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Patent US4435277A successfully refreshed from Google Patents.
US4435277A
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US
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Process for the hydrotreatment of heavy hydrocarbons in the presence of reduced metals
Assignee: IFP Energies nouvelles
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Filing: 1982-04-15
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Granted: 1984-03-06
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Expires: 2002-04-15
Abstract
Abstract A heavy hydrocarbon charge containing sulfur, asphaltenes and/or resins is hydrotreated in the liquid phase at 250 DEG -500 DEG C. under a pressure of 20-350 bars in the presence of a catalyst previously obtained by reacting an organic compound of a transition metal with an organic aluminum compound, in a hydrocarbon free of asphaltene and resin. The transition metal organic compound is advantageously an iron, nickel, cobalt, molybdenum, tungsten or vanadium acetylacetonate or carboxylate.
Inventors
- 👤 Chan T. Dinh
- 👤 Alain Desvard
- 👤 Yves Jacquin
- 👤 Germain Martino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:36
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/02; B01J31/04; B01J31/12; B01J31/14; B01J31/143; B01J31/18; B01J31/1845; B01J2531/00; B01J2531/50; B01J2531/56; B01J2531/60; B01J2531/62; B01J2531/80; B01J2531/82; B01J2531/821; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
88 words
A process for hydrotreating a heavy hydrocarbon charge containing sulfur and asphaltenes, in the liquid phase, comprising contacting said charge with hydrogen, at a temperature of 250°-500° C. and a pressure of 20-350 bars, in the presence of a preformed catalyst prepared by reacting at least one transition metal organic compound with at least one organic aluminum compound, in a hydrocarbon solvent which is substantially free of asphaltenes, said transition metal being titanium, zirconium, vanadium, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, cobalt, nickel, copper, zinc or tin.
Claim 2
Dependent Claim
88 words
A process for hydrotreating a heavy hydrocarbon charge containing sulfur and asphaltenes, in the liquid phase, comprising contacting said charge with hydrogen, at a temperature of 250°-500° C. and a pressure of 20-350 bars, in the presence of a preformed catalyst prepared by reacting at least one transition metal organic compound with at least one organic aluminum compound, in a hydrocarbon solvent which is substantially free of asphaltenes, said transition metal being titanium, zirconium, vanadium, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, cobalt, nickel, copper, zinc or tin.
Claim 3
Dependent Claim
27 words
A process according to claim 1, wherein said at least one transition metal organic compound is an iron, nickel, cobalt, molybdenum, tungsten or vanadium acetylacetonate or carboxylate.
Claim 4
Dependent Claim
20 words
A process according to claim 1, wherein said at least one transition metal organic compound is vanadium alkyl- or arylphosphate.
Claim 5
Dependent Claim
47 words
A process according to claim 1, wherein said organic aluminum compound has the formula Al R' R" R'", wherein at least one of R', R" or R'" is a monovalent hydrocarbon radical or an alkoxy radical and the others are hydrogen, monovalent hydrocarbon radicals or alkoxy radicals.
Claim 6
Dependent Claim
68 words
A process according to claim 1, wherein the catalyst amount is from 20 to 10,000 parts by weight, expressed as weight of transition metal, per million parts by weight of hydrocarbons subjected to the hydrotreatment and wherein the ratio between the atomic amounts of the aluminum of the organic aluminum compound and the metal or metals of the transition metal organic compound is comprised between 0.1:1 and 15:1.
Claim 7
Dependent Claim
49 words
A process according to claim 1, wherein said preformed catalyst is prepared using a mixture of transition metal organic compounds, the mixture being a mixture of molybdenum and cobalt organic compounds, or a mixture of molybdenum and nickel organic compounds or a mixture of nickel and tungsten organic compounds.
Claim 8
Dependent Claim
18 words
A process according to claim 1, wherein the catalyst is sulfided after admixture with the heavy hydrocarbon charge.
Claim 9
Dependent Claim
18 words
A process according to claim 1, wherein said temperature is 320°-450° C. and said pressure is 90-200 bars.
Claim 10
Dependent Claim
30 words
A process according to claim 1, wherein said catalyst is prepared as a solution in said hydrocarbon solvent and then applied to a carrier and used as a supported catalyst.
Claim 11
Dependent Claim
32 words
A process according to claim 1, wherein said heavy hydrocarbon charge contains at least 0.5% by weight of sulfur and a total of at least 1% by weight of asphaltenes and resins.
Claim 12
Dependent Claim
15 words
A process according to claim 4, wherein said organic aluminum compound is triethylaluminum or triisobutylaluminum.
Claim 13
Dependent Claim
17 words
A process according to claim 1, wherein said hydrocarbon solvent boils between 30° C. and 250° C.
Claim 14
Dependent Claim
24 words
A process according to claim 12, wherein said solvent is a C 5 fraction, a gasoline fraction, a naphtha fraction or a kerosene fraction.
Claim 15
Dependent Claim
20 words
A process according to claim 6, wherein the atomic ratio of metals in said mixture is from 0.1:1 to 10:1.
Claim 16
Dependent Claim
20 words
A process according to claim 1, which further comprises the step of recovering and recycling catalyst after said contacting step.
References Cited (Backward Citations)
US3331769A
Cited
US4192735A
Cited
US4055483A
Cited
US4285804A
Cited
US4357229A
Cited
US4348270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |