US5460790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic vessel for receiving metal catalysts by deposition from the gas phase
Assignee: Blue Planet Technologies Co LP
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Filing: 1993-03-29
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Granted: 1995-10-24
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Expires: 2013-03-29
Abstract
Abstract A catalytic vessel for adsorbing catalytic metals, such as from automotive exhaust gases, and carrying out three-way catalysis includes an inlet at an upstream end, a plurality of catalytic chambers located downstream of the inlet, and an outlet. At least one of the catalytic chambers contains a plurality of sheet members preferably made of steel and adapted for deposition of a metal selected from the group of noble and non-noble metals, and more particularly from the group including platinum, rhodium, rhenium, palladium, and gold. The vessel may be used in a catalytic system which contains a liquid source of metal catalysts, such as a solution or a gasoline additive, from which the metal catalysts are added to a combustion system, and the catalytic vessel, which collects the metal catalysts and is a site for three-way catalytic conversion of starting materials such as automotive emissions to final products.
Inventors
- 👤 Alexander Shustorovich
- 👤 Eugene Shustorovich
- 👤 Richard Montano
- 👤 Konstantin Solntsev
- 👤 Yuri Buslaev
- 👤 Veniamin Kalner
- 👤 Nikolai Moiseev
- 👤 Aleksandr Bragin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:41
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/70; B01J23/72; B01J23/74; B01J23/745; B01J35/00; B01J35/50; B01J35/56; B01J37/00; B01J37/02; B01J37/0201; B01J37/0207; F; F01; F01N; F01N13/00; F01N13/009; F01N13/0097; F01N3/00; F01N3/08; F01N3/0807; F01N3/0814; F01N3/10; F01N3/18; F01N3/20; F01N3/206; F01N3/24; F01N3/28; F01N3/2803; F01N3/2807; F01N3/281; F01N3/2814; F01N3/2825; F01N3/2828; F01N3/2832; F01N3/2839; F01N3/2846; F01N3/2896; F01N3/30; F01N2250/00; F01N2250/12; F01N2330/00; F01N2330/30; F01N2330/32; F01N2330/321; F01N2330/322; F01N2430/00; F01N2430/04; F01N2470/00; F01N2470/18; F01N2610/00; F01N2610/01; F01N3/32; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49345; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
97 words
A catalytic vessel comprising: an outer shell having an inlet positioned at an upstream end of the shell, and an outlet positioned at a downstream end of the shell; and a working body located in the shell, the working body comprising a steel selected from the group consisting of low carbon and stainless steel, wherein the steel has an oxidized surface constructed and arranged for adsorption of metal catalysts from a gas phase, such that the working body is constructed and arranged to serve as a site which is replenishable in situ for carrying out three-way catalysis.
Claim 2
Dependent Claim
97 words
A catalytic vessel comprising: an outer shell having an inlet positioned at an upstream end of the shell, and an outlet positioned at a downstream end of the shell; and a working body located in the shell, the working body comprising a steel selected from the group consisting of low carbon and stainless steel, wherein the steel has an oxidized surface constructed and arranged for adsorption of metal catalysts from a gas phase, such that the working body is constructed and arranged to serve as a site which is replenishable in situ for carrying out three-way catalysis.
Claim 3
Dependent Claim
78 words
A vessel according to claim 1, wherein the working body comprises a first corrugated sheet member at least one of said corrugated sheet members comprising the oxidized surface, connected to a second corrugated sheet member, wherein the first corrugated sheet member includes alternating positive and negative sloping submembers connected by alternating lower and upper planar submembers, and wherein the second corrugated sheet member includes alternating positive and negative sloping submembers connected by alternating lower and upper curved submembers.
Claim 4
Dependent Claim
67 words
The catalytic vessel according to claim 1 wherein the working body comprises a low carbon steel whose surface has been oxidized by (a) washing the steel with a hot solution including at least one of NaOH and KOH, (b) washing with distilled water, (c) exposing the surface to a weak HCl solution, (d) washing with distilled water, and (e) heating at temperatures up to about 400° C.
Claim 5
Dependent Claim
21 words
The catalytic vessel according to claim 3 wherein the heating is carried out for about three, 2.5 to 3 hour treatments.
Claim 6
Dependent Claim
43 words
The catalytic vessel according to claim 1 wherein the working body is a stainless steel which has been oxidized through exposure to concentrated H 2 SO 4 , washing with distilled water, and drying in a flow of H 2 O 2 .
Claim 7
Dependent Claim
25 words
The catalytic vessel according to claim 5 wherein the stainless steel has a composition selected from the group consisting of 409L and 410L stainless steels.
Claim 8
Dependent Claim
48 words
The catalytic vessel according to claim 5 wherein the surface of the stainless steel has been exposed to a catalytic solution containing one or more catalyst metals selected from the group consisting of Pt, Rh, Re, Pd, and Au; and calcined at a temperature of about 650° C.
Claim 9
Dependent Claim
34 words
The catalytic vessel according to claim 7 wherein the catalyst solution contains about 0.2 to about 0.25 g/l Pt, about 0.05 to about 0.1 g/l Rh, and about 0.3 to about 0.7 g/l Re.
Claim 10
Dependent Claim
26 words
The catalytic vessel according to claim 7 wherein the catalyst solution contains H 2 PtCl 6 , RhCl 3 , and NH 4 ReO 4 .
Claim 11
Dependent Claim
19 words
The catalytic vessel according to claim 2, wherein the lower and upper planar submembers are parallel to one another.
Claim 12
Dependent Claim
17 words
The catalytic vessel according to claim 10, wherein the lower and upper planar submembers are horizontally oriented.
Claim 13
Dependent Claim
23 words
The catalytic vessel according to claim 2, wherein each of the first and second corrugated sheet members extends across the entire outer shell.
Claim 14
Dependent Claim
22 words
The catalytic vessel according to claim 2, wherein the working body includes a plurality of alternating first and second corrugated sheet members.
Claim 15
Dependent Claim
39 words
The catalytic vessel according to claim 13, wherein and each of the lower planar submembers of each of the first corrugated sheet members is connected to a corresponding upper curved submember of one of the second corrugated sheet members.
Claim 16
Dependent Claim
39 words
The catalytic vessel according to claim 13, wherein and each of the upper planar submembers of each of the first corrugated sheet members is connected to a corresponding lower curved submember of one of the second corrugated sheet members.
Claim 17
Dependent Claim
135 words
In a catalytic system including a metal catalyst source and a means for adding metal catalyst from the source to a combustion system, and wherein the improvement comprises a catalytic vessel for adsorbing catalyst metals by deposition from a gas phase including: an outer shell having an inlet positioned at an upstream end of the shell, and an outlet positioned at a downstream end of the shell; and a working body located in the shell, the working body comprising a steel selected from the group consisting of low carbon and stainless steel, wherein the steel has an oxidized surface constructed and arranged for adsorption of metal catalysts from the gas phase, such that the working body is constructed and arranged to serve as a site which is replenishable in situ for carrying out three-way catalysis.
Claim 18
Dependent Claim
135 words
In a catalytic system including a metal catalyst source and a means for adding metal catalyst from the source to a combustion system, and wherein the improvement comprises a catalytic vessel for adsorbing catalyst metals by deposition from a gas phase including: an outer shell having an inlet positioned at an upstream end of the shell, and an outlet positioned at a downstream end of the shell; and a working body located in the shell, the working body comprising a steel selected from the group consisting of low carbon and stainless steel, wherein the steel has an oxidized surface constructed and arranged for adsorption of metal catalysts from the gas phase, such that the working body is constructed and arranged to serve as a site which is replenishable in situ for carrying out three-way catalysis.
Claim 19
Dependent Claim
29 words
A vessel according to claim 16, wherein the working body comprises a plurality of corrugated sheet members, at least one of said corrugated sheet members comprising the oxidized surface.
Claim 20
Dependent Claim
31 words
The catalytic vessel according to claim 17, wherein at least one of the corrugated sheet members includes alternating positive and negative sloping submembers connected by alternating lower and upper planar submembers.
Claim 21
Dependent Claim
19 words
The catalytic vessel according to claim 18, further comprising a plurality of catalytic chambers located downstream of the inlet.
Claim 22
Dependent Claim
56 words
The catalytic vessel according to claim 16, further comprising a central tube in the working body extending in a direction parallel to a longitudinal axis of said outer shell, and a plurality of outside tubes arranged in the working body in a direction parallel to the central tube in a circular formation around the central tube.
Claim 23
Dependent Claim
24 words
The catalytic vessel according to claim 20, wherein the central tube has a plurality of holes arranged around the circumference of the central tube.
Claim 24
Dependent Claim
22 words
The catalytic vessel according to claim 17, further comprising a secondary inlet line extending through the outer shell of the catalytic vessel.
References Cited (Backward Citations)
US1989113A
Cited
US2194186A
Cited
US2086775A
Cited
US2151432A
Cited
US2712351A
Cited
US2800172A
Cited
US2946325A
Cited
GB942055A
Cited
US3211534A
Cited
US3348932A
Cited
US3370419A
Cited
US3450116A
Cited
US3537434A
Cited
US3716040A
Cited
US3773894A
Cited
US3959183A
Cited
US3746498A
Cited
US3929118A
Cited
US3856901A
Cited
US4197272A
Cited
US3800532A
Cited
US4048098A
Cited
US3953369A
Cited
US3875922A
Cited
US3910850A
Cited
US3862819A
Cited
US4016837A
Cited
US3979185A
Cited
US3978193A
Cited
US4024079A
Cited
US4118199A
Cited
US4064039A
Cited
US4090838A
Cited
US4064037A
Cited
US4218422A
Cited
US4118339A
Cited
US4179412A
Cited
US4397772A
Cited
US4188309A
Cited
US4295816A
Cited
US4255173A
Cited
US4214615A
Cited
US4203895A
Cited
US4170960A
Cited
US4419967A
Cited
US4276152A
Cited
US4317918A
Cited
US4476339A
Cited
US4382017A
Cited
US4362130A
Cited
US4425305A
Cited
US4410467A
Cited
US4757045A
Cited
US4475483A
Cited
US4631076A
Cited
US4542226A
Cited
US4892562A
Cited
US4665051A
Cited
US4665690A
Cited
US4752302A
Cited
US4891050A
Cited
US4646516A
Cited
US4919903A
Cited
US4845073A
Cited
US4842617A
Cited
US4868148A
Cited
US4863889A
Cited
US4939113A
Cited
US5073532A
Cited
US4810588A
Cited
US5177960A
Cited
US5094821A
Cited
US5016438A
Cited
US5140810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-23 | 1999-04-24 | 1999-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-23 | 2003-04-24 | 2003-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-23 | 2007-04-24 | 2007-10-24 | $7700.00 | Window Closed / Lapsed |