Patent US3779256A successfully refreshed from Google Patents.
US3017344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Serial reforming of hydrocarbons
Assignee: Texaco Inc
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Filing: 1958-05-05
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Granted: 1962-01-16
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Robert A Woodle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:39
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A PROCESS FOR IMPROVING THE OCTANE NUMBER OF A PETROLEUM NAPHTHA IN WHICH A FULL RANGE PETROLEUM NAPHTHA IS REFORMED BY BEING PASSED SERIALLY WITH HYDROGEN THROUGH AT LEAST THREE REFORMING REACTORS CONTAINING A PLATINUM REFORMING CATALYST AT A TEMPERATURE BETWEEN 850 AND 1100* F. AND A PRESSURE BETWEEN 200 AND 700 P.S.I.G., THE STEPS WHICH COMPRISE SEPARATING THE PARTIALLY REFORMED FULL RANGE NAPHTHA PRIOR TO THE FINAL CATALYTIC REACTOR INTO A LIGHT NAPHTHA FRACTION HAVING A FINAL BOILING POINT WITHIN THE RANGE OF 200-240*F. AND A HEAVY NAPHTHA FRACTION HAVING AN INITIAL BOILING POINT WITHIN THE RANGE OF 200-240*F., CONTACTING SAID LIGHT NAPHTHA FRACTION WITH A CHROMIA-ALUMINA DEHYDROGENATION CATALYST
Claim 2
Dependent Claim
111 words
IN A PROCESS FOR IMPROVING THE OCTANE NUMBER OF A PETROLEUM NAPHTHA IN WHICH A FULL RANGE PETROLEUM NAPHTHA IS REFORMED BY BEING PASSED SERIALLY WITH HYDROGEN THROUGH AT LEAST THREE REFORMING REACTORS CONTAINING A PLATINUM REFORMING CATALYST AT A TEMPERATURE BETWEEN 850 AND 1100* F. AND A PRESSURE BETWEEN 200 AND 700 P.S.I.G., THE STEPS WHICH COMPRISE SEPARATING THE PARTIALLY REFORMED FULL RANGE NAPHTHA PRIOR TO THE FINAL CATALYTIC REACTOR INTO A LIGHT NAPHTHA FRACTION HAVING A FINAL BOILING POINT WITHIN THE RANGE OF 200-240*F. AND A HEAVY NAPHTHA FRACTION HAVING AN INITIAL BOILING POINT WITHIN THE RANGE OF 200-240*F., CONTACTING SAID LIGHT NAPHTHA FRACTION WITH A CHROMIA-ALUMINA DEHYDROGENATION CATALYST
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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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |