US3932548A
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US
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Dehydrogenation method and multimetallic catalytic composite for use therein
Assignee: Universal Oil Products Co
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Filing: 1974-03-08
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Granted: 1976-01-13
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Expires: 1994-03-08
Abstract
Abstract Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a Group IB transition metal component, a rhenium component and a tin component with a porous carrier material. A specific example of the catalytic composite disclosed herein is a combination of a platinum group component, a Group IB component, a rhenium component, a tin component and an alkali or alkaline earth component with a porous carrier material wherein substantially all of the platinum group component, the Group IB component and the rhenium component are present as the corresponding elemental metals and substantially all of the tin component is present in an oxidation state above the elemental metal, and wherein the composite contains about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 5 wt. % Group IB metal, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin and about 0.01 to about 5 wt. % alkali or alkaline earth metal.
Inventors
- 👤 Richard E. Rausch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:59
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; B01J29/00; B01J29/04; B01J29/06; B01J29/076; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; C07C2523/00; C07C2523/14; C07C2523/16; C07C2523/32; C07C2523/36; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/48; C07C2523/54; C07C2523/66
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
138 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting said hydrocarbon, at dehydrogenation conditions, with a catalytic composite comprising a combination of a platinum group component, a rhenium component, a tin component and a Group IB component with a porous carrier material in amounts sufficient to result in a composite containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, abut 0.01 to about 5 wt. % tin, and about 0.01 to about 5 wt. % of a Group IB metal, wherein substantially all of the platinum group component, the rhenium component, and the Group IB component are present in the corresponding elemental metallic states and wherein substantially all of the tin component is present in an oxidation state above that of the elemental metal.
Claim 2
Independent Claim
138 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting said hydrocarbon, at dehydrogenation conditions, with a catalytic composite comprising a combination of a platinum group component, a rhenium component, a tin component and a Group IB component with a porous carrier material in amounts sufficient to result in a composite containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, abut 0.01 to about 5 wt. % tin, and about 0.01 to about 5 wt. % of a Group IB metal, wherein substantially all of the platinum group component, the rhenium component, and the Group IB component are present in the corresponding elemental metallic states and wherein substantially all of the tin component is present in an oxidation state above that of the elemental metal.
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
15 words
A method as defined in claim 1 wherein the platinum group component is platinum metal.
Claim 5
Dependent Claim
15 words
A method as defined in claim 1 wherein the platinum group component is palladium metal.
Claim 6
Dependent Claim
14 words
A method as defined in claim 1 wherein the tin component is tin oxide.
Claim 7
Dependent Claim
17 words
A method as defined in claim 1 wherein the porous carrier material is a refractory inorganic oxide.
Claim 8
Dependent Claim
16 words
A method as defined in claim 6 wherein the refractory inorganic oxide is gamma- or eta-alumina.
Claim 9
Dependent Claim
14 words
A method as defined in claim 1 wherein the Group IB component is copper.
Claim 10
Dependent Claim
14 words
A method as defined in claim 1 wherein the Group IB component is silver.
Claim 11
Dependent Claim
14 words
A method as defined in claim 1 wherein the Group IB component is gold.
Claim 12
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 13
Dependent Claim
24 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing 4 to 30 carbon atoms per molecule.
Claim 14
Dependent Claim
14 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 15
Dependent Claim
50 words
A method as defined in claim 1 wherein the dehydrogenation conditions include a temperature of 700 to about 1250° F., a pressure of 0.1 to 10 atmospheres, an LHSV of 1 to 40 hr. - 1 , and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 16
Dependent Claim
52 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 1 wt. % rhenium, about 0.05 to about 2 wt. % tin and about 0.05 to about 2 wt. % Group IB metal.
Claim 17
Dependent Claim
67 words
A method as defined in claim 1 wherein the metals content of the catalytic composite is adjusted so that the atomic ratio of tin to platinum group metal is about 0.1:1 to about 3:1, the atomic ratio of rhenium to platinum group metal is about 0.1:1 to about 3:1 and the atomic ratio of Group IB metal to platinum group metal is about 0.1:1 to about 2:1.
Claim 18
Dependent Claim
140 words
A catalytic composite comprising a combination of a platinum group component, a rhenium component, a tin component, a Group IB component, and an alkali or alkaline earth component with a porous carrier material in an amount sufficient to result in a composite containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin, about 0.01 to about 5 wt. % Group IB metal, and about 0.01 to about 5 wt. % alkali metal or alkaline earth metal, wherein substantially all of the platinum group component, rhenium component, and the Group IB component are present in the corresponding elemental metallic states and wherein substantially all of the tin component is present in an oxidation state above that of the elemental metal.
Claim 19
Dependent Claim
140 words
A catalytic composite comprising a combination of a platinum group component, a rhenium component, a tin component, a Group IB component, and an alkali or alkaline earth component with a porous carrier material in an amount sufficient to result in a composite containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin, about 0.01 to about 5 wt. % Group IB metal, and about 0.01 to about 5 wt. % alkali metal or alkaline earth metal, wherein substantially all of the platinum group component, rhenium component, and the Group IB component are present in the corresponding elemental metallic states and wherein substantially all of the tin component is present in an oxidation state above that of the elemental metal.
Claim 20
Dependent Claim
16 words
A catalytic composite as defined in claim 17 wherein the platinum group component is platinum metal.
Claim 21
Dependent Claim
15 words
A catalytic composite as defined in claim 17 wherein the tin component is tin oxide.
Claim 22
Dependent Claim
18 words
A catalytic composite as defined in claim 17 wherein the porous carrier material is a refractory inorganic oxide.
Claim 23
Dependent Claim
17 words
A catalytic composite as defined in claim 20 wherein the refractory inorganic oxide is gamma- or eta-alumina.
Claim 24
Dependent Claim
20 words
A catalytic composite as defined in claim 17 wherein the alkali or alkaline earth component is a compound of potassium.
Claim 25
Dependent Claim
20 words
A catalytic composite as defined in claim 17 wherein the alkali or alkaline earth component is a compound of lithium.
Claim 26
Dependent Claim
15 words
A catalytic composite as defined in claim 17 wherein the Group IB component is copper.
Claim 27
Dependent Claim
15 words
A catalytic composite as defined in claim 17 wherein the Group IB component is silver.
Claim 28
Dependent Claim
15 words
A catalytic composite as defined in claim 17 wherein the Group IB component is gold.
Claim 29
Dependent Claim
36 words
A catalytic composite comprising a combination of the catalytic composite defined in claim 17 with a sulfur component in an amount sufficient to result in a composite containing about 0.05 to about 0.5 wt. % sulfur.
Claim 30
Dependent Claim
22 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon with the catalytic composite defined by claim 17 at dehydrogenation conditions.
Claim 31
Dependent Claim
21 words
A method as defined in claim 28 wherein the dehydrogenatable hydrocarbon is admixed with hydrogen when it contacts the catalytic composite.
Claim 32
Dependent Claim
23 words
A method as defined in claim 28 wherein the dehydrogenatable hydrocarbon is an aliphatic compound containing 2 to 30 carbon atoms per molecule.
Claim 33
Dependent Claim
25 words
A method as defined in claim 28 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 4 to 30 carbon atoms per molecule.
Claim 34
Dependent Claim
26 words
A method as defined in claim 28 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 10 to about 18 carbon atoms per molecule.
Claim 35
Dependent Claim
26 words
A method as defined in claim 28 wherein the dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group of which contains about 2 to 6 carbon atoms.
Claim 36
Dependent Claim
14 words
A method as defined in claim 28 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 37
Dependent Claim
52 words
A method as defined in claim 29 wherein the dehydrogenation conditions include a temperature of about 700° to 1250° F., a pressure of about 0.1 to about 10 atmospheres, an LHSV of about 1 to 40 hr. - 1 and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 38
Dependent Claim
37 words
A method as defined in claim 29 wherein the contacting is performed in the presence of water or a water-producing substance in an amount corresponding to about 100 to about 4000 wt. ppm. based on 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) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |