Patent US2769754A successfully refreshed from Google Patents.
US2769754A
Expired / Lapsed
US
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Process for hydrodesulfurization of coker products
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-05-03
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Granted: 1956-11-06
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Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Sumner B Sweetser
- 👤 Weikart John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:01
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C10G69/00; C10G69/02; C10G69/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
PROCESS FOR THE HYDRODESULFURIZATION OF HYDROCARBON CONSTITUENTS BOILING IN THE MOTOR FUEL BOILING RANGE AND HYDROCARBON CONSTITUENTS BOILING IN THE GAS OIL BOILING RANGE, BOTH OF WHICH ARE DERIVED BY THE COKING OF HEAVY RESIDUAL PETROLEUM FRACTIONS, WHICH COMPRISES PASSING A COMBINED STREAM OF THESE CONSTITUENTS AND ADDED HYDROGEN THROUGH AN INITIAL HYDRODESULFURIZATION ZONE IN A MIXED LIQUID-GAS PHASE OPERATION, MAINTAINING SAID INITIAL ZONE AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 650* TO 700* F., WITHDRAWING THE PRODUCT FROM SAID INITIAL ZONE AND PASSING THE SAME TO A HOT SEPARATION ZONE WHEREIN HYROCARBONS CONSTITUENTS BOILING BELOW ABOUT 400* TO 750* F. ARE SEGREGATED AS A VAPOR PHASE, PASSING SAID VAPOR PHASE TO A SEPARATOR AND REMOVING HYDROGEN THEREFROM, REMOVING FROM SAID HOT SEPARATION ZONE A LIQUID PHASE COMPRISING HYDROCARBON CONSTITUENTS BOILING ABOVE ABOUT 400* TO 750* F., AND PASSING LIQUID PHASE BY ITSELF, TOGETHER WITH ADDED HYDROGEN,
Claim 2
Dependent Claim
149 words
PROCESS FOR THE HYDRODESULFURIZATION OF HYDROCARBON CONSTITUENTS BOILING IN THE MOTOR FUEL BOILING RANGE AND HYDROCARBON CONSTITUENTS BOILING IN THE GAS OIL BOILING RANGE, BOTH OF WHICH ARE DERIVED BY THE COKING OF HEAVY RESIDUAL PETROLEUM FRACTIONS, WHICH COMPRISES PASSING A COMBINED STREAM OF THESE CONSTITUENTS AND ADDED HYDROGEN THROUGH AN INITIAL HYDRODESULFURIZATION ZONE IN A MIXED LIQUID-GAS PHASE OPERATION, MAINTAINING SAID INITIAL ZONE AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 650* TO 700* F., WITHDRAWING THE PRODUCT FROM SAID INITIAL ZONE AND PASSING THE SAME TO A HOT SEPARATION ZONE WHEREIN HYROCARBONS CONSTITUENTS BOILING BELOW ABOUT 400* TO 750* F. ARE SEGREGATED AS A VAPOR PHASE, PASSING SAID VAPOR PHASE TO A SEPARATOR AND REMOVING HYDROGEN THEREFROM, REMOVING FROM SAID HOT SEPARATION ZONE A LIQUID PHASE COMPRISING HYDROCARBON CONSTITUENTS BOILING ABOVE ABOUT 400* TO 750* F., AND PASSING LIQUID PHASE BY ITSELF, TOGETHER WITH ADDED HYDROGEN,
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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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |