Patent US3310484A successfully refreshed from Google Patents.
US3310484A
Expired / Lapsed
US
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Thermal cracking in an oxygen free atmosphere
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1965-05-20
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Granted: 1967-03-21
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Expires: 1985-05-20
Abstract
No abstract record available.
Inventors
- 👤 Mason Ralph Burgess
- 👤 Hamner Glen Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:07
CPC Classifications
C; C10; C10G; C10G9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A NONCATALYTIC, LIQUID-PHASE PROCESS FOR CONVERTING HEAVY HIGH BOILING RESIDUA HAVING A RELATIVELY HIGH CONTENT OF SULFUR AND METALS TO LOWER BOILING GAS OILS HAVING REDUCED SULFUR AND METALS CONTENT CONSISTING ESSENTIALLY OF THE STEPS OF (A) HEATING AN INTIMATE BLEND OF SAID RESIDUA AND 0.5:1 TO 5:1 VOLUMES OF AN AROMATIC SOLVENT BOILING IN THE RANGE OF 150-800*F. AT A TEMPERATURE IN THE RANGE OF 650-900*F. AND A RESIDENCE TIME OF 0.1 TO 6 HOURS AND (B) SEPARATING A LOW SULFUR, LOW METALS GAS OIL FRACTION FROM THE REACTION MIXTURE, SAID STEPS (A) AND (B) BEING CARRIED OUT IN AN ESSENTIALLY OXYGEN-FREE ATMOSPHERE.
Claim 2
Dependent Claim
104 words
A NONCATALYTIC, LIQUID-PHASE PROCESS FOR CONVERTING HEAVY HIGH BOILING RESIDUA HAVING A RELATIVELY HIGH CONTENT OF SULFUR AND METALS TO LOWER BOILING GAS OILS HAVING REDUCED SULFUR AND METALS CONTENT CONSISTING ESSENTIALLY OF THE STEPS OF (A) HEATING AN INTIMATE BLEND OF SAID RESIDUA AND 0.5:1 TO 5:1 VOLUMES OF AN AROMATIC SOLVENT BOILING IN THE RANGE OF 150-800*F. AT A TEMPERATURE IN THE RANGE OF 650-900*F. AND A RESIDENCE TIME OF 0.1 TO 6 HOURS AND (B) SEPARATING A LOW SULFUR, LOW METALS GAS OIL FRACTION FROM THE REACTION MIXTURE, SAID STEPS (A) AND (B) BEING CARRIED OUT IN AN ESSENTIALLY OXYGEN-FREE ATMOSPHERE.
References Cited (Backward Citations)
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US2749288A
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US2756186A
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US2782145A
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US2953513A
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US2989461A
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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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |