US4313020A
Expired / Lapsed
US
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Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
Assignee: Honeywell UOP LLC
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Filing: 1980-11-24
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Granted: 1982-01-26
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Expires: 2000-11-24
Abstract
Abstract Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel attenuated superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of catalytically effective amounts of a platinum group component maintained in the elemental metallic state, and of a germanium component. An example of the attenuated superactive nonacidic multimetallic catalytic composite disclosed herein is a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of catalytically effective amounts of an alkali or alkaline earth component, a germanium component, and of a platinum group component which is maintained in the elemental metallic state during the incorporation of the rhenium carbonyl component.
Inventors
- 👤 George J. Antos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:12
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/656; B01J23/6567; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; C07C5/367; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/14; C07C2523/16; C07C2523/32; C07C2523/36; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/46; C07C2523/54; C07C2523/56; C07C2523/64; C07C2523/656; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
63 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, at hydrocarbon dehydrogenation conditions, with a catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of a catalytically effective amount of a platinum group component maintained in the elemental metallic state, and of a germanium component.
Claim 2
Independent Claim
63 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, at hydrocarbon dehydrogenation conditions, with a catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of a catalytically effective amount of a platinum group component maintained in the elemental metallic state, and of a germanium component.
Claim 3
Dependent Claim
21 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is admixed with hydrogen when it contacts the catalytic composite.
Claim 4
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group component is platinum.
Claim 5
Dependent Claim
14 words
A method as defined in claim 1 wherein the platoinum group component is iridium.
Claim 6
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group component is rhodium.
Claim 7
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group component is palladium.
Claim 8
Dependent Claim
50 words
A method as defined in claim 1 wherein the catalytic composite contains the components in amounts, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 5 wt. % rhenium and about 0.005 to about 5 wt. % germanium.
Claim 9
Dependent Claim
17 words
A method as defined in claim 1 wherein the porous carrier material is a refractory inorganic oxide.
Claim 10
Dependent Claim
14 words
A method as defined in claim 8 wherein the refractory inorganic oxide is alumina.
Claim 11
Dependent Claim
26 words
A method as defined in claim 1 wherein substantially all of the germanium component is present in an oxidation state above that of the elemental metal.
Claim 12
Dependent Claim
17 words
A method as defined in claim 1 wherein the catalytic composite is in a substantially halogen-free state.
Claim 13
Dependent Claim
23 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is an aliphatic hydrocarbon containing 2 to 30 carbon atoms per molecule.
Claim 14
Dependent Claim
24 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing 3 to 30 carbon atoms per molecule.
Claim 15
Dependent Claim
13 words
A method as defined in claim 13 wherein said normal paraffin is propane.
Claim 16
Dependent Claim
14 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 17
Dependent Claim
26 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group of which contains about 2 to 6 carbon atoms.
Claim 18
Dependent Claim
54 words
A method as defined in claim 2 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 LHSV of about 1 to about 40 hr. -1 , and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 19
Independent Claim
66 words
A method for dehydrogenating a dehydrogenatable hydrcarbon which comprises contacting said hydrocarbon with a catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of a catalytically effective amount of an alkali or alkaline earth component, a germanium component and a platinum component which is maintained in the elemental metallic state.
Claim 20
Independent Claim
66 words
A method for dehydrogenating a dehydrogenatable hydrcarbon which comprises contacting said hydrocarbon with a catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of a catalytically effective amount of an alkali or alkaline earth component, a germanium component and a platinum component which is maintained in the elemental metallic state.
Claim 21
Dependent Claim
21 words
A method as defined in claim 18 wherein the dehydrogenatable hydrocarbon is admixed with hydrogen when it contacts the catalytic composite.
Claim 22
Dependent Claim
23 words
A method as defined in claim 18 wherein the dehydrogenatable hydrocarbon is an aliphatic hydrocarbon containing 2 to 30 carbon atoms per molecule.
Claim 23
Dependent Claim
25 words
A method as defined in claim 18 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 3 to 30 carbon atoms per molecule.
Claim 24
Dependent Claim
13 words
A method as defined in claim 21 wherein the paraffin hydrocarbon is propane.
Claim 25
Dependent Claim
26 words
A method as defined in claim 18 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 10 to about 18 carbon atoms per molecule.
Claim 26
Dependent Claim
26 words
A method as defined in claim 18 wherein the dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group of which contains about 2 to 6 carbon atoms.
Claim 27
Dependent Claim
14 words
A method as defined in claim 18 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 28
Dependent Claim
54 words
A method as defined in claim 19 wherein the dehydrogenation conditions include a temperature of about 700° to about 1200° F., a pressure of about 0.1 to about 10 atmospheres, an LHSV of about 1 to about 40 hr. -1 , and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 29
Dependent Claim
13 words
A method as defined in claim 20 wherein the aliphatic hydrocarbon is isobutane.
Claim 30
Dependent Claim
13 words
A method as defined in claim 21 wherein the paraffin hydrocarbon is butane.
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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) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |