Petroleum crude oil conversion process
Abstract
Abstract A PETROLEUM CRUDE OIL FEEDSTOCK IS CONVERTED INTO A MORE VALUABLE HYDROCARBON PRODUCT BY A COMBINATION PROCESS INCLUDING THE STEPS OF CONTACTING THE FEEDSTOCK IN A CONTACTING ZONE WITH A LIGHT HYDROCARBON SOLVENT, SEPARATING THE RESULTING MIXTURE TO PROVIDE A LIGHT HYDROCARBON FRACTION AND A HEAVY HYDROCARBON FRACTION, HYDROREFINING THE LIGHT HYDROCARBON FRACTION, PASSING A RESULTING HYDROREFINED EFFLUENT HYDROCARBON AND THE HEAVY HYDROCARBON FRACTION INTO A DISTILLATION ZONE, AND RECOVERING THE DESIRED HYDROCARBON PRODUCT FROM THE DISTILLATION ZONE. THE LIGHT HYDROCARBON SOLVENT CONTAINS HYDROCARBON HAVING LESS THAN SIX CARBON ATOMS PER MOLECULE, AND THE HYDROREFINED EFFLUENT HYDROCARBON CONTAINS SPECIES HAVING LESS THAN SIX CARBON ATOMS PER MOLECULE, WHEREBY AT LEAST A PORTION OF THE LIGHT HYDROCARBON SOLVENT PASSED INTO THE CONTACTING ZONE IS OBTAINED FROM THE DISTILLATION ZONE. THE PROCESS HAS PARTICULAR APPLICATION TO HYDROTREATING AND HYDROCRACKING HEAVY FEEDSTOCKS CONTAINING A SIGNIFICANT QUANTITY OF ASPHALTIC MATERIALS, ORGANO-METALLIC COMPLEXES, SULFUR COMPOUNDS, AND NITROGEN COMPOUNDS, WHEREIN AT LEAST ABOUT 10% BY VOLUME OF THE FEEDSTOCK BOILS AT A TEMPERATURE IN EXCESS OF ABOUT 1050*F.
Inventors
- 👤 Laurence O Stine
Bibliographic Details
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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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |