Patent US4769129A successfully refreshed from Google Patents.
US4769129A
Expired / Lapsed
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Method for hydroprocessing hydrocarbon-based charges
Assignee: Elf Antar France
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Filing: 1986-10-17
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Granted: 1988-09-06
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Expires: 2006-10-17
Abstract
Abstract This invention relates to a method of hydrotreating hydrocarbon-based charges by using a catalyst that comprises V 2 S 3 prepared in situ in the reaction zone or V 2 S 3 prepared outside this zone but treated in this zone by a sulphurating agent. The hydrotreating method according to the invention can be used to treat hydrocarbon-based charges such as gasoline, gasoil, refinery residues and heavy crude oils, thus allowing the elimination of impurities such as nitrogen, sulphur and metals. The method can also be used to hydrogenize the olefins and the aromatics and possibly lead to rupture of the carbon-carbon bonds.
Inventors
- 👤 Thierry J. Barbou des Courieres
- 👤 Michele J. Breysse
- 👤 Michel L. Lairoix
- 👤 Michel L. Vrinat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:18
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/20; B01J23/22; B01J23/70; B01J23/76; B01J23/84; B01J23/847; B01J23/8472; B01J27/00; B01J27/02; B01J27/04; C; C10; C10G; C10G49/00; C10G49/02; C10G49/10; C10G49/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
45 words
In a catalytic hydrotreating method for the treatment of hydrocarbon-based charges, the improvement which comprises hydrotreating said hydrocarbon-based charges in the presence of a V 2 S 3 catalyst prepared in situ by the decomposition of ammonium thiovanadate, (NH 4 ) 3 --VS 4 .
Claim 2
Dependent Claim
45 words
In a catalytic hydrotreating method for the treatment of hydrocarbon-based charges, the improvement which comprises hydrotreating said hydrocarbon-based charges in the presence of a V 2 S 3 catalyst prepared in situ by the decomposition of ammonium thiovanadate, (NH 4 ) 3 --VS 4 .
Claim 3
Dependent Claim
22 words
Method according to claim 1, wherein said ammonium thiovanadate is decomposed by heating at a temperature comprised between 200° and 500° C.
Claim 4
Dependent Claim
26 words
Method according to claim 1, wherein the hydrocarbon-based charge is selected from the group consisting of gasoline, gasoil, the refinery residues and the heavy crude oils.
Claim 5
Dependent Claim
16 words
Method according to claim 1, wherein the refining residue is reduced crude or a vacuum residue.
Claim 6
Dependent Claim
60 words
Method according to claim 1, wherein it is performed at a temperature comprised between 250° and 450° C., with a hydrogen/hydrocarbon molar ratio comprised between 100 and 1500 Nl/l, a pressure of 20 to 200 bars, a liquid hourly space velocity comprised between 0.1 and 10 l/h consisting in the desulphuration, denitration, demetallation, hydrogenation and hydrocracking of the hydrocarbon-based charges.
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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) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |