Patent US1639231A successfully refreshed from Google Patents.
Patent US4083883A successfully refreshed from Google Patents.
US4083883A
Expired / Lapsed
US
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Hydrocarbon dehydrogenation using a platinum or palladium, rhodium, nickel, alkaline or alkaline earth metal catalyst
Assignee: Honeywell UOP LLC
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Filing: 1977-04-15
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Granted: 1978-04-11
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Expires: 1997-04-15
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 or palladium component, a rhodium component, and a nickel component with a porous carrier material. A specific example of the nonacidic catalytic composite disclosed herein is a combination of a platinum or palladium component, a rhodium component, a nickel component, and an alkali or alkaline earth component with a porous carrier material in amounts sufficient to result in a composite containing about 0.01 to 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 5 wt. % nickel and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal. A preferred modifying component for the disclosed catalytic composites is a Group IVA metallic component.
Inventors
- 👤 John C. Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/892; B01J23/8933; B01J23/8966; C07C5/321; C07C5/324; C07C5/325; C07C5/367; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/14; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/46; C07C2523/70; C07C2523/74; C07C2523/755; C07C2523/89; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
90 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, at dehydrogenation conditions, with a catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, and about 0.01 to about 5 wt. % nickel; wherein the platinum or palladium, rhodium and nickel are uniformly dispersed throughout the porous carrier material; and wherein substantially all of the platinum or palladium, rhodium and nickel are present in the elemental metallic state.
Claim 2
Independent Claim
90 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, at dehydrogenation conditions, with a catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, and about 0.01 to about 5 wt. % nickel; wherein the platinum or palladium, rhodium and nickel are uniformly dispersed throughout the porous carrier material; and wherein substantially all of the platinum or palladium, rhodium and nickel are present in the elemental metallic state.
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
17 words
A method as defined in claim 1 wherein the porous carrier material is a refractory inorganic oxide.
Claim 5
Dependent Claim
14 words
A method as defined in claim 3 wherein the refractory inorganic oxide is alumina.
Claim 6
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 7
Dependent Claim
14 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 8
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 9
Dependent Claim
49 words
A method as defined in claim 2 wherein the dehydrogenation conditions include a temperature of 700° to about 1200° F., a pressure of 0.1 to 10 atmospheres, a LHSV of 1 to 40 hr. -1 , and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 10
Dependent Claim
42 words
A method as defined in claim 1 wherein the composite contains, on an elemental basis, about 0.05 to about 1 wt. % platinum or palladium, about 0.05 to about 1 wt. % rhodium and about 0.05 to about 2 wt. % nickel.
Claim 11
Dependent Claim
50 words
A method as defined in claim 1 wherein the metals content of the catalytic composite is adjusted so that the atomic ratio of rhodium to platinum or palladium is about 0.1:1 to about 2:1 and the atomic ratio of nickel to platinum or palladium is about 0.2:1 to about 40:1.
Claim 12
Dependent Claim
48 words
A method as defined in claim 1 wherein the catalytic composite contains, on an elemental basis, about 0.01 to about 5 wt. % Group IVA metal and wherein substantially all of the Group IVA metal is present in an oxidation state above that of the corresponding elemental metal.
Claim 13
Dependent Claim
14 words
A method as defined in claim 11 wherein the Group IVA metal is germanium.
Claim 14
Dependent Claim
14 words
A method as defined in claim 11 wherein the Group IVA metal is tin.
Claim 15
Dependent Claim
14 words
A method as defined in claim 11 wherein the Group IVA metal is lead.
Claim 16
Independent Claim
133 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, 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 or palladium, about 0.01 to about 2 wt. % rhodium, about 0.1 to about 5 wt. % alkali metal or alkaline earth metal, and about 0.01 to about 5 wt. % nickel; wherein the platinum or palladium, rhodium, nickel and alkali metal or alkaline earth metal are uniformly dispersed throughout the porous carrier material; wherein substantially all of the platinum or palladium, rhodium and nickel are present in the elemental metallic state; and wherein substantially all of the alkali metal or alkaline earth metal is present in an oxidation state above that of the elemental metal.
Claim 17
Independent Claim
133 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon, 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 or palladium, about 0.01 to about 2 wt. % rhodium, about 0.1 to about 5 wt. % alkali metal or alkaline earth metal, and about 0.01 to about 5 wt. % nickel; wherein the platinum or palladium, rhodium, nickel and alkali metal or alkaline earth metal are uniformly dispersed throughout the porous carrier material; wherein substantially all of the platinum or palladium, rhodium and nickel are present in the elemental metallic state; and wherein substantially all of the alkali metal or alkaline earth metal is present in an oxidation state above that of the elemental metal.
Claim 18
Dependent Claim
17 words
A method as defined in claim 15 wherein the porous carrier material is a refractory inorganic oxide.
Claim 19
Dependent Claim
14 words
A method as defined in claim 16 wherein the refractory inorganic oxide is alumina.
Claim 20
Dependent Claim
17 words
A method as defined in claim 15 wherein the alkali metal or alkaline earth metal is potassium.
Claim 21
Dependent Claim
17 words
A method as defined in claim 15 wherein the alkali metal or alkaline earth metal is lithium.
Claim 22
Dependent Claim
55 words
A method as defined in claim 15 wherein the composite contains, on an elemental basis, about 0.05 to about 1 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.05 to about 2 wt. % nickel and about 0.25 to about 3.5 wt. % alkali metal or alkaline earth metal.
Claim 23
Dependent Claim
66 words
A method as defined in claim 15 wherein the metals contents thereof is adjusted so that the atomic ratio of rhodium to platinum or palladium is about 0.1:1 to about 2:1, the atomic ratio of alkali metal or alkaline earth metal to platinum or palladium is about 5:1 to about 100:1 and the atomic ratio of nickel to platinum or palladium is about 0.2:1 to 40:1.
Claim 24
Dependent Claim
48 words
A method as defined in claim 15 wherein the catalytic composite contains, on an elemental basis, about 0.01 to about 5 wt. % Group IVA metal and wherein substantially all of the Group IVA metal is present in an oxidation state above that of the corresponding elemental metal.
Claim 25
Dependent Claim
14 words
A method as defined in claim 22 wherein the Group IVA metal is germanium.
Claim 26
Dependent Claim
14 words
A method as defined in claim 22 wherein the Group IVA metal is tin.
Claim 27
Dependent Claim
14 words
A method as defined in claim 22 wherein the Group IVA metal is lead.
Claim 28
Dependent Claim
21 words
A method as defined in claim 15 wherein the dehydrogenatable hydrocarbon is admixed with hydrogen when it contacts the catalytic composite.
Claim 29
Dependent Claim
25 words
A method as defined in claim 15 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 4 to 30 carbon atoms per molecule.
Claim 30
Dependent Claim
26 words
A method as defined in claim 15 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 10 to about 18 carbon atoms per molecule.
Claim 31
Dependent Claim
26 words
A method as defined in claim 15 wherein the dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group of which contains about 2 to 6 carbon atoms.
Claim 32
Dependent Claim
14 words
A method as defined in claim 15 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 33
Dependent Claim
53 words
A method as defined in claim 26 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 40 hr. -1 , and a hydrogen to hydrocarbon mole ratio of about 1:1 to about 20:1.
Claim 34
Dependent Claim
37 words
A method as defined in claim 26 wherein the contacting is performed in the presence of water or a water-producing substance in an amount corresponding to about 50 to about 10,000 wt. ppm. based on hydrocarbon charge.
References Cited (Backward Citations)
US3210296A
Cited
US3562346A
Cited
US3686340A
Cited
US3647719A
Cited
US3840471A
Cited
US3825487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |