Patent US2889273A successfully refreshed from Google Patents.
US2889273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrogen
Assignee: BP PLC
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Filing: 1956-04-27
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Granted: 1959-06-02
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Expires: 1976-04-27
Abstract
No abstract record available.
Inventors
- 👤 Northcott Roy Purdy
- 👤 Moy John Arthur Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:55
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1064; C01B2203/107; C01B2203/1082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A PROCESS FOR THE DESULPHURISATION OF PETROLEUM HYDROCARBONS, WHICH COMPRISES PASSING A PETROLEUM DISTILATE BOILING IN THE GAS OIL BOILING RANGE TO A FIRST REACTION ZONE WHEREIN IT IS CONTACTED IN THE PRESENCE OF HYDROGEN WITH A SULPHUR-RESISTANT HYDROGENATION CATALYST AT A TEMPERATURE IN THE RANGE 600*-850* F. AND AT A PRESSURE IN THE RANGE 100-1500 P.S.I.G. SUCH THAT ORGANICALLY COMBINED SULPH-GE 100-1500 P.S.I.G. SUCH THAT ORGANICALLY INTO HYDROGEN SULPHIDE, SEPARATING A DISTILLATE OF REDUCED SULPHUR CONTENT FROM THE PRODUCTS OF THE FIRST REACTION ZONE, PASSING SAID DESULPHURISED DISTILLATE TO A SECOND REACTION ZONE WHEREIN IT IS CONTACTED AT A TEMPERATURE OF 600*-800* F. AND A PRESSURE OF 50-500 P.S.I.G. AND IN THE PRESENCE OF HYDROGEN WITH A CATALYST CONSISTING ESSENTIALLY OF A PLATINUM GROUP METAL ON A METAL OXIDE SUPPORT, SUCH THAT HYDROGEN IS PRODUCED FROM SAID DESULPHURISED DISTILLATE WITHOUT ADVERSELY AFFECTING THE PROPERTIES OF THE DESULPHURISED DISTILLATE AS RESPECTS ITS SUITABILITY FOR NORMAL USES, SEPARATING A HYDROGEN-RICH GAS FROM THE PRODUCTS OF THE SECOND REACTION ZONE, AND RECYCLING SAID HYDROGEN-RICH GAS TO BOTH SAID REACTION ZONES.
Claim 2
Dependent Claim
178 words
A PROCESS FOR THE DESULPHURISATION OF PETROLEUM HYDROCARBONS, WHICH COMPRISES PASSING A PETROLEUM DISTILATE BOILING IN THE GAS OIL BOILING RANGE TO A FIRST REACTION ZONE WHEREIN IT IS CONTACTED IN THE PRESENCE OF HYDROGEN WITH A SULPHUR-RESISTANT HYDROGENATION CATALYST AT A TEMPERATURE IN THE RANGE 600*-850* F. AND AT A PRESSURE IN THE RANGE 100-1500 P.S.I.G. SUCH THAT ORGANICALLY COMBINED SULPH-GE 100-1500 P.S.I.G. SUCH THAT ORGANICALLY INTO HYDROGEN SULPHIDE, SEPARATING A DISTILLATE OF REDUCED SULPHUR CONTENT FROM THE PRODUCTS OF THE FIRST REACTION ZONE, PASSING SAID DESULPHURISED DISTILLATE TO A SECOND REACTION ZONE WHEREIN IT IS CONTACTED AT A TEMPERATURE OF 600*-800* F. AND A PRESSURE OF 50-500 P.S.I.G. AND IN THE PRESENCE OF HYDROGEN WITH A CATALYST CONSISTING ESSENTIALLY OF A PLATINUM GROUP METAL ON A METAL OXIDE SUPPORT, SUCH THAT HYDROGEN IS PRODUCED FROM SAID DESULPHURISED DISTILLATE WITHOUT ADVERSELY AFFECTING THE PROPERTIES OF THE DESULPHURISED DISTILLATE AS RESPECTS ITS SUITABILITY FOR NORMAL USES, SEPARATING A HYDROGEN-RICH GAS FROM THE PRODUCTS OF THE SECOND REACTION ZONE, AND RECYCLING SAID HYDROGEN-RICH GAS TO BOTH SAID REACTION ZONES.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |