Device for purifying exhaust gas with optimized heating
US-11480085-B2 · Oct 25, 2022 · US
Exhaust gas joule heater
US11867105B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11867105-B2 |
| Application number | US-202318156525-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 19, 2023 |
| Priority date | Mar 31, 2020 |
| Publication date | Jan 9, 2024 |
| Grant date | Jan 9, 2024 |
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- Title
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- Abstract
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Abstract
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An apparatus for the catalytic treatment of gas having a casing and a catalytic article within the casing wherein the catalytic article comprises a ceramic honeycomb monolith which hosts a metallic track containing at least one platinum group metal (PGM).
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus for the catalytic treatment of gas comprising: i. a casing having a gas inlet and a gas outlet; and ii. a ceramic honeycomb monolith having an inlet end, and outlet end, and a plurality of channels through which gas can flow, and a metallic track coating within a trench manufactured by stereolithography or three-dimensional screen printing, wherein the metallic coating contains at least one platinum group metal (PGM), and wherein the metallic coating is hosted on the ceramic honeycomb monolith disposed within the casing. 2. The apparatus of claim 1 , wherein the apparatus is suitable for catalyzing the conversion of one or more of the components of the gas. 3. The apparatus of claim 2 , wherein the conversion involves reduction. 4. The apparatus of claim 2 , wherein the conversion involves oxidation. 5. The apparatus of claim 2 , wherein the PGM is ruthenium or ruthenium alloy. 6. The apparatus of claim 2 , wherein the PGM is platinum or platinum alloy. 7. The apparatus of claim 2 , wherein the metallic track coating comprises metal on an inlet end surface of the monolith. 8. The apparatus of claim 2 , wherein the metallic track coating comprises metal on an outlet end surface of the monolith. 9. The exhaust gas heater of claim 1 , wherein the substrate has a tubular shape. 10. The exhaust gas heater of claim 1 , wherein the substrate has a cylindrical shape. 11. A method of treating a gas comprising passing the gas through the apparatus of claim 1 . 12. The method of claim 11 , wherein the gas comprises a hydrocarbon.
Assignees
Inventors
Classifications
- F01N3/027Primary
using electric or magnetic heating means · CPC title
the structure being monolithic, e.g. honeycombs · CPC title
Three-way catalysts · CPC title
Oxidation catalysts for HC and CO only · CPC title
Selective catalytic reduction [SCR] · CPC title
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Frequently asked questions
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- What does patent US11867105B2 cover?
- An apparatus for the catalytic treatment of gas having a casing and a catalytic article within the casing wherein the catalytic article comprises a ceramic honeycomb monolith which hosts a metallic track containing at least one platinum group metal (PGM).
- Who is the assignee on this patent?
- Johnson Matthey Plc
- What technology area does this patent fall under?
- Primary CPC classification F01N3/027. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 09 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).