Patent US2567252A successfully refreshed from Google Patents.
US2567252A
Expired / Lapsed
US
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Refining of hydrocarbons
Assignee: Anglo Iranian Oil Co Ltd
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Filing: 1949-07-20
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Granted: 1951-09-11
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Expires: 1969-07-20
Abstract
No abstract record available.
Inventors
- 👤 Strang Leslie Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:49
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A PROCESS FOR THE HYDROCATALYTIC DESULPHURIZATION OF SULPHUR-CONTAINING HYDROCARBON FEEDSTOCKS, CARRIED OUT IN A DESULPHURIZING ZONE IN THE PRESENCE OF HYDROGEN AND IN THE PRESENCE OF A DESULPHURIZATION CATALYST UNDER CONDITIONS OF HYDROGEN PARTIAL PRESSURE, FLOW-RATE, ELEVATED TEMPERATURE AND SUPER-ATOMOSPHERIC PRESSURE SELECTED TO EFFECT DESULPHURIZATION OF THE FEEDSTOCK WITHOUT ANY SUBSTANTIAL DEGREE OF CRACKING, THE STEPS COMPRISING MAINTAINING THE REACTION PRODUCT LEAVING THE DESULPHURIZATION ZONE AT SUBSTANTIALLY THE PRESSURE EMPLOYED IN THE REACTION ZONE AND REDUCING THE TEMPERATURE OF THE REACTION PRODUCT TO A SELECTED CONDENSIG TEMPERATUE AT WHICH THE REACTION PRODUCT, EXCEPT FOR A GASEOUS HYDROGEN FRACTION FOR RECYCLING CONTAINING VARYING PROPORTIONS OF HYDROGEN SULPHIDE AND METHANE WITH SMALL AMOUNTS OF OTHER HYDROCARBON GASES, IS CONDENSED; SEPARATING SAID UNCONDENSED GASES, HYDROGEN FRACTION FROM THE CONDENSATE UNDER THE AFORESAID CONDITIONS WHEREBY
Claim 2
Dependent Claim
132 words
IN A PROCESS FOR THE HYDROCATALYTIC DESULPHURIZATION OF SULPHUR-CONTAINING HYDROCARBON FEEDSTOCKS, CARRIED OUT IN A DESULPHURIZING ZONE IN THE PRESENCE OF HYDROGEN AND IN THE PRESENCE OF A DESULPHURIZATION CATALYST UNDER CONDITIONS OF HYDROGEN PARTIAL PRESSURE, FLOW-RATE, ELEVATED TEMPERATURE AND SUPER-ATOMOSPHERIC PRESSURE SELECTED TO EFFECT DESULPHURIZATION OF THE FEEDSTOCK WITHOUT ANY SUBSTANTIAL DEGREE OF CRACKING, THE STEPS COMPRISING MAINTAINING THE REACTION PRODUCT LEAVING THE DESULPHURIZATION ZONE AT SUBSTANTIALLY THE PRESSURE EMPLOYED IN THE REACTION ZONE AND REDUCING THE TEMPERATURE OF THE REACTION PRODUCT TO A SELECTED CONDENSIG TEMPERATUE AT WHICH THE REACTION PRODUCT, EXCEPT FOR A GASEOUS HYDROGEN FRACTION FOR RECYCLING CONTAINING VARYING PROPORTIONS OF HYDROGEN SULPHIDE AND METHANE WITH SMALL AMOUNTS OF OTHER HYDROCARBON GASES, IS CONDENSED; SEPARATING SAID UNCONDENSED GASES, HYDROGEN FRACTION FROM THE CONDENSATE UNDER THE AFORESAID CONDITIONS WHEREBY
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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |