US3856870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation with a nonacidic multimetallic catalyst
Assignee: Universal Oil Products Co
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Filing: 1973-06-01
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Granted: 1974-12-24
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Expires: 1993-06-01
Abstract
Abstract Dehydrogenatable hydrocarbons are dehydrogenated by contacting them at dehydrogenation conditions with a nonacidic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium 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 component, an iridium 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 2 wt. % iridium, 0.01 to 5 wt. % germanium and 0.1 to 5 wt. % of the alkali or alkaline earth metal.
Inventors
- 👤 J Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:31
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; B01J23/624; B01J37/00; B01J37/22; C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/14
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
148 words
A METHOD FOR DEHYDROGENATING A DEHYDROGENATABLE HYDROCARBON COMPRISING CONTACTING THE HYDROCARBON WITH A NONACIDIC CATALYTIC COMPOSITE COMPRISING A POUROUS CARRIER MATERIAL CONTAINING, ON AN EMEMENTAL BASIS, ABOUT 0.01 TO ABOUT 2 WT. % PLATINUM OR PALLADIUM, ABOUT 0.01 TO 2 WT. % IRIDIUM, ABOUT 0.01 TO ABOUT 5WT.% GERMANIUM AND ABOUT 0.1 TO ABOUT 5WT% OF AN ALKALI OR ALKALINE EARTH METL, WEHREIN THE LATINUM OR PALLADIUM, IRIDIYUM, GERMANIUM AND ABOUT 0.1 ALKALINE EARTH METAL COMPONENTS ARE UNIFORMLY DISPERSED THROUGHOUT THE POROUS CARRIER MATERIAL, WHEREIN SUBSTANTIALLY ALL OF THE PLATINUM OR PALLADIUM AND IRIDIUM COMPONENTS ARE PRESENT IN THE CORRESPONDING ELEMENTAL METALLIC STATE, WHEREIN SUBSTANTIALLY ALL OF THE ALKALI OR ALKALINE EARTH METAL COMPOOXIDATION STATE ABOVE THAT OF THE ELEMENTAL METAL AND WHEREIN SUBSTANTIALLY ALL OF THE ALKALI OR ALKALINE EARTH METAL COMPONENT IS PRESENT IN AN OXIDATION STATE ABOVE THAT OF THE ELEMENTAL METAL AT DEHYDROGENATION CONDITIONS.
Claim 2
Independent Claim
148 words
A METHOD FOR DEHYDROGENATING A DEHYDROGENATABLE HYDROCARBON COMPRISING CONTACTING THE HYDROCARBON WITH A NONACIDIC CATALYTIC COMPOSITE COMPRISING A POUROUS CARRIER MATERIAL CONTAINING, ON AN EMEMENTAL BASIS, ABOUT 0.01 TO ABOUT 2 WT. % PLATINUM OR PALLADIUM, ABOUT 0.01 TO 2 WT. % IRIDIUM, ABOUT 0.01 TO ABOUT 5WT.% GERMANIUM AND ABOUT 0.1 TO ABOUT 5WT% OF AN ALKALI OR ALKALINE EARTH METL, WEHREIN THE LATINUM OR PALLADIUM, IRIDIYUM, GERMANIUM AND ABOUT 0.1 ALKALINE EARTH METAL COMPONENTS ARE UNIFORMLY DISPERSED THROUGHOUT THE POROUS CARRIER MATERIAL, WHEREIN SUBSTANTIALLY ALL OF THE PLATINUM OR PALLADIUM AND IRIDIUM COMPONENTS ARE PRESENT IN THE CORRESPONDING ELEMENTAL METALLIC STATE, WHEREIN SUBSTANTIALLY ALL OF THE ALKALI OR ALKALINE EARTH METAL COMPOOXIDATION STATE ABOVE THAT OF THE ELEMENTAL METAL AND WHEREIN SUBSTANTIALLY ALL OF THE ALKALI OR ALKALINE EARTH METAL COMPONENT IS PRESENT IN AN OXIDATION STATE ABOVE THAT OF THE ELEMENTAL METAL AT DEHYDROGENATION CONDITIONS.
Claim 3
Dependent Claim
17 words
A method as defined in claim 1 wherein the porous carrier material is a refractory inorganic oxide.
Claim 4
Dependent Claim
14 words
The method as defined in claim 2 wherein the refractory inorganic oxide is alumina.
Claim 5
Dependent Claim
16 words
A method as defined in claim 1 wherein the alkali or alkaline earth metal is lithium.
Claim 6
Dependent Claim
16 words
A method as defined in claim 1 wherein the alkali or alkaline earth metal is potassium.
Claim 7
Dependent Claim
60 words
A method as defined in claim 1 wherein the atomic ratio of germanium to platinum or palladium is about 0.05:1 to about 10:1, wherein the atomic ratio of iridium to platinum or palladium is about 0.1:1 to about 2:1 and wherein the atomic ratio of the alkali or alkaline earth metal to platinum group metal is about 5:1 to 50:1.
Claim 8
Dependent Claim
25 words
A catalytic 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 9
Dependent Claim
18 words
A method as defined in claim 1 wherein substantially all of the germanium is present as germanium oxide.
Claim 10
Dependent Claim
21 words
A method as defined in claim 1 wherein said dehydrogenatable hydrocarbon is admixed with hydrogen when it contacts the catalytic composite.
Claim 11
Dependent Claim
23 words
A method as defined in claim 1 wherein said dehydrogenatable hydrocarbon is an aliphatic compound containing 2 to 30 carbon atoms per molecule.
Claim 12
Dependent Claim
25 words
A method as defined in claim 1 wherein said dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 4 to 30 carbon atoms per molecule.
Claim 13
Dependent Claim
26 words
A method as defined in claim 1 wherein said dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 10 to about 18 carbon atoms per molecule.
Claim 14
Dependent Claim
24 words
A method as defined in claim 1 wherein said dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group which contains 2 to 6 carbon atoms.
Claim 15
Dependent Claim
14 words
A method as defined in claim 1 wherein said dehydrogenatable hydrocarbon is a naphthene.
Claim 16
Dependent Claim
54 words
A method as defined in claim 1 wherein said 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. 1 and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 17
Dependent Claim
74 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon with the catalytic composite as defined in claim 1 wherein the composite contains, on an elemental basis, about 0.05 12C357666en to about 1 wt. % platinum or palladium, about 0.05 to about 1 wt. % iridium, about 0.05 to about 2 wt.% germanium and about 0.25 to about 3.5 wt.% alkali or alkaline earth metal and wherein the porous carrier material is alumina.
References Cited (Backward Citations)
US3696167A
Cited
US3718578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |