US2877176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing sulfur and aromatics from hydrocarbons using active carbon impregnated with alkali metals or oxides thereof as adsorbent
Assignee: Standard Oil Co
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Filing: 1956-09-20
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Granted: 1959-03-10
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Expires: 1976-09-20
Abstract
No abstract record available.
Inventors
- 👤 William F Wolff
- 👤 Hill Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:11
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR THE REMOVAL OF AROMATIC HYDROCARBONS AND ORGANIC SULFUR COMPOUNDS FROM HYDROCARBON OILS WHICH COMPRISES CONTACTING IN THE LIQUID PHASE AT A TEMING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBONS, ORGANIC SULFUR COMPOUNDS AND MIXTURES THEREOF WITH AN ACTIVATED CARBON ADSORDENT CONTAINING BETWEEN ABOUT 0.05 AND 0.2 PART BY WEIGHT OF AT LEAST ONE ALKALI COMPOUND SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, AND THE OXIDES THEREOF PER PART BY WEIGHT OF THE ACTIVATED THE ALKALI METAL-ACTIVATED CARBON ADSORBENT BEING PREPARED BY MIXING MOLTEN ALKALI METAL WITH THE ACTIVATED CARBON UNDER AN INERT ATMOSPHERE TO ABTAIN A DISPERSION OF ALKALI METAL UPON AND WITHIN THE ACTIVATED CARBON, AND THE ALKALI METAL OSIDE-ACTIVATED CARBON ADSORBENT BEING PREPARED BY CONTACTING THE ALKALI METAL-ACTIVATED CARBON ADSORBENT WITH FREE OXYGEN.
Claim 2
Dependent Claim
134 words
A PROCESS FOR THE REMOVAL OF AROMATIC HYDROCARBONS AND ORGANIC SULFUR COMPOUNDS FROM HYDROCARBON OILS WHICH COMPRISES CONTACTING IN THE LIQUID PHASE AT A TEMING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBONS, ORGANIC SULFUR COMPOUNDS AND MIXTURES THEREOF WITH AN ACTIVATED CARBON ADSORDENT CONTAINING BETWEEN ABOUT 0.05 AND 0.2 PART BY WEIGHT OF AT LEAST ONE ALKALI COMPOUND SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, AND THE OXIDES THEREOF PER PART BY WEIGHT OF THE ACTIVATED THE ALKALI METAL-ACTIVATED CARBON ADSORBENT BEING PREPARED BY MIXING MOLTEN ALKALI METAL WITH THE ACTIVATED CARBON UNDER AN INERT ATMOSPHERE TO ABTAIN A DISPERSION OF ALKALI METAL UPON AND WITHIN THE ACTIVATED CARBON, AND THE ALKALI METAL OSIDE-ACTIVATED CARBON ADSORBENT BEING PREPARED BY CONTACTING THE ALKALI METAL-ACTIVATED CARBON ADSORBENT WITH FREE OXYGEN.
References Cited (Backward Citations)
US2481300A
Cited
US2577824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |