Patent US1811319A successfully refreshed from Google Patents.
Patent US2915455A successfully refreshed from Google Patents.
US2915455A
Expired / Lapsed
US
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Combination catalytic reforming-catalytic dehydrogenation process
Assignee: Universal Oil Products Co
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Filing: 1955-05-26
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Granted: 1959-12-01
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Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 George R Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:29
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C10G; C10G61/00; C10G61/02; C10G61/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A PROCESS WHICH COMPRISES SUBJECTING HYDROGEN AND A GASOLINE FRACTION TO CATALYTIC REFORMING IN A REFORMING ZONE, INTRODUCING AT LEAST A PORTION OF THE EFFLUENT FROM SAID REFORMING ZONE TO A SEPATRATION ZONE, SEPARATELY WITHDRAWING FROM SAID SEPARATION ZONE A PREDOMINANTLY AROMATIC FRACTION AND A PREDOMINANTLY PARAFFINIC FRACTION CONTAINING HYDROCARBONS BOILING BETWEEN ABOUT 156* AND ABOUT 400*F., INTRODUCING AT LEAST A PORTION OF SAID PREDOMINANTYLY PARAFFINIC FRACTION TO A FRACTIONATION ZONE, SEPARATELY WITHDRAWING FROM SAID FRACTIONATION ZONE, AT LEAST A HIGH BOILING FRACTION HAVING AN END BOILING POINT OF ABOUT 400*F. AND A LOW BOILING FRACTION HAVING AN END BOILING POINT BETWEEN ABOUT 225* AND ABOUT 325*F., RECYCLING AT LEAST A PORTION OF SAID HIGH BOILING FRACTION TO SAID REFORMING ZONE, AND SUBJECTING AT LEAST A PORTION OF SAID LOW BOILING FRACTION TO CATALYTIC DEHYDROGENATION IN A DEHYDROGENATION ZONE AND RECOVERING THE EFFLUENT FROM SAID DEHYDRATION ZONE AT A TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 1000*F., A PRESSURE OF FROM ABOUT 50 TO ABOUT 2000 POUNDS PER SQUARE INCH AND A WEIGHT HOURLY SPACE VELOCITY OF FROM ABOUT 0.5 TO ABOUT 20 TO CONVERT PARAFFINS TO OLEFINS.
Claim 2
Dependent Claim
188 words
A PROCESS WHICH COMPRISES SUBJECTING HYDROGEN AND A GASOLINE FRACTION TO CATALYTIC REFORMING IN A REFORMING ZONE, INTRODUCING AT LEAST A PORTION OF THE EFFLUENT FROM SAID REFORMING ZONE TO A SEPATRATION ZONE, SEPARATELY WITHDRAWING FROM SAID SEPARATION ZONE A PREDOMINANTLY AROMATIC FRACTION AND A PREDOMINANTLY PARAFFINIC FRACTION CONTAINING HYDROCARBONS BOILING BETWEEN ABOUT 156* AND ABOUT 400*F., INTRODUCING AT LEAST A PORTION OF SAID PREDOMINANTYLY PARAFFINIC FRACTION TO A FRACTIONATION ZONE, SEPARATELY WITHDRAWING FROM SAID FRACTIONATION ZONE, AT LEAST A HIGH BOILING FRACTION HAVING AN END BOILING POINT OF ABOUT 400*F. AND A LOW BOILING FRACTION HAVING AN END BOILING POINT BETWEEN ABOUT 225* AND ABOUT 325*F., RECYCLING AT LEAST A PORTION OF SAID HIGH BOILING FRACTION TO SAID REFORMING ZONE, AND SUBJECTING AT LEAST A PORTION OF SAID LOW BOILING FRACTION TO CATALYTIC DEHYDROGENATION IN A DEHYDROGENATION ZONE AND RECOVERING THE EFFLUENT FROM SAID DEHYDRATION ZONE AT A TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 1000*F., A PRESSURE OF FROM ABOUT 50 TO ABOUT 2000 POUNDS PER SQUARE INCH AND A WEIGHT HOURLY SPACE VELOCITY OF FROM ABOUT 0.5 TO ABOUT 20 TO CONVERT PARAFFINS TO OLEFINS.
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |