US2891901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination catalytic reforming-thermal reforming-fractionation process
Assignee: Universal Oil Products Co
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Filing: 1955-05-26
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Granted: 1959-06-23
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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
2026-11-04 05:25
CPC Classifications
C; C10; C10G; C10G61/00; C10G61/02; C10G61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS WHICH COMPRISES CATALYTICALLY REFORMING A GASOLINE FRACTION, SUBJECTING RESULTANT REFORMATE BOILING IN THE GASOLINE RANGE TO THERMAL NON-CATALYSTRIC REFORMING TO CONVERT PARAFFINS TO OLEFINS, SUBJECTING NORMALLY LIQUID PRODUCTS OF THE THERMAL REFORMING TO SOLVENT EXTRACTION TO SEPARATE AROMATICS AND OLRFINS FROM PARAFFINS, THEREBY FORMING A PREDOMINATLY PARAFFINIC RAFFINATE CONTAINING LOW BOILING OLEFINS AND HIGH BOILING AROMATICS, FRACTIONNATING THE RAFFINATE TO SPARATE THEEFORM AN INTERMEDIATE FRACTION HAVING AN INITINAL BOILING POINT WITHIN THE RANGE OF FROM ABOUT 150* TO ABOUT 250* F. AND AN END POINT WITHION THE RANGE OF FROM ABOUT 350* F. TO ABOUT 425* F., AND SUPPLYING SAID INTERMEDIATE FRACTION TO CATALYTIC REFORMING STEP.
Claim 2
Dependent Claim
108 words
A PROCESS WHICH COMPRISES CATALYTICALLY REFORMING A GASOLINE FRACTION, SUBJECTING RESULTANT REFORMATE BOILING IN THE GASOLINE RANGE TO THERMAL NON-CATALYSTRIC REFORMING TO CONVERT PARAFFINS TO OLEFINS, SUBJECTING NORMALLY LIQUID PRODUCTS OF THE THERMAL REFORMING TO SOLVENT EXTRACTION TO SEPARATE AROMATICS AND OLRFINS FROM PARAFFINS, THEREBY FORMING A PREDOMINATLY PARAFFINIC RAFFINATE CONTAINING LOW BOILING OLEFINS AND HIGH BOILING AROMATICS, FRACTIONNATING THE RAFFINATE TO SPARATE THEEFORM AN INTERMEDIATE FRACTION HAVING AN INITINAL BOILING POINT WITHIN THE RANGE OF FROM ABOUT 150* TO ABOUT 250* F. AND AN END POINT WITHION THE RANGE OF FROM ABOUT 350* F. TO ABOUT 425* F., AND SUPPLYING SAID INTERMEDIATE FRACTION TO CATALYTIC REFORMING STEP.
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) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |