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US5258348A
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Supported catalyst for the dehydrogenation of hydrocarbons and method for the preparation of the catalyst
Assignee: Trinseo Europe GmbH
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Filing: 1990-10-29
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Granted: 1993-11-02
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Expires: 2010-10-29
Abstract
Abstract PCT No. PCT/EP90/01810 Sec. 371 Date Apr. 21, 1992 Sec. 102(e) Date Apr. 21, 1992 PCT Filed Oct. 29, 1990 PCT Pub. No. WO91/06366 PCT Pub. Date May 16, 1991.A catalyst comprising a preshaped porous support material having applied thereto in finely divided form an active compound chosen from at least one compound of vanadium, chromium, manganese, iron, cobalt, nickel, copper and zinc, and optionally a promoter chosen from a least an alkali or alkaline earth metal metal compound, method for the preparation thereof and use thereof in the dehydrogenation of hydrocarbons.
Inventors
- 👤 Frederik R. Van Buren
- 👤 Dick E. Stobbe
- 👤 John W. Geus
- 👤 Adrianus J. van Dillen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:25
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/745; B01J23/76; B01J23/78; B01J37/00; B01J37/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
112 words
Catalyst comprising a preshaped porous support material, said preshaped porous support material being obtained by subjecting a corresponding powderous support material to a shaping operation and/or thermal treatment causing sintering of powder particles, and having a specific surface area of from 0.1 to 50 m 2 /g, at least a compound of iron in an amount of from 0.1 to 20 wt. % and at least an alkali metal and/or alkaline earth metal compound as promoter in an amount of from 0.1 to 20 wt. %, the amounts being calculated as metal based on the total catalyst weight, said compounds being applied to the support in a finely divided form by impregnation.
Claim 2
Dependent Claim
112 words
Catalyst comprising a preshaped porous support material, said preshaped porous support material being obtained by subjecting a corresponding powderous support material to a shaping operation and/or thermal treatment causing sintering of powder particles, and having a specific surface area of from 0.1 to 50 m 2 /g, at least a compound of iron in an amount of from 0.1 to 20 wt. % and at least an alkali metal and/or alkaline earth metal compound as promoter in an amount of from 0.1 to 20 wt. %, the amounts being calculated as metal based on the total catalyst weight, said compounds being applied to the support in a finely divided form by impregnation.
Claim 3
Dependent Claim
20 words
Catalyst according to claim 1 wherein the preshaped porous support material has an average diameter of at least 0.5 mm.
Claim 4
Dependent Claim
33 words
Catalyst according to claim 2 wherein the specific surface area of the preshaped porous support material is from 0.1 to 25 m 2 /gram and the average diameter from 1 to 20 mm.
Claim 5
Dependent Claim
14 words
Catalyst according to claim 1 wherein the preshaped porous support material is magnesium oxide.
Claim 6
Dependent Claim
17 words
Catalyst according to claim 1 wherein the catalytically active component contains at least an oxide of iron.
Claim 7
Dependent Claim
18 words
Catalyst according to claim 1 wherein a hydroxide, oxide or carbonate of potassium has been applied as promoter.
Claim 8
Dependent Claim
101 words
A method for the preparation of the catalyst according to claim 1 wherein the method comprises the steps of impregnating the preshaped porous support material at least once with a solution containing the catalytically active component on a precursor thereof, followed by vaporizing or heating the impregnated support material to remove the solvent, and prior to, simultaneously with or following the above-mentioned impregnation steps, impregnating, at least once, the preshaped porous support material with a solution containing the promoter or precursor thereof, and thereafter vaporizing or heating the support material impregnated with the promoter or precursor thereof to remove the solvent.
Claim 9
Dependent Claim
60 words
The method according to claim 7 wherein the solution of the catalytically active component or precursor thereof contains a complex of the catalytically active component or precursor thereof, the viscosity of which solution does not decrease while heating or vaporizing the solvent, which method further comprises heating the complex of the catalytically active component or precursor thereof to decompose same.
Claim 10
Dependent Claim
44 words
The method according to claim 7 wherein the method further comprises evacuating the support material prior to each impregnation step and using, in each impregnation step, a quantity of solution which essentially corresponds to the pore volume of the support material to be impregnated.
Claim 11
Dependent Claim
36 words
The method according to claim 7 wherein the method further comprises, after each impregnation, drying the support material at a temperature of from 20° to 150° C. and subsequently heating to a temperature of 500°-1000° C.
Claim 12
Dependent Claim
27 words
The method according to claim 8 wherein the viscosity of the solution of the catalytically active component or precursor thereof increases while heating or vaporizing the solvent.
Claim 13
Dependent Claim
108 words
Catalyst comprising a preshaped porous support of magnesium oxide, said preshaped porous support being obtained by subjecting a corresponding powderous support to a shaping operation and/or thermal treatment causing sintering of powder particles, and having a specific surface area of from 0.1 to 50 m 2 /g, at least a compound of iron in an amount of from 0.1 to 20 wt. % and at least a compound of potassium as promoter in an amount of from 0.1 to 20 wt. %, the amounts being calculated as metal based on the total catalyst weight, said compound being applied to the support in a finely divided form by impregnation.
Claim 14
Dependent Claim
108 words
Catalyst comprising a preshaped porous support of magnesium oxide, said preshaped porous support being obtained by subjecting a corresponding powderous support to a shaping operation and/or thermal treatment causing sintering of powder particles, and having a specific surface area of from 0.1 to 50 m 2 /g, at least a compound of iron in an amount of from 0.1 to 20 wt. % and at least a compound of potassium as promoter in an amount of from 0.1 to 20 wt. %, the amounts being calculated as metal based on the total catalyst weight, said compound being applied to the support in a finely divided form by impregnation.
Claim 15
Dependent Claim
20 words
Catalyst according to claim 12 wherein the preshaped porous support material has an average diameter of at least 0.5 mm.
Claim 16
Dependent Claim
34 words
Catalyst according to claim 13 wherein the specific surface area of the preshaped porous support material is from 0.1 to 25 m 2 /g and the average diameter is from 1 to 20 mm.
Claim 17
Dependent Claim
23 words
The method according to claim 7 wherein the method further comprises converting the respective precursor to the catalytically active component or promoter, respectively.
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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) | 1996-11-01 | 1997-05-03 | 1997-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-01 | 2001-05-03 | 2001-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-01 | 2005-05-03 | 2005-11-02 | $7700.00 | Window Closed / Lapsed |