US2882221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking asphaltic materials
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-02-28
•
Granted: 1959-04-14
•
Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 James A Dinwiddie
- 👤 Max A Mosesman
- 👤 Charles L Thorpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:12
CPC Classifications
C; C10; C10G; C10G47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A PROCESS FOR HYDROCRACKING AND DESULFURIZING AN ASPHALTIC MATERIAL WHICH COMPRISES CONTACTING THE SAID ASPHALTIC MATERIAL WITH A FIXED BED OF CATALYST IN THE PRESENCE OF ADDED HYDROGEN UNDER CONVERSION CONDITIONS INCLUDING A TEMPERATURE WITHIN THE RANGE OF ABOUT 700* TO 1000* F., A PRESSURE WITHIN THE RANGE OF 100 TO 1000 P.S.I.G., AND A SPACE VELOCITY WITHIN THE RANGE OF ABOUT 0.5 TO 5 VOLUMES OF FEED PER VOLUME OF CATALYST PER HOUR, SAID CATALYST CONSISTING ESSENTIALLY OF AN ALUMINA BASE HAVING SUPPORTED THEREON OXYGEN-CONTAINING COMPOUNDS OF MOLYBDENUM AND COBALT WITHIN THE RANGE OF ABOUT 5 TO 20 WEIGHT PERCENT AND IN THE RANGE OF ABOUT 0.5 TO 10 WEIGHT, BASED ON THE TOTAL CATALYST, OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON AND MIXTURES THEREOF.
Claim 2
Dependent Claim
133 words
A PROCESS FOR HYDROCRACKING AND DESULFURIZING AN ASPHALTIC MATERIAL WHICH COMPRISES CONTACTING THE SAID ASPHALTIC MATERIAL WITH A FIXED BED OF CATALYST IN THE PRESENCE OF ADDED HYDROGEN UNDER CONVERSION CONDITIONS INCLUDING A TEMPERATURE WITHIN THE RANGE OF ABOUT 700* TO 1000* F., A PRESSURE WITHIN THE RANGE OF 100 TO 1000 P.S.I.G., AND A SPACE VELOCITY WITHIN THE RANGE OF ABOUT 0.5 TO 5 VOLUMES OF FEED PER VOLUME OF CATALYST PER HOUR, SAID CATALYST CONSISTING ESSENTIALLY OF AN ALUMINA BASE HAVING SUPPORTED THEREON OXYGEN-CONTAINING COMPOUNDS OF MOLYBDENUM AND COBALT WITHIN THE RANGE OF ABOUT 5 TO 20 WEIGHT PERCENT AND IN THE RANGE OF ABOUT 0.5 TO 10 WEIGHT, BASED ON THE TOTAL CATALYST, OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON AND MIXTURES THEREOF.
References Cited (Backward Citations)
US2227671A
Cited
US2369432A
Cited
US2638454A
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US2717855A
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US2690433A
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US2723943A
Cited
US2739132A
Cited
US2801208A
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US2768936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |