODUCT FROM THE HYDROTREATING STEP A CATALYTIC CRACKING FEED STOCK HAVING CONRADSON CARBON CONTENT OF NOT MORE THAN ABOUT 4 WEIGHT PERCENT.
Claim 2
Independent Claim
149 words
A METHOD WHICH COMPRISES THE STEPS OF DEASPHALTING A PETROLEUM HYDROCARBON RESIDUUM FEED STOCK COMPOSED PRINCIPALLY OF COMPONENTS BOILING ABOUE ABOUT 950* F. WITH A LIQUEFIED NORMALLY GASEOUS HYDROCARBON UNDER CONDITIONS TO PROVIDE A DEASPHALTED OIL HAVING A CONRANDSON CARBON CONTENT OF ABOUT 4.5 TO 6.5, RECOVERING THE DEASPHALTED OIL, SUBJECTING THE RECOVERED DEASPHALTED OIL TO DHYDROGEN TREATMENT IN THE PRESENCE OF A COBALT MOLYDBATE CATALYST UNDER CONVERSION CONDITIONS INCLUDING A PRESSURE WITHIN THE RANGE OF ABOUT 700 TO 950 P.S.I.G., A TEMPERATURE WITHIN THE RANGE OF ABOUT 675* TO 775* F., A SPACE VELOCITY WITHIN THE RANGE OF ABOUT 1 TO 3V./V./HR., AND A HYDROGEN CHARGE RATE OF ABOUT 400 TO 2000 CUBIC FEET OF HYDROGEN PER BARREL OF DEASPHALTED OIL AND RECOVERING AS THE LIQUID PRODUCT FROM THE HYDROTREATING STEP A CATALYTIC CRACKING FEED STOCK HAVING CONRADSON CARBON CONTENT OF NOT MORE THAN ABOUT 4 WEIGHT PERCENT.
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) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |