US3960706A
Expired / Lapsed
US
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Process for upgrading a hydrocarbon fraction
Assignee: Standard Oil Co
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Filing: 1974-05-31
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Granted: 1976-06-01
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Expires: 1994-05-31
Abstract
Abstract A process for upgrading a hydrocarbon fraction and for generating hydrogen in situ by contacting the hydrocarbon fraction with a dense-water-containing fluid at a temperature in the range of from about 600° to about 900°F. in the absence of externally supplied hydrogen and of pretreatment of the hydrocarbon fraction and in the presence of a catalyst system containing a sulfur- and nitrogen-resistant catalyst.
Inventors
- 👤 John D. McCollum
- 👤 Leonard M. Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/04; C10G1/08; C10G1/083; C10G11/00; C10G11/02
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
230 words
A process for cracking, hydrogenating, desulfurizing, demetalating, and denitrifying a hydrocarbon fraction containing paraffins, olefins, olefin-equivalents, or acetylenes, as such or as substituents on ring compounds, and sulfurous, metallic and nitrogenous components: comprising cracking hydrogenating, desulfurizing, demetalating, and denitrifying said hydrocarbon fraction by contacting said hydrocarbon fraction with a water-containing fluid at a temperature in the range of from about 600° to about 900°F., under super-atmospheric pressure, in the absence of externally supplied hydrogen, and in the presence of an externally supplied catalyst system containing a sulfur- and nitrogen-resistant catalyst selected from the group consisting of at least one soluble or insoluble transition metal compound and transition metal deposited on a support, said transition metal in said catalyst being selected from the group consisting of ruthenium, rhodium, iridium, osmium, and combinations thereof, wherein sufficient water is present in the water-containing fluid and said pressure is sufficiently high so that the water in the water-containing fluid has a density of at least 0.10 gram per milliliter and serves as an effective solvent for the hydrocarbon fraction, and wherein hydrogen is generated in situ; and lowering said temperature or pressure or both to thereby make the water in the water-containing fluid a less effective solvent for the hydrocarbon fraction and to thereby form separate phases, wherein essentially all the sulfur separated from the hydrocarbon fraction is in the form of elemental sulfur.
Claim 2
Dependent Claim
230 words
A process for cracking, hydrogenating, desulfurizing, demetalating, and denitrifying a hydrocarbon fraction containing paraffins, olefins, olefin-equivalents, or acetylenes, as such or as substituents on ring compounds, and sulfurous, metallic and nitrogenous components: comprising cracking hydrogenating, desulfurizing, demetalating, and denitrifying said hydrocarbon fraction by contacting said hydrocarbon fraction with a water-containing fluid at a temperature in the range of from about 600° to about 900°F., under super-atmospheric pressure, in the absence of externally supplied hydrogen, and in the presence of an externally supplied catalyst system containing a sulfur- and nitrogen-resistant catalyst selected from the group consisting of at least one soluble or insoluble transition metal compound and transition metal deposited on a support, said transition metal in said catalyst being selected from the group consisting of ruthenium, rhodium, iridium, osmium, and combinations thereof, wherein sufficient water is present in the water-containing fluid and said pressure is sufficiently high so that the water in the water-containing fluid has a density of at least 0.10 gram per milliliter and serves as an effective solvent for the hydrocarbon fraction, and wherein hydrogen is generated in situ; and lowering said temperature or pressure or both to thereby make the water in the water-containing fluid a less effective solvent for the hydrocarbon fraction and to thereby form separate phases, wherein essentially all the sulfur separated from the hydrocarbon fraction is in the form of elemental sulfur.
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein the density of water in the water-containing fluid is at least 0.15 gram per milliliter.
Claim 4
Dependent Claim
21 words
The process of claim 2 wherein the density of water in the water-containing fluid is at least 0.2 gram per milliliter.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein the temperature is at least 705°F.
Claim 6
Dependent Claim
31 words
The process of claim 1 wherein the hydrocarbon fraction and water-containing fluid are contacted for a period of time in the range of from about 1 minute to about 6 hours.
Claim 7
Dependent Claim
31 words
The process of claim 5 wherein the hydrocarbon fraction and water-containing fluid are contacted for a period of time in the range of from about 5 minutes to about 3 hours.
Claim 8
Dependent Claim
31 words
The process of claim 6 wherein the hydrocarbon fraction and water-containing fluid are contacted for a period of time in the range of from about 10 minutes to about 1 hour.
Claim 9
Dependent Claim
27 words
The process of claim 1 wherein the weight ratio of the hydrocarbon fraction-to-water in the water-containing fluid is in the range from about 1:1 to about 1:10.
Claim 10
Dependent Claim
28 words
The process of claim 8 wherein the weight ratio of the hydrocarbon fraction-to-water in the water-containing fluid is in the range of from about 1:2 to about 1:3.
Claim 11
Dependent Claim
12 words
The process of claim 1 wherein the water-containing fluid is substantially water.
Claim 12
Dependent Claim
11 words
The process of claim 1 wherein the water-containing fluid is water.
Claim 13
Dependent Claim
41 words
The process of claim 1 wherein the catalyst is present in a catalytically effective amount which is equivalent to a concentration level in the water in the water-containing fluid in the range of from about 0.02 to about 1.0 weight percent.
Claim 14
Dependent Claim
41 words
The process of claim 12 wherein the catalyst is present in a catalytically effective amount which is equivalent to a concentration level in the water in the water-containing fluid in the range of from about 0.05 to about 0.15 weight percent.
Claim 15
Dependent Claim
47 words
The process of claim 1 wherein the catalyst system includes additionally a promoter selected from the group consisting of at least one basic metal hydroxide, basic metal carbonate, transition metal oxide, oxide-forming transition metal salt, and combinations thereof, wherein said promoter promotes the activity of the catalyst.
Claim 16
Dependent Claim
35 words
The process of claim 14 wherein the transition metal in the oxide and salt is selected from the group consisting of a transition metal of Group IVB, VB, VIB, and VIIB of the Periodic Chart.
Claim 17
Dependent Claim
34 words
The process of claim 15 wherein the transition metal in the oxide and salt is selected from the group consisting of vanadium, chromium, manganese, iron, titanium, molybdenum, copper, zirconium, niobium, tantalum, rhenium, and tungsten.
Claim 18
Dependent Claim
27 words
The process of claim 16 wherein the transition metal in the oxide and salt is selected from the group consisting of chromium, manganese, titanium, tantalum, and tungsten.
Claim 19
Dependent Claim
27 words
The process of claim 14 wherein the metal in the basic metal carbonate and hydroxide is selected from the group consisting of alkali and alkaline earth metals.
Claim 20
Dependent Claim
25 words
The process of claim 18 wherein the metal in the basic metal carbonate and hydroxide is selected from the group consisting of sodium and potassium.
Claim 21
Dependent Claim
39 words
The process of claim 14 wherein the ratio of the number of atoms of metal in the promoter to the number of atoms of metal in the catalyst is in the range of from about 0.5 to about 50.
Claim 22
Dependent Claim
39 words
The process of claim 20 wherein the ratio of the number of atoms of metal in the promoter to the numer of atoms of metal in the catalyst is in the range of from about 3 to about 5.
Claim 23
Dependent Claim
24 words
The process of claim 1 wherein the hydrocarbon fraction is contacted with the water-containing fluid in the absence of pretreatment of the hydrocarbon fraction.
References Cited (Backward Citations)
US2211944A
Cited
US3453206A
Cited
US3586621A
Cited
US3501396A
Cited
US3676331A
Cited
US3687838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |