US6635600B1
Expired / Lapsed
US
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Hydrocarbon hydrogenation catalyst and process
Assignee: Chevron Phillips Chemical Co LP
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Filing: 2000-08-15
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Granted: 2003-10-21
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Expires: 2020-08-15
Abstract
Abstract A supported hydrogenation catalyst composition is disclosed which comprises palladium, an inorganic support such as alumina, and a selectivity enhancer selected from the group consisting of silver, phosphorus, sulfur, and combinations of two or more thereof. Also disclosed is a selective hydrogenation process in which highly unsaturated hydrocarbons such as diolefins and/or alkynes are hydrogenated with hydrogen to less unsaturated hydrocarbons such as monoolefins.
Inventors
- 👤 James B. Kimble
- 👤 Joseph J. Bergmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; B01J23/48; B01J23/50; C07C5/03; C10; C10G; C10G45/00; C10G45/32; C10G45/34; C10G45/40; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/055; C07C2527/14; C07C2527/16; C07C2527/167
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
54 words
A composition for use as a highly unsaturated hydrocarbon hydrogenation catalyst, said composition consists essentially of palladium, silver, an inorganic support, and a selectivity enhancer selected from the group consisting of phosphorus, phosphorus compounds, sulfur, sulfur compounds, and combinations of two or more thereof, wherein said palladium is present as skin on said supprt.
Claim 2
Dependent Claim
54 words
A composition for use as a highly unsaturated hydrocarbon hydrogenation catalyst, said composition consists essentially of palladium, silver, an inorganic support, and a selectivity enhancer selected from the group consisting of phosphorus, phosphorus compounds, sulfur, sulfur compounds, and combinations of two or more thereof, wherein said palladium is present as skin on said supprt.
Claim 3
Dependent Claim
33 words
A composition according to claim 1 wherein said support is selected from the group consisting of spinel, alumina, silica, titania, zirconia, aluminosilicate, zinc aluminate, zinc titanate and combinations of two or more thereof.
Claim 4
Dependent Claim
12 words
A composition according to claim 1 wherein said inorganic support is alumina.
Claim 5
Dependent Claim
11 words
A composition according to claim 1 wherein selectivity enhancer is phosphorus.
Claim 6
Dependent Claim
11 words
A composition according to claim 1 wherein selectivity enhancer is sulfur.
Claim 7
Dependent Claim
36 words
A composition according to claim 1 wherein said selectivity enhancer is selected from the group consisting of potassium phosphate, sodium phosphate, ammonium phosphate, sodium sulfate, potassium sulfate, ammonium sulfate, and combinations of two or more thereof.
Claim 8
Dependent Claim
13 words
A composition according to claim 1 wherein said selectivity enhancer is potassium phosphate.
Claim 9
Dependent Claim
13 words
A composition according to claim 3 wherein said selectivity enhancer is potassium phosphate.
Claim 10
Dependent Claim
13 words
A composition according to claim 1 wherein said selectivity enhancer is potassium sulfate.
Claim 11
Dependent Claim
13 words
A composition according to claim 3 wherein said selectivity enhancer is potassium sulfate.
Claim 12
Dependent Claim
90 words
A composition for use as a highly unsaturated hydrocarbon hydrogenation catalyst, said composition consists essentially of palladium, silver, an inorganic support, and a selectivity enhancer, wherein said palladium is present as skin on said support and wherein said support is selected from the group consisting of spinel, alumina, silica, titania, zirconia, an aluminosilicate, and combinations of two or more thereof; and said selectivity enhancer is selected from the group consisting of potassium phosphate, sodium phosphate, ammonium phosphate, sodium sulfate, potassium sulfate, ammonium sulfate, and combinations of two or more thereof.
Claim 13
Dependent Claim
90 words
A composition for use as a highly unsaturated hydrocarbon hydrogenation catalyst, said composition consists essentially of palladium, silver, an inorganic support, and a selectivity enhancer, wherein said palladium is present as skin on said support and wherein said support is selected from the group consisting of spinel, alumina, silica, titania, zirconia, an aluminosilicate, and combinations of two or more thereof; and said selectivity enhancer is selected from the group consisting of potassium phosphate, sodium phosphate, ammonium phosphate, sodium sulfate, potassium sulfate, ammonium sulfate, and combinations of two or more thereof.
Claim 14
Dependent Claim
38 words
A composition according to claim 11 wherein said support is alumina; said selectivity enhancer is selected from the group consisting of potassium phosphate, potassium sulfate, and combinations thereof; and said palladium is present as skin on said support.
Claim 15
Dependent Claim
46 words
A composition for use as a highly unsaturated hydrocarbon hydrogenation catalyst, said composition consists essentially of palladium, silver, alumina, and a selectivity enhancer selected from the group consisting of potassium phosphate, potassium sulfate, and combinations thereof wherein said palladium is present as skin on said alumina.
Claim 16
Dependent Claim
46 words
A composition for use as a highly unsaturated hydrocarbon hydrogenation catalyst, said composition consists essentially of palladium, silver, alumina, and a selectivity enhancer selected from the group consisting of potassium phosphate, potassium sulfate, and combinations thereof wherein said palladium is present as skin on said alumina.
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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) | 2006-10-20 | 2007-04-21 | 2007-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-10-20 | 2011-04-21 | 2011-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-10-20 | 2015-04-21 | 2015-10-21 | $7700.00 | Window Closed / Lapsed |