Patent US2861037A successfully refreshed from Google Patents.
US2861037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroforming in two stages
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-07-29
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Granted: 1958-11-18
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Expires: 1973-07-29
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hemminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:02
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF HYDROFORMING A NAPHTHA CONTAINING SULFUR WHICH COMPRISES CONTACTING SAID NAPHTHA WITH A FLUIDIZED BED OF A DESULFURIZING CATALYST SELECTED FROM THE CLASS CONSISTING OF MOLYBDENUM OXIDE CARRIED ON ACTIVATED ALUMINA AND COBALT MOLYBDATE, IN THE PRESENCE OF ADDED HYDROGEN, AT ELEVATED TEMPERATURES AND PRESSURES FOR A SUFFICIENT PERIOD OF TIME TO CONVERT THE SULFUR CONTAINED IN THE SAID NAPHTHA TO VOLATILE SULFUR COMPOUNDS AND TO ACCOMPLISH 50-75% OF THE HYDROFORMING OPERATION, WITHDRAWING THE TREATED NAPHTHA FROM CONTACT WITH THE FLUIDIZED BED OF MOLYBDENUM OXIDE CATALYST, COOLING AND CONDENSING THE PRODUCT, RECOVERING A FRACTION BOILING SUBSTANTIALLY WITHIN THE RANGE ABOVE ABOUT 250*-350*F., CONTACTING THIS FRACTION, IN THE PRESENCE OF ADDED HYDROGEN, UNDER HYDROFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND CONTACT TIME WITH A PLATINUM
Claim 2
Independent Claim
125 words
THE METHOD OF HYDROFORMING A NAPHTHA CONTAINING SULFUR WHICH COMPRISES CONTACTING SAID NAPHTHA WITH A FLUIDIZED BED OF A DESULFURIZING CATALYST SELECTED FROM THE CLASS CONSISTING OF MOLYBDENUM OXIDE CARRIED ON ACTIVATED ALUMINA AND COBALT MOLYBDATE, IN THE PRESENCE OF ADDED HYDROGEN, AT ELEVATED TEMPERATURES AND PRESSURES FOR A SUFFICIENT PERIOD OF TIME TO CONVERT THE SULFUR CONTAINED IN THE SAID NAPHTHA TO VOLATILE SULFUR COMPOUNDS AND TO ACCOMPLISH 50-75% OF THE HYDROFORMING OPERATION, WITHDRAWING THE TREATED NAPHTHA FROM CONTACT WITH THE FLUIDIZED BED OF MOLYBDENUM OXIDE CATALYST, COOLING AND CONDENSING THE PRODUCT, RECOVERING A FRACTION BOILING SUBSTANTIALLY WITHIN THE RANGE ABOVE ABOUT 250*-350*F., CONTACTING THIS FRACTION, IN THE PRESENCE OF ADDED HYDROGEN, UNDER HYDROFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND CONTACT TIME WITH A PLATINUM
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |