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US3966895A
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Dehydrogenation with a nonacidic multimetallic catalyst
Assignee: Universal Oil Products Co
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Filing: 1974-08-27
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Granted: 1976-06-29
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Expires: 1994-08-27
Abstract
Abstract A dehydrogenatable hydrocarbon is dehydrogenated by contacting the hydrocarbon, hydrogen, and water or a water-producing substance, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a combination of catalytically effective amounts of a platinum group metal component, a nickel component, a Group IVA metallic component, and an alkali or alkaline earth component with a porous carrier material. A specific example of the nonacidic, multimetallic catalytic composite disclosed herein is a combination of a platinum metal component, a nickel component, a germanium component, and an alkali or alkaline earth component with an alumina carrier material. The amounts of the catalytically active components contained in this last composite are, on an elemental basis, 0.01 to 2 wt. % platinum, 0.01 to 5 wt. % nickel, 0.01 to 5 wt. % germanium, and 0.1 to 5 wt. % of the alkali or alkaline earth metal.
Inventors
- 👤 Frederick C. Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:08
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8933; B01J23/8966; C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/14; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/70; C07C2523/74; C07C2523/755; C07C2523/89; C07C2527/00; C07C2527/02
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
158 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, hydrogen, and water or water-producing substance, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 5 wt. % nickel, about 0.01 to about 5 wt. Group IVA metal, and about 0.1 to about 5 wt. % of an alkali or alkaline earth metal, wherein the platinum group metal, Group IVA metal, nickel, and alkali or alkaline earth metal are uniformly dispersed throughout the porous carrier material, wherein substantially all of the platinum group metal is present in the elemental metallic state, wherein substantially all of the Group IVA metal is present in an oxidation state above that of the elemental metal and wherein substantially all of the alkali or alkaline earth metal is present in an oxidation state above that of the elemental metal.
Claim 2
Independent Claim
158 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, hydrogen, and water or water-producing substance, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 5 wt. % nickel, about 0.01 to about 5 wt. Group IVA metal, and about 0.1 to about 5 wt. % of an alkali or alkaline earth metal, wherein the platinum group metal, Group IVA metal, nickel, and alkali or alkaline earth metal are uniformly dispersed throughout the porous carrier material, wherein substantially all of the platinum group metal is present in the elemental metallic state, wherein substantially all of the Group IVA metal is present in an oxidation state above that of the elemental metal and wherein substantially all of the alkali or alkaline earth metal is present in an oxidation state above that of the elemental metal.
Claim 3
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group metal is platinum.
Claim 4
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group metal is palladium.
Claim 5
Dependent Claim
17 words
A method as defined in claim 1 wherein the porous carrier material is a refractory inorganic oxide.
Claim 6
Dependent Claim
14 words
A method as defined in claim 4 wherein the refractory inorganic oxide is alumina.
Claim 7
Dependent Claim
16 words
A method as defined in claim 1 wherein the alkali or alkaline earth metal is lithium.
Claim 8
Dependent Claim
16 words
A method as defined in claim 1 wherein the alkali or alkaline earth metal is potassium.
Claim 9
Dependent Claim
20 words
A method as defined in claim 1 wherein substantially all of the nickel is present in the elemental metallic state.
Claim 10
Dependent Claim
14 words
A method as defined in claim 1 wherein the Group IVA metal is germanium.
Claim 11
Dependent Claim
14 words
A method as defined in claim 1 wherein the Group IVA metal is tin.
Claim 12
Dependent Claim
14 words
A method as defined in claim 1 wherein the Group IVA metal is lead.
Claim 13
Dependent Claim
62 words
A method as defined in claim 1 wherein the atomic ratio of Group IVA metal to platinum group metal is about 0.05:1 to about 10:1, wherein the atomic ratio of nickel to platinum group metal is about 0.2:1 to about 20:1 and wherein the atomic ratio of the alkali or alkaline earth metal to platinum group metal is about 5:1 to 50:1.
Claim 14
Dependent Claim
24 words
A method as defined in claim 1 wherein the composite contains about 0.05 to about 0.5 wt. % sulfur, calculated on an elemental basis.
Claim 15
Dependent Claim
18 words
A method as defined in claim 9 wherein substantially all of the germanium is present as germanium oxide.
Claim 16
Dependent Claim
18 words
A method as defined in claim 10 wherein substantially all of the tin is present as tin oxide.
Claim 17
Dependent Claim
18 words
A method as defined in claim 11 wherein substantially all of the lead is present as lead oxide.
Claim 18
Dependent Claim
64 words
A method as defined in claim 1 wherein the composite contains, on an elemental basis, about 0.05 to about 1 wt. % platinum group metal, about 0.05 to about 2 wt. % nickel, about 0.05 to about 2 wt. % Group IVA metal, and about 0.25 to about 3.5 wt. % alkali or alkaline earth metal and wherein the porous carrier material is alumina.
Claim 19
Dependent Claim
23 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is an aliphatic compound containing 2 to 30 carbon atoms per molecule.
Claim 20
Dependent Claim
25 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 4 to 30 carbon atoms per molecule.
Claim 21
Dependent Claim
25 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 10 to 18 carbon atoms per molecule.
Claim 22
Dependent Claim
25 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group of which contains 2 to 6 carbon atoms.
Claim 23
Dependent Claim
14 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 24
Dependent Claim
55 words
A method as defined in claim 1 wherein the dehydrogenation conditions include a temperature of about 700° to about 1200° F., a pressure of about 0.1 to about 10 atmospheres, a liquid hourly space velocity of about 1 to 40 hr..sup. -1 and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 25
Dependent Claim
30 words
A method as defined in claim 1 wherein the amount of water or water-producing substance used therein corresponds to about 50 to about 10,000 wt. ppm. of the hydrocarbon charge.
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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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |