Patent US2800431A successfully refreshed from Google Patents.
US2800431A
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Hydrocatalytic desulphurisation of petroleum hydrocarbons
Assignee: BP PLC
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Filing: 1954-11-16
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Granted: 1957-07-23
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Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 Porter Frederick Willi Bertram
- 👤 Northcott Roy Purdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:41
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/007; C10G45/00; C10G45/02; C10G45/24; C10G45/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR THE HYDROCATALYTIC DESULPHURISATION OF A PETROLEUM FEEDSTOCK, WHICH COMPRISES CONTACTING THE FEEDSTOCK IN REACTION ZONE IN THE PRESENCE OF EXTRANEOUS HYDROGEN WITH A SULPHUR-RESISTANT DEHYDROGENATIONHYDROGENATION CATAYLST UNDER AUTOFINING CONDITIONS OF TEMPERATURE AND SPACE VELOCITY AND ESTABLISHING IN THE REACTION ZONE FROM THE START BY MEANS OF EXTRANEOUS HYDROGEN A PRESSURE WHICH IS APPROXIMATELY EQUAL TO THE INITAL AUTOFINING EQUILIBRIUM PRESSURE TO BE OBTAINED ON AUTOFINING THE FEEDSTOCK UNDER THE SAME CONDITIONS OF CATALYST, TEMPERATURE AND SPACE VELOCITY.
Claim 2
Dependent Claim
80 words
A PROCESS FOR THE HYDROCATALYTIC DESULPHURISATION OF A PETROLEUM FEEDSTOCK, WHICH COMPRISES CONTACTING THE FEEDSTOCK IN REACTION ZONE IN THE PRESENCE OF EXTRANEOUS HYDROGEN WITH A SULPHUR-RESISTANT DEHYDROGENATIONHYDROGENATION CATAYLST UNDER AUTOFINING CONDITIONS OF TEMPERATURE AND SPACE VELOCITY AND ESTABLISHING IN THE REACTION ZONE FROM THE START BY MEANS OF EXTRANEOUS HYDROGEN A PRESSURE WHICH IS APPROXIMATELY EQUAL TO THE INITAL AUTOFINING EQUILIBRIUM PRESSURE TO BE OBTAINED ON AUTOFINING THE FEEDSTOCK UNDER THE SAME CONDITIONS OF CATALYST, TEMPERATURE AND SPACE VELOCITY.
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) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |