US3215618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrorefining of coke-forming hydrocarbon distillates
Assignee: Universal Oil Products Co
•
Filing: 1963-09-09
•
Granted: 1965-11-02
•
Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Charles H Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:51
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C10G65/06; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91; Y10S585/949; Y10S585/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR HYDROREFINING AN UNSATURATED, COKEFORMING HYDROCARBON DISTILLATE CONTAINING MONO-OLEFINIC AND DI-OLEFINIC HYDROCARBONS WHICH COMPRISES REACTING SAID HYDROCARBON DISTILLATE AND HYDROGEN IN A FIRST REACTION ZONE AT A TEMPERATURE LESS THAN ABOUT 500*F. AND THEREIN PARTIALLY HYDROGENATING SAID OLEFINIC HYDROCARBONS, INCREASING THE TEMPERATURE OF THE RESULTING EFFLUENT TO A LEVEL IN EXCESS OF ABOUT 500*F., COMPLETING THE SATURATION OF THE OLEFINIC HYDROCARBONS WITHADDITIONAL HYDROGEN IN A SECOND REACTION ZONE AND RECYCLING AT LEAST A PORTION OF THE EFFLUENT FROM SAID SECOND REACTION ZONE TO COMBINE WITH SAID HYDROCARBON DISTILLATE PRIOR TOREACTING THE SAME IN SAID FIRST REACTION ZONE.
Claim 2
Dependent Claim
99 words
A PROCESS FOR HYDROREFINING AN UNSATURATED, COKEFORMING HYDROCARBON DISTILLATE CONTAINING MONO-OLEFINIC AND DI-OLEFINIC HYDROCARBONS WHICH COMPRISES REACTING SAID HYDROCARBON DISTILLATE AND HYDROGEN IN A FIRST REACTION ZONE AT A TEMPERATURE LESS THAN ABOUT 500*F. AND THEREIN PARTIALLY HYDROGENATING SAID OLEFINIC HYDROCARBONS, INCREASING THE TEMPERATURE OF THE RESULTING EFFLUENT TO A LEVEL IN EXCESS OF ABOUT 500*F., COMPLETING THE SATURATION OF THE OLEFINIC HYDROCARBONS WITHADDITIONAL HYDROGEN IN A SECOND REACTION ZONE AND RECYCLING AT LEAST A PORTION OF THE EFFLUENT FROM SAID SECOND REACTION ZONE TO COMBINE WITH SAID HYDROCARBON DISTILLATE PRIOR TOREACTING THE SAME IN SAID FIRST REACTION ZONE.
References Cited (Backward Citations)
US2303075A
Cited
US2303118A
Cited
US2332572A
Cited
US2901417A
Cited
US2889264A
Cited
US2878179A
Cited
US2906784A
Cited
US2983676A
Cited
US2990431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |