US2990364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization and demtrogenizaiton
Assignee: —
•
Filing: —
•
Granted: 1961-06-27
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Expires: 1978-06-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:29
CPC Classifications
—
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD FOR THE DESULFURIZATION AND DENITROGENIZATION OF AROMATIC HYDROCARBON-CONTAINING FRACTIONS PRODUCED FROM THE DESTRUCTIVE DISTILLATION OF COAL WHICH COMPRISES SUBJECTING SUCH A FRACTION SOLELY TO THERMAL CONVERSION IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE IN THE RANGE BETWEEN 850* F. AND 1350* F., A PRESSURE IN EXCESS OF 1000 POUNDS PER SQUARE INCH AND RANGING UP TO 10,000 POUNDS PER SQUARE INCH, FOR A TIME IN THE RANGE BETWEEN 1 AND 900 SECONDS, THE AMOUNT OF HYDROGEN RANGING BETWEEN 1.0 AND 20 MOLES OF HYDROGEN PER MOLE OF HYDROCARBON CHARGE, AND SEPARATING THE HYDROGEN SULFIDE AND AMMONIA PRODUCED DURING THE CONVERSION FROM THE HY-AND DROCARBON PRODUCTS OF THE CONVERSION REACTION.
Claim 2
Independent Claim
112 words
A METHOD FOR THE DESULFURIZATION AND DENITROGENIZATION OF AROMATIC HYDROCARBON-CONTAINING FRACTIONS PRODUCED FROM THE DESTRUCTIVE DISTILLATION OF COAL WHICH COMPRISES SUBJECTING SUCH A FRACTION SOLELY TO THERMAL CONVERSION IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE IN THE RANGE BETWEEN 850* F. AND 1350* F., A PRESSURE IN EXCESS OF 1000 POUNDS PER SQUARE INCH AND RANGING UP TO 10,000 POUNDS PER SQUARE INCH, FOR A TIME IN THE RANGE BETWEEN 1 AND 900 SECONDS, THE AMOUNT OF HYDROGEN RANGING BETWEEN 1.0 AND 20 MOLES OF HYDROGEN PER MOLE OF HYDROCARBON CHARGE, AND SEPARATING THE HYDROGEN SULFIDE AND AMMONIA PRODUCED DURING THE CONVERSION FROM THE HY-AND DROCARBON PRODUCTS OF THE CONVERSION REACTION.
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |