US3586619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion and desulfurization of hydrocarbonaceous black oils
Assignee: Universal Oil Products Co
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Filing: 1968-10-28
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Granted: 1971-06-22
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Expires: 1988-10-28
Abstract
Abstract A PROCESS FOR CONVERTING HYDROCARBONACEOUS BLACK OILS INTO LOWER-BOILING, NORMALLY LIQUID HYDROCARBON PRODUCTS. THE PROCESS INVOLVES THE INTERGRATION OF HYDROGENATIVE CRACKING AND FIXED-BED CATALYTIC DESULFURIZATION, AND IS ESPECIALLY APPLICABLE TO THOSE HYDROCARBON CHARGE STOCKS CONTAINING LESS THAN 150 P.P.M. OF METALLIC CONTAMINANTS, AND MORE THAN ABOUT 10.0% BY VOLUME NON-DISTILLABLES. THE CHARGE STOCK IS INITIALLY SUBJECTED TO A FIXED-BED CATALYTIC HYDROGENATION AND DESULFURIZATION REACTION ZONE. FOLLOWING SEPARATION OF THE REACTION ZONE EFFLUENT, A HIGHBOILING CONCENTRATE IS THERMALLY CRACKED IN A HYDROVISBREAKING OPERATION.
Inventors
- 👤 Laurence O Stine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:00
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/22; C10G65/00; C10G65/02; C10G65/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |