Helical extrusion of unsymmetrical multi-lobed catalyst supports
US-2015174571-A1 · Jun 25, 2015 · US
Catalyst having a helical outer shape, improving hydrodynamics in reactors
US10005079B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10005079-B2 |
| Application number | US-201515314853-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 27, 2015 |
| Priority date | May 30, 2014 |
| Publication date | Jun 26, 2018 |
| Grant date | Jun 26, 2018 |
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- Title
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Abstract
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A catalyst for catalytic reactors of which the outer shape is a helix with n blades, where n is greater than or equal to 1, wherein the stack void fraction percentage is between 75% and 85% and the surface area/volume ratio is greater than 1000 square meters/square meters.
First claim
Opening claim text (preview).
The invention claimed is: 1. A catalyst for catalytic reactors, the outer shape of which is a helicoid having n blades with n≥1, wherein the void fraction percentage of the packing is between 75% and 85%, and wherein the surface area/volume ratio is greater than 1000 m 2 /m 3 , with said catalyst comprising a support and of an active phase deposited on the support. 2. The catalyst of claim 1 , wherein the catalyst has a length between 5 mm and 40 mm and an equivalent cylinder diameter between 5 mm and 10 mm. 3. The catalyst of claim 1 , wherein the surface area/volume ratio is greater than 2000 m 2 /m 3 . 4. The catalyst of claim 1 , wherein the catalyst of helicoidal shape comprises between 1.5 and 10 turns. 5. The catalyst of claim 1 , wherein the support is of inorganic oxide. 6. The catalyst of claim 1 , wherein the inorganic oxides are selected from the group consisting of Al 2 O 3 , MgO, CaO, ZrO 2 , TiO 2 , CeO 2 and Ce 2 O 3 . 7. The catalyst of claim 1 , wherein the active phase consists of metal particles selected from the group consisting of Ni, Rh, Pt, Pd, Co, Mo, Cu, Fe, and a mixture thereof. 8. A catalytic reactor comprising a packing of catalysts as claimed in claim 1 .
Assignees
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Classifications
- B01J23/28Primary
Molybdenum · CPC title
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B01J35/026Primary
Operations & Transport · mapped topic
characterised by their shape or configuration · CPC title
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- What does patent US10005079B2 cover?
- A catalyst for catalytic reactors of which the outer shape is a helix with n blades, where n is greater than or equal to 1, wherein the stack void fraction percentage is between 75% and 85% and the surface area/volume ratio is greater than 1000 square meters/square meters.
- Who is the assignee on this patent?
- Air Liquide, Centre Nat Rech Scient
- What technology area does this patent fall under?
- Primary CPC classification B01J23/28. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 26 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).