Patent US2856347A successfully refreshed from Google Patents.
US2856347A
Expired / Lapsed
US
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Process for purification of reforming charge stock
Assignee: Standard Oil Co
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Filing: 1954-07-28
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Granted: 1958-10-14
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Expires: 1974-07-28
Abstract
No abstract record available.
Inventors
- 👤 Herman S Seelig
- 👤 Alfred A Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:27
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN THE REFORMING OF HYDROCARBON CHARGE STOCKS IN THE PRESENCE OF A PLATINUM-ALUMINA REFORMING CATALYST AND HYDROGEN, A PROCESS FOR PURIFYING THE CHARGE STOCK WHICH COMPRISES TREATING THE CHARGE STOCK IN THE PRESENCE OF A HYDROGENATION CATALYST AND HYDROGEN AT AN ELEVATED TEMPERATURE WHEREBY SUBSTANTIALLY ALL OXYGEN AND SULFUR COMPOUNDS IN THE CHARGE ARE CONVERTED TO WATER VAPOR AND HYDROGEN SULFIDE RESPECTIVELY AND CONTACTING THE TOTAL EFFLUENT FROM SAID TREATING OPERATION IN THE VAPOR PHASE WITH SOLID PARTICLE FORM CALCIUM OXIDE UNDER CONDITIONS EFFECTING SUBSTANTIAL REMOVAL OF WATER VAPOR AND HYDROGEN SULFIDE FROM THE EFFLUENT.
Claim 2
Dependent Claim
95 words
IN THE REFORMING OF HYDROCARBON CHARGE STOCKS IN THE PRESENCE OF A PLATINUM-ALUMINA REFORMING CATALYST AND HYDROGEN, A PROCESS FOR PURIFYING THE CHARGE STOCK WHICH COMPRISES TREATING THE CHARGE STOCK IN THE PRESENCE OF A HYDROGENATION CATALYST AND HYDROGEN AT AN ELEVATED TEMPERATURE WHEREBY SUBSTANTIALLY ALL OXYGEN AND SULFUR COMPOUNDS IN THE CHARGE ARE CONVERTED TO WATER VAPOR AND HYDROGEN SULFIDE RESPECTIVELY AND CONTACTING THE TOTAL EFFLUENT FROM SAID TREATING OPERATION IN THE VAPOR PHASE WITH SOLID PARTICLE FORM CALCIUM OXIDE UNDER CONDITIONS EFFECTING SUBSTANTIAL REMOVAL OF WATER VAPOR AND HYDROGEN SULFIDE FROM THE EFFLUENT.
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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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |