Patent US3001932A successfully refreshed from Google Patents.
US3001932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrocarbon oils
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-07-15
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Granted: 1961-09-26
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Expires: 1979-07-15
Abstract
No abstract record available.
Inventors
- 👤 Pietsch Robert Brooke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:03
CPC Classifications
C; C10; C10G; C10G61/00; C10G61/02; C10G61/04; C10G67/00; C10G67/02; C10G67/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN IMPROVED METHOD FOR UPGRADING HYDROCARBONS BOILING IN THE GAS OIL BOILING RANGE WHICH COMPRISES EXTRACTING AROMATICS IN THE GAS OIL BOILING RANGE FEED WITH A SUITABLE SOLVENT, STRIPPING RESIDUAL SOLVENT FROM THE RAFFINATE TO PRODUCE A LOW AROMATICS CONTENT RAFFINATE STREAM, REMOVING AND RECOVERING SOLVENT FROM THE AROMATICS-RICH EXTRACT, PASSING THE SOLVENT-FREE EXTRACT INTO A HYDROFINING ZONE CHARGED WITH AN ACTIVE HYDROFINING CATALYST OPERATING UNDER CONDITIONS SO AS TO OBTAIN SUBSTANTIAL CONVERSION OF AROMATICS TO NAPHTHENES OF TEMPERATURES OF FROM 600* TO 900*F., PRESSURES OF FROM 200 P.S.I.G. TO 1600 P.S.I.G. AND IN THE PRESENCE OF HYDROGEN-RICH TREAT GAS SUPPLIED AT RATES OF FROM 200 TO 6000 S.C.F./BARREL OF LIQUID OIL FEED.
Claim 2
Dependent Claim
113 words
AN IMPROVED METHOD FOR UPGRADING HYDROCARBONS BOILING IN THE GAS OIL BOILING RANGE WHICH COMPRISES EXTRACTING AROMATICS IN THE GAS OIL BOILING RANGE FEED WITH A SUITABLE SOLVENT, STRIPPING RESIDUAL SOLVENT FROM THE RAFFINATE TO PRODUCE A LOW AROMATICS CONTENT RAFFINATE STREAM, REMOVING AND RECOVERING SOLVENT FROM THE AROMATICS-RICH EXTRACT, PASSING THE SOLVENT-FREE EXTRACT INTO A HYDROFINING ZONE CHARGED WITH AN ACTIVE HYDROFINING CATALYST OPERATING UNDER CONDITIONS SO AS TO OBTAIN SUBSTANTIAL CONVERSION OF AROMATICS TO NAPHTHENES OF TEMPERATURES OF FROM 600* TO 900*F., PRESSURES OF FROM 200 P.S.I.G. TO 1600 P.S.I.G. AND IN THE PRESENCE OF HYDROGEN-RICH TREAT GAS SUPPLIED AT RATES OF FROM 200 TO 6000 S.C.F./BARREL OF LIQUID OIL FEED.
References Cited (Backward Citations)
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US2481921A
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US2671754A
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US2769753A
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US2911354A
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |