US3755148A
Expired / Lapsed
US
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Hydrocarbon hydrogenation
Assignee: Union Oil Company of California
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Filing: 1971-04-01
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Granted: 1973-08-28
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Expires: 1991-04-01
Abstract
Abstract Hydrocarbons having at least one point of carbon-to-carbon unsaturation are reacted with hydrogen under hydrogenation conditions including a catalytic combination of at least one molybdenum compound and at least one Group VIII metal or metal compound prepared by impregnating a foraminous refractory oxide support with a highly stable solution of the metal compounds and an acid of phosphorus wherein the impregnating solution has a P/MoO3 weight ratio of about 0.1 to about 0.25 and an initial pH of about 1 to about 2. Even greater advantage relative to previously available hydrogenation systems is realized when operating on feedstocks containing substantial amounts of organonitrogen compounds.
Inventors
- 👤 G Mickelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:21
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/44; C10G45/46; C10G45/48; C10G45/50; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
52 words
The method of claim 1 wherein said water soluble compound is selected from the nitrates, sulfates, fluorides, chlorides, hydroxides, carbonates and bromides of nickel and cobalt, said molybdenum compound is ammonium heptamolybdate, said acid of phosphorus is orthophosphoric acid, and the concentration of said molybdenum compound exceeds about 17 weight percent MoO3.
Claim 2
Dependent Claim
70 words
The method of claim 1 wherein said catalytic composition contains about 5 to about 40 weight-percent MoO3 and about 1 to about 10 weight-percent of the corresponding oxide of nickel or cobalt, said water soluble compound is selected from the nitrates, sulfates, hydroxides, carbonates and chlorides of nickel and cobalt and said feed comprises at least about 10 weight percent of aromatic hyDrocarbons having six to about 20 carbon atoms.
Claim 3
Dependent Claim
109 words
The method of claim 1 wherein said hydrocarbon feed boils substantially above about 100*F. and comprises at least about 5 volume percent of unsaturated hydrocarbons selected from olefinic and substituted and unsubstituted aromatic hydrocarbons, said hydrocarbon is contacted at a temperature of at least about 400*F., a pressure of at least about 500 psig for at least about 1 minute under a superatmospheric hydrogen partial pressure corresponding to at least about 100 standard cubic feet of hydrogen per barrel of said hydrocarbon sufficient to increase the hydrogen-to-carbon ratio of said unsaturated hydrocarbons by at least about 5 relative percent, and said foraminous support is an alumina containing refractory oxide.
Claim 4
Dependent Claim
21 words
The method of claim 4 wherein said hydrocarbon feed contains at least about 2 parts per million nitrogen as organonitrogen compounds.
Claim 5
Dependent Claim
51 words
The method of claim 4 wherein said hydrocarbon feed contains at least about 10 parts per million nitrogen as organonitrogen compounds and at least 10 volume percent of said unsaturated compounds and said feed is contacted with said catalyst under conditions sufficient to substantially reduce the organonitrogen content of said feed.
Claim 6
Dependent Claim
87 words
The method of claim 4 wherein said hydrocarbon feed is contacted with said catalyst under said hydrogenation conditions sufficient to reduce the concentration of said unsaturated hydrocarbons by at least about 5 relative percent and increase the hydrogen-to-carbon ratio of said unsaturated hydrocarbons by at least about 5 percent in the presence of less than 20 percent conversion of said feed to hydrocarbon products boiling below the initial boiling point of said feed, and said molybdenum compound is at least one of ammonium heptamolybdate and molybdic acid.
Claim 7
Independent Claim
221 words
The method of increasing the hydrogen-to-carbon ratio of a hydrocarbon feed boiling substantially above about 100*F. and containing at least about 10 volume percent of hydrocarbons having at least one point of carbon-to-carbon unsaturation selected from olefinic and substituted and unsubstituted aromatic hydrocarbons which comprises reacting said feed with hydrogen under hydrogenation conditions including a temperature in excess of about 400*F., a pressure in excess of about 500 psig, a contact time of at least about 1 minute and a superatmospheric hydrogen partial pressure of at least 50 psi sufficient to increase the hydrogen-to-carbon ratio of said unsaturated hydrocarbons by a factor of at least about 5 percent in the presence of a catalytic composition formed on impregnating a foraminous support with an aqueous impregnating medium which forms on admixture of at least one molybdenum compound selected from ammonium heptamolybdate and molybdic acid, at least one Group VIII compounds selected from the hydroxides, carbonates and water soluble strong mineral acid salts of at least one of nickel and cobalt, and orthophosphoric acid, in proportions equivalent to about 17 to about 30 weight-percent molybdenum trioxide, at least about 2 weight-percent of the corresponding oxide of nickel or cobalt, and a P/MoO3 weight ratio of about 0.1 to about 0.25 at an initial solution pH below about 2, and activating the resultant combination.
Claim 8
Dependent Claim
104 words
The method of claim 8 wherein said hydrocarbon feed boils primarily above about 400*F. and contains at least about 10 volume percent aromatic hydrocarbons having about 6 to about 20 carbon atoms per molecule and is contacted with said catalyst under a superatmospheric hydrogen partial pressure corresponding to about 400 to about 20,000 standard cubic feet of hydrogen per barrel of said feed, and conditions of temperature and pressure sufficient to reduce the concentration of said aromatic hydrocarbons by a rElative amount of at least about 5 percent and reduce the organonitrogen content of said hydrocarbon to less than 5 parts per million nitrogen.
Claim 9
Dependent Claim
35 words
The method of claim 9 wherein said hydrogenation conversion is effected in the presence of less than 20 percent conversion of said feed to hydrocarbon products boiling below the initial boiling point of said feed.
Claim 10
Dependent Claim
50 words
The method of claim 9 wherein said molybdenum compound comprises primarily ammonium heptamolybdate, said Group VIII compound comprises primarily at least one of nickel nitrate and cobalt nitrate and is present in said medium in an amount corresponding to about 1 to about 8 weight-percent of the corresponding metal oxides.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |