US6437206B1
Expired / Lapsed
US
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Catalyst and processes for the selective hydrogenation of unsaturated compounds in hydrocarbon streams
Assignee: BASF SE
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Filing: 1999-08-30
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Granted: 2002-08-20
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Expires: 2019-08-30
Abstract
Abstract Unsaturated compounds in hydrocarbon streams are hydrogenated over a catalyst which, in the unused state, shows reflections which correspond to the following lattice plane spacings in the X-ray diffraction pattern [in 10-10m]: 4.52, 2.85, 2.73, 2.44, 2.31, 2.26, 2.02, 1.91, 1.80, 1.54, 1.51, 1.49, 1.45 and 1.39 and have specific relative intensities.
Inventors
- 👤 Gerald Meyer
- 👤 Ekkehard Schwab
- 👤 Michael Hesse
- 👤 Peter Trübenbach
- 👤 Hans-Joachim Müller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:45
CPC Classifications
B; B01; B01J; B01J35/00; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/38; B01J23/40; B01J23/54; B01J23/66; C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/05; C07C5/08; C07C5/09; C10; C10G; C10G45/00; C10G45/32; C10G45/34; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/48; C07C2523/50; C07C2523/70; C07C2523/72
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
A catalyst which comprises at least one metal having hydrogenation activity on an alumina carrier and, in the unused state, shows reflections in the X-ray diffraction pattern which correspond to the following lattice plane spacings: Lattice plane spacing d [10 −10 m] Relative intensity I/I o 4.52 0.05 to 0.1 2.85 0.35 to 0.45 2.73 0.65 to 0.8 2.44 0.45 to 0.55 2.31 0.35 to 0.45 2.26 0.35 to 0.45 2.02 0.45 to 0.6 1.91 0.3 to 0.4 1.80 0.1 to 0.25 1.54 0.25 to 0.35 1.51 0 to 0.35 1.49 0.2 to 0.3 1.45 0.25 to 0.35 1.39 1
Claim 2
Dependent Claim
100 words
A catalyst which comprises at least one metal having hydrogenation activity on an alumina carrier and, in the unused state, shows reflections in the X-ray diffraction pattern which correspond to the following lattice plane spacings: Lattice plane spacing d [10 −10 m] Relative intensity I/I o 4.52 0.05 to 0.1 2.85 0.35 to 0.45 2.73 0.65 to 0.8 2.44 0.45 to 0.55 2.31 0.35 to 0.45 2.26 0.35 to 0.45 2.02 0.45 to 0.6 1.91 0.3 to 0.4 1.80 0.1 to 0.25 1.54 0.25 to 0.35 1.51 0 to 0.35 1.49 0.2 to 0.3 1.45 0.25 to 0.35 1.39 1
Claim 3
Dependent Claim
51 words
A catalyst as claimed in claim 1 , which, in the unused state, shows at least one additional reflection in the X-ray diffraction pattern which corresponds to one of the following lattice plane spacings [in 10 −10 m]: 3.48, 2.55, 2.38, 2.09, 1.78, 1.74, 1.62, 1.60, 1.57, 1.42, 1.40 and 1.37.
Claim 4
Dependent Claim
36 words
A catalyst as claimed in claim 1 , the metal having hydrogenation activity or the metals having hydrogenation activity being a metal or metals from group 8, 9 or 10 of the Periodic Table of Elements.
Claim 5
Dependent Claim
17 words
A catalyst as claimed in claim 1 , the metal having hydrogenation activity being platinum and/or palladium.
Claim 6
Dependent Claim
42 words
A catalyst as claimed in claim 4 , the metal having hydrogenation activity being palladium and being contained in an amount of at least 0.05% by weight and not more than 2% by weight, based on the total weight of the catalyst.
Claim 7
Dependent Claim
32 words
A catalyst as claimed in claim 1 , the catalyst comprising at least one metal of group 11 of the Periodic Table of Elements in addition to the metal having hydrogenation activity.
Claim 8
Dependent Claim
23 words
A catalyst as claimed in claim 6 , the metal of group 11 of the Periodic Table of Elements being copper and/or silver.
Claim 9
Dependent Claim
42 words
A catalyst as claimed in claim 7 , the metal of group 11 being silver and being contained in an amount of at least 0.01% by weight and not more than 1% by weight, based on the total weight of the catalyst.
Claim 10
Dependent Claim
83 words
A process for the preparation of a catalyst described in claim 1 by treating an aluminum-containing raw material with water, dilute acid or dilute base, shaping to give moldings, drying the moldings, calcining the dried moldings, impregnating the calcined moldings with solution containing the at least one metal having hydrogenation activity to be deposited, drying the impregnated moldings and finishing the catalyst by calcining the impregnated and dried moldings, wherein the dried moldings are calcined at above 900° C. and below 1100° C.
Claim 11
Dependent Claim
28 words
A process as claimed in claim 9 , wherein the dried moldings are calcined over a period of at least 0.5 hour and not more than 5 hours.
Claim 12
Dependent Claim
62 words
A process for the selective hydrogenation of unsaturated compounds in hydrocarbon streams in the gas or liquid phase at from 0° C. to 180° C. and from 2 to 50 bar, wherein the selective hydrogenation is carried out in one or more reaction stages, comprising contacting the hydrocarbon stream with the catalyst described in claim 1 in at least one reaction stage.
Claim 13
Dependent Claim
19 words
A process as claimed in claim 11 , wherein acetylene in a C2 stream is hydrogenated selectively to ethylene.
Claim 14
Dependent Claim
21 words
A process as claimed in claim 11 , wherein propyne and/or propadiene in a C3 stream are hydrogenated selectively to propylene.
Claim 15
Dependent Claim
27 words
A process as claimed in claim 11 , wherein 1-butyne, 2-butyne, 1,2-butadiene and/or vinylacetylene in a C4 stream are hydrogenated selectively to 1,3-butadiene, 1-butene, cis-2-butene and/or trans-2-butene.
Claim 16
Dependent Claim
27 words
A process as claimed in claim 11 , wherein 1-butyne, 2-butyne, 1,2-butadiene, 1,3-butadiene and/or vinylacetylene in a C4 stream are hydrogenated selectively to 1-butene, cis-2-butene and/or trans-2-butene.
Claim 17
Dependent Claim
37 words
A process as claimed in claim 11 , wherein unsaturated compounds and/or unsaturated substituents of aromatic compounds in a C5+ stream are hydrogenated selectively to more highly saturated compounds and/or aromatic compounds having more highly saturated substituents.
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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) | 2005-08-19 | 2006-02-18 | 2006-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-19 | 2010-02-18 | 2010-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-19 | 2014-02-18 | 2014-08-20 | $7700.00 | Window Closed / Lapsed |