US4048245A
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Dehydrogenation method and nonacidic multimetallic catalytic composite for use therein
Assignee: Honeywell UOP LLC
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Filing: 1976-05-24
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Granted: 1977-09-13
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Expires: 1996-05-24
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 cobalt component, and a tin component with a porous carrier material. A specific example of the nonacidic catalytic composite disclosed herein is a combination of a platinum group component, a cobalt component, a tin 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 about 2 wt. % platinum group metal, about 0.1 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % tin and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.
Inventors
- 👤 Ernest L. Pollitzer
- 👤 John C. Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:02
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/14; B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8933; B01J23/8966; B01J27/00; B01J27/06; B01J27/08; B01J35/00; B01J35/30; B01J35/391; B01J35/393; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; C07C5/367; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B01J35/60; 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; C07C2523/75; C07C2523/89; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
163 words
A method for dehydrogenating a 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 group metal, about 0.1 to about 5 wt. % cobalt, and about 0.01 to about 5 wt. % tin; wherein the platinum group metal, catalytically available cobalt and tin are uniformly dispersed throughout the porous carrier material; wherein the average crystallite size of the tin and catalytically available cobalt is less than 100 Angstroms in maximum dimension; wherein substantially all of the platinum group metal is present in the elemental metallic state; wherein substantially all of the tin is present in an oxidation state above that of the elemental metal; and wherein substantially all of the catalytically available cobalt is present in the element metallic state or in a state which is reducible to the elemental metallic state under dehydrogenation conditions or in a mixture of these states.
Claim 2
Independent Claim
163 words
A method for dehydrogenating a 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 group metal, about 0.1 to about 5 wt. % cobalt, and about 0.01 to about 5 wt. % tin; wherein the platinum group metal, catalytically available cobalt and tin are uniformly dispersed throughout the porous carrier material; wherein the average crystallite size of the tin and catalytically available cobalt is less than 100 Angstroms in maximum dimension; wherein substantially all of the platinum group metal is present in the elemental metallic state; wherein substantially all of the tin is present in an oxidation state above that of the elemental metal; and wherein substantially all of the catalytically available cobalt is present in the element metallic state or in a state which is reducible to the elemental metallic state under dehydrogenation conditions or in a mixture of these states.
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 metal is platinum.
Claim 5
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group metal is iridium.
Claim 6
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group metal is rhodium.
Claim 7
Dependent Claim
14 words
A method as defined in claim 1 wherein the platinum group metal is palladium.
Claim 8
Dependent Claim
13 words
A method as defined in claim 1 wherein the catalytic composite is sulfur-free.
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
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 12
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 13
Dependent Claim
14 words
A method as defined in claim 1 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 14
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 15
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, 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
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 group metal, about 0.5 to about 2 wt. % cobalt and about 0.05 to about 2 wt. % tin.
Claim 17
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 tin to platinum group metal is about 0.1:1 to about 13:1 and the atomic ratio of cobalt to platinum group metal is about 0.15:1 to about 66:1.
Claim 18
Dependent Claim
22 words
A method as defined in claim 1 wherein substantially all of the tin is present in the catalytic composite as tin oxide.
Claim 19
Dependent Claim
36 words
A method as defined in claim 2 wherein substantially all of the catalytically available cobalt contained in the composite is present in the elemental metallic state after the method is started-up and lined-out at dehydrogenation conditions.
Claim 20
Dependent Claim
176 words
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 0.1 to about 5 wt. % cobalt, about 0.1 to about 5 wt. % alkali metal or alkaline earth metal, and about 0.01 to about 5 wt. % tin; wherein the platinum group metal, catalytically available cobalt, tin and alkali metal or alkaline earth metal are uniformly dispersed througout the porous carrier material; wherein the average crystalite size of the tin and catalytically available cobalt is less than 100 Angstroms in maximum dimension; wherein substantially all of the platinum group metal is present in the elemental metallic state; wherein substantially all of the catalytically available cobalt is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under dehydrogenation conditions or in a mixture of these states; and wherein substantially all of the tin and alkali metal or alkaline earth metal are present in an oxidation state above that of the elemental metal.
Claim 21
Dependent Claim
176 words
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 0.1 to about 5 wt. % cobalt, about 0.1 to about 5 wt. % alkali metal or alkaline earth metal, and about 0.01 to about 5 wt. % tin; wherein the platinum group metal, catalytically available cobalt, tin and alkali metal or alkaline earth metal are uniformly dispersed througout the porous carrier material; wherein the average crystalite size of the tin and catalytically available cobalt is less than 100 Angstroms in maximum dimension; wherein substantially all of the platinum group metal is present in the elemental metallic state; wherein substantially all of the catalytically available cobalt is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under dehydrogenation conditions or in a mixture of these states; and wherein substantially all of the tin and alkali metal or alkaline earth metal are present in an oxidation state above that of the elemental metal.
Claim 22
Dependent Claim
19 words
A nonacidic catalytic composite as defined in claim 19 wherein the porous carrier material is a refractory inorganic oxide.
Claim 23
Dependent Claim
16 words
A nonacidic catalytic composite as defined in claim 20 wherein the refractory inorganic oxide is alumina.
Claim 24
Dependent Claim
19 words
A nonacidic catalytic composite as defined in claim 19 wherein the alkali metal or alkaline earth metal is potassium.
Claim 25
Dependent Claim
19 words
A nonacidic catalytic composite as defined in claim 19 wherein the alkali metal or alkaline earth metal is lithium.
Claim 26
Dependent Claim
15 words
A nonacidic catalytic composite as defined in claim 19 wherein the catalytic composite is sulfur-free.
Claim 27
Dependent Claim
57 words
A nonacidic catalytic composite as defined in claim 19 wherein the composite contains, on an elemental basis, about 0.05 to about 1 wt. % platinum group metal, about 0.5 to about 2 wt. % cobalt, about 0.05 to about 2 wt. % tin and about 0.25 to about 3.5 wt. % alkali metal or alkaline earth metal.
Claim 28
Dependent Claim
68 words
A nonacidic catalytic composite as defined in claim 19 wherein the metals contents thereof is adjusted so that the atomic ratio of tin to platinum group metal is about 0.1:1 to about 13:1, the atomic ratio of alkali metal or alkaline earth metal to platinum group metal is about 5:1 to about 100:1 and the atomic ratio of cobalt to platinum group metal is about 0.15:1 to 66:1.
Claim 29
Dependent Claim
23 words
A method for dehydrogenating a dehydrogenatable hydrocarbon comprising contacting the hydrocarbon with the nonacidic catalytic composite defined by claim 19 at dehydrogenation conditions.
Claim 30
Dependent Claim
21 words
A method as defined in claim 27 wherein the dehydrogenatable hydrocarbon is admixed with hydrogen when it contacts the catalytic composite.
Claim 31
Dependent Claim
23 words
A method as defined in claim 27 wherein the dehydrogenatable hydrocarbon is an aliphatic compound containing 2 to 30 carbon atoms per molecule.
Claim 32
Dependent Claim
25 words
A method as defined in claim 27 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 4 to 30 carbon atoms per molecule.
Claim 33
Dependent Claim
26 words
A method as defined in claim 27 wherein the dehydrogenatable hydrocarbon is a normal paraffin hydrocarbon containing about 10 to about 18 carbon atoms per molecule.
Claim 34
Dependent Claim
26 words
A method as defined in claim 27 wherein the dehydrogenatable hydrocarbon is an alkylaromatic, the alkyl group of which contains about 2 to 6 carbon atoms.
Claim 35
Dependent Claim
14 words
A method as defined in claim 27 wherein the dehydrogenatable hydrocarbon is a naphthene.
Claim 36
Dependent Claim
53 words
A method as defined in claim 28 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 moles ratio of about 1:1 to about 20:1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |