US5215652A
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Method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor
Assignee: PLATINUM PLUS Inc 111 ROWAYTON AVENUE ROWAYTON CT 06853 A DE CORP
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Filing: 1989-01-27
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Granted: 1993-06-01
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Expires: 2009-01-27
Abstract
Abstract The invention presented involves a method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, the method comprising admixing with the feedstock, recycle stream or hydrogen stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal coordination composition which is a) resistant to breakdown under ambient temperatures; b) capable of breakdown at temperatures existing in the vicinity of the catalyst; and c) does not contain a disadvantageous amount of phosphorus, arsenic, sulfur, antimony or halides.
Inventors
- 👤 W. Robert Epperly
- 👤 Barry N. Sprague
- 👤 Danny T. Kelso
- 👤 Wayne E. Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:43
CPC Classifications
F; F02; F02B; F02B51/00; F02B51/02; B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; B01J38/00; B01J38/48; B01J38/68; C; C07; C07F; C07F15/00; C07F15/0006; C07F15/0033; C07F15/006; C07F15/0073; C07F15/0086; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1814; C10L1/30; C10L1/301; C10L1/305; C10L10/00; C10L10/02; C10L10/06; C10L3/00; C10L3/003; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/023; F01N3/033; F01N3/035; F01N3/037; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/206; C10L1/16; C10L1/1608; C10L1/182; C10L1/1822; C10L1/1824; C10L1/185; C10L1/1852; C10L1/1855; C10L1/1857; C10L1/22; C10L1/222; C10L1/2227; C10L1/228; C10L1/2286; C10L1/23; C10L1/231; F01N2430/00; F01N2430/04; F02B3/00; F02B3/06; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
94 words
A method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, which catalyst comprises a platinum group metal on a support, the method comprising admixing with the feedstock, recycle stream or hydrogen stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal coordination composition wherein said composition a) has a breakdown temperature between about 40° C. and about 570° C.; and b) is substantially free from a disadvantageous amount of phosphorus, arsenic, sulfur, antimony or halides, wherein platinum group metal is caused to be deposited on said catalyst.
Claim 2
Independent Claim
94 words
A method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, which catalyst comprises a platinum group metal on a support, the method comprising admixing with the feedstock, recycle stream or hydrogen stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal coordination composition wherein said composition a) has a breakdown temperature between about 40° C. and about 570° C.; and b) is substantially free from a disadvantageous amount of phosphorus, arsenic, sulfur, antimony or halides, wherein platinum group metal is caused to be deposited on said catalyst.
Claim 3
Dependent Claim
245 words
The method of claim 1 wherein said composition is selected from the group consisting of a) a composition of the general formula L.sup.1 PtR.sup.1 R.sup.2 wherein L 1 is either a single cyclic polyolefin or nitrogenous bidentate ligand or a pair of nitrogenous or acetylenic monodentate ligands; and R 1 and R 2 are each, independently, substituted or unsubstituted methyl, benzyl, aryl, cyclooctadiene or pentamethyl cyclopentadiene; b) a composition of the general formula L.sup.2 M.sup.1 R.sup.3 wherein L 2 is either a single cyclic polyolefin or nitrogenous bidentate ligand or a pair of nitrogenous or acetylenic monodentate ligands; M 1 is rhodium or iridium; and R 3 is cyclopentadiene or pentamethyl cyclopentadiene; c) a composition of the general formula L.sup.3 M.sup.2 (C.sub.4 R.sup.4.sub.4) wherein L 3 is either a single cyclic polyolefin or nitrogenous bidentate ligand or a pair of nitrogenous monodentate ligands; M 2 is platinum, palladium, rhodium or iridium; and R 4 is COOR 5 , wherein R 5 is hydrogen or alkyl having from 1 to 10 carbons; d) a composition of the general formula L.sup.4 M.sup.3 (COOR.sup.6).sub.2 or a dimer thereof, wherein L 4 is a non-nitrogenous cyclic polyolefin ligand; M 3 is platinum or iridium; and R 6 is alkyl; and e) a composition comprising the reaction product of L 5 RhX and R 7 MgX wherein L 5 is a non-nitrogenous cyclic polyolefin ligand; R 7 is methyl, benzyl, aryl, cyclopentadiene or pentamethyl cyclopentadiene; and X is a halide.
Claim 4
Dependent Claim
32 words
The method of claim 2 wherein L 1 , L 2 and L 3 are selected from the group consisting of cyclopentadiene, cyclooctadiene, pentamethyl cyclopentadiene, cyclooctatetrene, o-phenantholine, o-toluidine, norbornadiene, pyridine and bipyridine.
Claim 5
Dependent Claim
22 words
The method of claim 2 wherein L 4 and L 5 are selected from the group consisting of cyclooctadiene and pentamethyl cyclopentadiene.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein said additive further comprises a feedstock- or recycle stream-soluble solvent for said composition.
Claim 7
Dependent Claim
29 words
The method of claim 5 wherein said solvent is selected from the group consisting of 1 to 4 carbon alcohols, acetone, tetrahydrofuran, methyl tertiary butyl ether and mixtures thereof.
Claim 8
Dependent Claim
24 words
The method of claim 1 wherein said additive is introduced into the feedstock, the recycle stream or the hydrogen stream in a continuous manner.
Claim 9
Dependent Claim
34 words
The method of claim 7 wherein said additive is introduced into the feedstock or the recycle stream in an amount of about 0.01 to about 10.0 parts per million of said platinum group metal.
Claim 10
Dependent Claim
39 words
The process of claim 7 wherein said additive is introduced into the hydrogen stream at a rate of about 0.000002 to about 0.002 grams of platinum group metal per hour per 100 grams of catalyst desired to be present.
Claim 11
Dependent Claim
24 words
The method of claim 1 wherein said additive is introduced into the feedstock, the recycle stream or the hydrogen stream in an intermittent manner.
Claim 12
Dependent Claim
33 words
The method of claim 10 wherein said additive is introduced into the feedstock or recycle stream in an amount of about 10 to about 10,000 parts per million of said platinum group metal.
Claim 13
Dependent Claim
39 words
The process of claim 10 wherein said additive is introduced into the hydrogen stream at a rate of about 0.002 to about 2.0 grams of platinum group metal per hour per 100 grams of catalyst desired to be present.
Claim 14
Independent Claim
99 words
A method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, which catalyst comprises a platinum group metal on a support, the method comprising intermittently admixing with the feedstock or recycle stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal coordination composition at a temperature of below about 200° C. wherein said composition a) has a breakdown temperature between about 40° and about 570° C.; and b) is substantially free from a disadvantageous amount of phosphorus, arsenic, antimony or halides, wherein platinum group metal is caused to be deposited on said catalyst.
Claim 15
Independent Claim
99 words
A method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, which catalyst comprises a platinum group metal on a support, the method comprising intermittently admixing with the feedstock or recycle stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal coordination composition at a temperature of below about 200° C. wherein said composition a) has a breakdown temperature between about 40° and about 570° C.; and b) is substantially free from a disadvantageous amount of phosphorus, arsenic, antimony or halides, wherein platinum group metal is caused to be deposited on said catalyst.
Claim 16
Dependent Claim
245 words
The method of claim 13 wherein said composition is selected from the group consisting of a) a composition of the general formula L.sup.1 PtR.sup.1 R.sup.2 wherein L 1 is either a single cyclic polyolefin or nitrogenous bidentate ligand or a pair of nitrogenous or acetylenic monodentate ligands; and R 1 and R 2 are each, independently, substituted or unsubstituted methyl, benzyl, aryl, cyclooctadiene or pentamethyl cyclopentadiene; b) a composition of the general formula L.sup.2 M.sup.1 R.sup.3 wherein L 2 is either a single cyclic polyolefin or nitrogenous bidentate ligand or a pair of nitrogenous or acetylenic monodentate ligands; M 1 is rhodium or iridium; and R 3 is cyclopentadiene or pentamethyl cyclopentadiene; c) a composition of the general formula L.sup.3 M.sup.2 (C.sub.4 R.sup.4.sub.4) wherein L 3 is either a single cyclic polyolefin or nitrogenous bidentate ligand or a pair of nitrogenous monodentate ligands; M 2 is platinum, palladium, rhodium or iridium; and R 4 is COOR 5 , wherein R 5 is hydrogen or alkyl having from 1 to 10 carbons; d) a composition of the general formula L.sup.4 M.sup.3 (COOR.sup.6).sub.2 or a dimer thereof, wherein L 4 is a non-nitrogenous cyclic polyolefin ligand; M 3 is platinum or iridium; and R 6 is alkyl; and e) a composition comprising the reaction product of L 5 RhX and R 7 MgX wherein L 5 is a non-nitrogenous cyclic polyolefin ligand; R 7 is methyl, benzyl, aryl, cyclopentadiene or pentamethyl cyclopentadiene; and X is a halide.
Claim 17
Dependent Claim
32 words
The method of claim 14 wherein L 1 , L 2 and L 3 are selected from the group consisting of cyclopentadiene, cyclooctadiene, pentamethyl cyclopentadiene, cyclooctatetrene, o-phenantholine, o-toluidine, norbornadiene, pyridine and bipyridine.
Claim 18
Dependent Claim
22 words
The method of claim 14 wherein L 4 and L 5 are selected from the group consisting of cyclooctadiene and pentamethyl cyclopentadiene.
Claim 19
Dependent Claim
19 words
The method of claim 14 wherein said additive further comprises a feedstock- or recycle stream-soluble solvent for said composition.
Claim 20
Dependent Claim
29 words
The method of claim 17 wherein said solvent is selected from the group consisting of 1 to 4 carbon alcohols, acetone, tetrahydrofuran, methyl tertiary butyl ether and mixtures thereof.
Claim 21
Dependent Claim
32 words
The method of claim 13 wherein said additive is introduced into the feedstock or recycle stream in an amount of about 10 to about 10,000 parts per million of platinum group metal.
References Cited (Backward Citations)
US2086775A
Cited
US2151432A
Cited
US2875223A
Cited
US3369035A
Cited
US3397214A
Cited
US4295816A
Cited
US4224235A
Cited
US4242099A
Cited
US4207078A
Cited
US4715948A
Cited
US4741820A
Cited
US4795549A
Cited
US4787969A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-05-31 | 1996-11-30 | 1997-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-31 | 2000-11-30 | 2001-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-31 | 2004-11-30 | 2005-06-01 | $7700.00 | Window Closed / Lapsed |