Patent US3072561A successfully refreshed from Google Patents.
US3072561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blocked hydrocarbon conversion operation permitting reduced tankage
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-12-30
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Granted: 1963-01-08
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Cahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:33
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN A PROCESS WHEREIN HYDROCARBONS ARE CONVERTED BY THE ALTERNATE FEEDING TO AND CONVERSION IN A CONVERSION ZONE OF A FIRST STREAM AND A SECOND STREAM OF HYDROCARBONS, THE INITIAL BOILING POINT OF SAID SECOND STREAM BEING AT LEAST 40*F. LOWER THAN THE FINAL BOILING POINT OF SAID FIRST STREAM WHEREIN A FREE HYDROGEN CONTAINING GAS IS ALSO INTRODUCED INTO SAID CONVERSION ZONE, THE IMPROVEMENT WHICH COMPRISES FRACTIONATING A NAPHTHA BOILING IN THE RANGE OF ABOUT C4 TO 430*F. TO SEPARATE THE SAME INTO A HEART-CUT FRACTION HAVING A BOILING RANGE OF ABOUT 200 TO 300*F., A LIGHT ENDS FRACTION AND A HEAVY ENDS FRACTION, ALTERNATELY COMBINING THE LIGHT ENDS FRACTION WITH THE HEART-CUT FRACTION TO FORM SAID FIRST STREAM AND CHARGING THE SAME TO THE HYDROCARBON CONVERSION ZONE WHILE SIMULTANEOUSLY PASSING THE HEAVY ENDS FRACTION TO STORAGE AND COLLECTING THE PRODUCTS OF SAID FIRST STREAM CONVERSION, AND THEN COMBINING THE HEAVY ENDS FRACTION WITH THE HEART-CUT FRACTION TO FORM SAID SECOND STREAM AND CHARGING THE SAME TO THE HYDROCARBON CONVERSION
Claim 2
Dependent Claim
171 words
IN A PROCESS WHEREIN HYDROCARBONS ARE CONVERTED BY THE ALTERNATE FEEDING TO AND CONVERSION IN A CONVERSION ZONE OF A FIRST STREAM AND A SECOND STREAM OF HYDROCARBONS, THE INITIAL BOILING POINT OF SAID SECOND STREAM BEING AT LEAST 40*F. LOWER THAN THE FINAL BOILING POINT OF SAID FIRST STREAM WHEREIN A FREE HYDROGEN CONTAINING GAS IS ALSO INTRODUCED INTO SAID CONVERSION ZONE, THE IMPROVEMENT WHICH COMPRISES FRACTIONATING A NAPHTHA BOILING IN THE RANGE OF ABOUT C4 TO 430*F. TO SEPARATE THE SAME INTO A HEART-CUT FRACTION HAVING A BOILING RANGE OF ABOUT 200 TO 300*F., A LIGHT ENDS FRACTION AND A HEAVY ENDS FRACTION, ALTERNATELY COMBINING THE LIGHT ENDS FRACTION WITH THE HEART-CUT FRACTION TO FORM SAID FIRST STREAM AND CHARGING THE SAME TO THE HYDROCARBON CONVERSION ZONE WHILE SIMULTANEOUSLY PASSING THE HEAVY ENDS FRACTION TO STORAGE AND COLLECTING THE PRODUCTS OF SAID FIRST STREAM CONVERSION, AND THEN COMBINING THE HEAVY ENDS FRACTION WITH THE HEART-CUT FRACTION TO FORM SAID SECOND STREAM AND CHARGING THE SAME TO THE HYDROCARBON CONVERSION
References Cited (Backward Citations)
US206700A
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US2335684A
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US2636909A
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US2255399A
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US2249461A
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US3002917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |