Patent US4152414A successfully refreshed from Google Patents.
US2885352A
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Process for hydrodesulfurization employing a platinum-alumina catalyst
Assignee: ExxonMobil Oil Corp
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Filing: 1953-06-10
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Granted: 1959-05-05
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Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Frank G Ciapetta
- 👤 Harry L Coonradt
- 👤 William E Garwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:52
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A DESULFURIZATION PROCESS WHICH COMPRISES CONTACTING A SULFUR CONTAINING PETROLEUM FRACTION WITH A CATALYST THAT CONSISTS OF BETWEEN ABOUT 0.05 PERCENT BY WEIGHT AND ABOUT 20 PERCENT BY WEIGHT OF A METAL SELECTED FROM THE GROUP CONSISTING OF METALS HAVING ATOMIC NEMBERS OF BETWEEN 44 AND 46 INCLUSIVE, AND BETWEEN 76 AND 78 INCLUSIVE, SUPPORTED ON AN INERT CARRIER, AT A TEMPERATURE VARYING BETWEEN ABOUT 500* F. AND ABOUT 850* F., IN THE PRESENCE OF HYDROGEN UNDER A PRESSURE VARYING BETWEEN ABOUT 100 POUNDS PER SQUARE INCH GAUGE AND ABOUT 3000 POUNDS PER SQUARE INCH GAUGE, AT A LIQUID HOURLY SPACE VELOCITY OF BETWEEN ABOUT 0.1 AND ABOUT 10, AND WITH A HYDROGEN TO HYDROCARBON MOLOR RATION VARYING BETWEEN ABOUT 1 AND ABOUT 80.
Claim 2
Dependent Claim
124 words
A DESULFURIZATION PROCESS WHICH COMPRISES CONTACTING A SULFUR CONTAINING PETROLEUM FRACTION WITH A CATALYST THAT CONSISTS OF BETWEEN ABOUT 0.05 PERCENT BY WEIGHT AND ABOUT 20 PERCENT BY WEIGHT OF A METAL SELECTED FROM THE GROUP CONSISTING OF METALS HAVING ATOMIC NEMBERS OF BETWEEN 44 AND 46 INCLUSIVE, AND BETWEEN 76 AND 78 INCLUSIVE, SUPPORTED ON AN INERT CARRIER, AT A TEMPERATURE VARYING BETWEEN ABOUT 500* F. AND ABOUT 850* F., IN THE PRESENCE OF HYDROGEN UNDER A PRESSURE VARYING BETWEEN ABOUT 100 POUNDS PER SQUARE INCH GAUGE AND ABOUT 3000 POUNDS PER SQUARE INCH GAUGE, AT A LIQUID HOURLY SPACE VELOCITY OF BETWEEN ABOUT 0.1 AND ABOUT 10, AND WITH A HYDROGEN TO HYDROCARBON MOLOR RATION VARYING BETWEEN ABOUT 1 AND ABOUT 80.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |