US2768932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrofined petroleum distillates with copper
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-08-17
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Granted: 1956-10-30
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Expires: 1973-08-17
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey P Richard
- 👤 Stein James
- 👤 Peter G B Hobsbawn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
C; C10; C10G; C10G29/00; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
THE PROCESS OF TREATING HYDROFIXED PETROLEUM DISTILLATES CONTAINING SULFUR WITH A COPPER-CONTAINING MATERIAL TO REDUCE THE SULFUR CONTENT OF SAID DISTILLATE, COMPRISING ING VAPOR IN A REACTION ZONE AT A TEMPERATURE OF NOT MORE THAN ABOUT 350* C. WITH A FINELY DIVIDED COPPER-CONTAINING MATERIAL SELECTED FROM THE GROUP CONSISTING OF METALLIC COPPER, COPPER ALLOYS, AND CUPRIC OXIDE, WITHDRAWING PETROLEUM VAPOR OF REDUCED SULFUR CONTENT FROM SAID REACTION ZONE, AND SUBSEQUENTLY REGENERATING THE SPENT COPPER-CONTAINING MATERIAL IN SAID REACTION ZONE BY CONTACTING SAID SPENT MATERIAL AT A TEMPERATURE OF FROM ABOUT 400* C. TO 500* C. AND AT SUBSTANTIALLY ATMOSPHERIC PRESSURE WITH AN OXIDIZING GAS COMPRISING AIR AND A DILUENT, WHEREBY THE PARTIAL PRESSURE OF OXYGEN IN SAID OXIDIZING GAS IS SUBSTANTIALLY REDUCED, AND SUBSEQUENTLY RE-USING THE REGENERATED COPPER-CONTAINING MATERIAL TO CONTACT ADDITIONAL SULFUR-CONTAINING PETROLEUM DISTILLATE AS AFORESAID.
Claim 2
Dependent Claim
137 words
THE PROCESS OF TREATING HYDROFIXED PETROLEUM DISTILLATES CONTAINING SULFUR WITH A COPPER-CONTAINING MATERIAL TO REDUCE THE SULFUR CONTENT OF SAID DISTILLATE, COMPRISING ING VAPOR IN A REACTION ZONE AT A TEMPERATURE OF NOT MORE THAN ABOUT 350* C. WITH A FINELY DIVIDED COPPER-CONTAINING MATERIAL SELECTED FROM THE GROUP CONSISTING OF METALLIC COPPER, COPPER ALLOYS, AND CUPRIC OXIDE, WITHDRAWING PETROLEUM VAPOR OF REDUCED SULFUR CONTENT FROM SAID REACTION ZONE, AND SUBSEQUENTLY REGENERATING THE SPENT COPPER-CONTAINING MATERIAL IN SAID REACTION ZONE BY CONTACTING SAID SPENT MATERIAL AT A TEMPERATURE OF FROM ABOUT 400* C. TO 500* C. AND AT SUBSTANTIALLY ATMOSPHERIC PRESSURE WITH AN OXIDIZING GAS COMPRISING AIR AND A DILUENT, WHEREBY THE PARTIAL PRESSURE OF OXYGEN IN SAID OXIDIZING GAS IS SUBSTANTIALLY REDUCED, AND SUBSEQUENTLY RE-USING THE REGENERATED COPPER-CONTAINING MATERIAL TO CONTACT ADDITIONAL SULFUR-CONTAINING PETROLEUM DISTILLATE AS AFORESAID.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |