Patent US1800965A successfully refreshed from Google Patents.
Patent US2846356A successfully refreshed from Google Patents.
US2846356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrorefining followed by heat stabilizing
Assignee: Sunoco Inc
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Filing: 1955-10-11
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Granted: 1958-08-05
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Expires: 1975-10-11
Abstract
No abstract record available.
Inventors
- 👤 Ivor W Mills
- 👤 William E Bonnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:23
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
PROCESS FOR REFINING PETROLEUM WHICH COMPRISES: CONTACTING A PETROLEUM DISTILLATE FRACTION HAVING BOILING RANGE AT LEAST AS HIGH AS THAT OF GAS OIL AND HAVING A.P.I. GRAVITY NOT SUBSTANTIALLY GREATER THAN 40 WITH HYDROGEN AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE FROM 650* F. TO 750*F. AND A PRESSURE OF 1000 TO 2000 P. S. I. G. IN THE PRESENCE OF A HYDROGENATION CATALYST, SAID CONTACTING BEING PERFORMED UNDER CONDITIONS PROVIDING A PRODUCT HAVING IMPROVED OXIDATION STABILITY IN THE PRESENCE OF AN ANTIOXIDANT ADDITIVE AND ALSO HAVING CORROSIVE PROPERTIES WITH RESPECT TO COPPER; SEPARATING THE CONTACTED FRACTION FROM CATALYST; SUBSEQUENTLY SUBJECTING SAID FRACTION TO A TEMPERATURE WITHIN THE APPROXIMATE RANGE FROM 450*F. TO 650*F. FOR AT LEAST FIVE MINUTES IN THE ABSENCE OF A HYDROGENATION CATALYST, THEREBY TO OBTAIN A SUITABLY NON-CORROSIVE PRODUCT; AND REMOVING HYDROGEN SULFIDE FROM THE PRODUCT.
Claim 2
Dependent Claim
140 words
PROCESS FOR REFINING PETROLEUM WHICH COMPRISES: CONTACTING A PETROLEUM DISTILLATE FRACTION HAVING BOILING RANGE AT LEAST AS HIGH AS THAT OF GAS OIL AND HAVING A.P.I. GRAVITY NOT SUBSTANTIALLY GREATER THAN 40 WITH HYDROGEN AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE FROM 650* F. TO 750*F. AND A PRESSURE OF 1000 TO 2000 P. S. I. G. IN THE PRESENCE OF A HYDROGENATION CATALYST, SAID CONTACTING BEING PERFORMED UNDER CONDITIONS PROVIDING A PRODUCT HAVING IMPROVED OXIDATION STABILITY IN THE PRESENCE OF AN ANTIOXIDANT ADDITIVE AND ALSO HAVING CORROSIVE PROPERTIES WITH RESPECT TO COPPER; SEPARATING THE CONTACTED FRACTION FROM CATALYST; SUBSEQUENTLY SUBJECTING SAID FRACTION TO A TEMPERATURE WITHIN THE APPROXIMATE RANGE FROM 450*F. TO 650*F. FOR AT LEAST FIVE MINUTES IN THE ABSENCE OF A HYDROGENATION CATALYST, THEREBY TO OBTAIN A SUITABLY NON-CORROSIVE PRODUCT; AND REMOVING HYDROGEN SULFIDE FROM THE PRODUCT.
References Cited (Backward Citations)
GB418926A
Cited
US2717855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |