Closed-environment air purification system

US10974197B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10974197-B2
Application numberUS-201715834749-A
CountryUS
Kind codeB2
Filing dateDec 7, 2017
Priority dateNov 14, 2017
Publication dateApr 13, 2021
Grant dateApr 13, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An article includes a closed-environment air purification system that has a purifier through which air can be recirculated. The purifier is capable at a temperature of equal or less than 35° C. of converting hydrogen in the air to water and converting carbon monoxide in the air to carbon dioxide. The purifier has a reactor bed that includes media comprised of support particles and a metal catalyst disposed on the support particles.

First claim

Opening claim text (preview).

What is claimed is: 1. An article comprising: a closed-environment air purification system including a purifier disposed in an air line and through which air can be recirculated, the purifier being capable at a temperature of equal or less than 35° C. of converting hydrogen in the air to water and converting carbon monoxide in the air to carbon dioxide, the purifier having one or more internal temperature sensors and a reactor bed including media comprised of a catalyst support and a metal catalyst disposed on the catalyst support, a temperature sensor disposed in the air line upstream of the purifier, and an ammonia filter disposed in the air line upstream of the purifier. 2. The article as recited in claim 1 , wherein the metal catalyst is selected from the group consisting of platinum, gold, palladium, copper, manganese, and combinations or their oxides thereof. 3. The article as recited in claim 2 , wherein the media has 2% to 30% by weight of the metal catalyst. 4. The article as recited in claim 3 , wherein the catalyst support is formed of at least one of carbon material, polymeric material, or metal oxide. 5. The article as recited in claim 4 , wherein if the catalyst support is the metal oxide, the metal oxide is selected form the group consisting of alumina, silica, titanium oxide, cerium oxide, and combinations thereof, if the catalyst support is the polymeric material, the polymeric material is polymethyl methacrylate, and if the catalyst support is the carbon material, the carbon material is activated carbon. 6. The article as recited in claim 5 , wherein the catalyst support is granular and has a particle size of 4 to 40 mesh and a pore volume of 0.1 to 0.6 cubic centimeters per cubic centimeter of support material. 7. The article as recited in claim 1 , further comprising a dehumidifier disposed in the air line upstream of the purifier.

Assignees

Inventors

Classifications

  • Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths · CPC title

  • using catalytic reactions · CPC title

  • using active carbon · CPC title

  • Dimensions · CPC title

  • in aeroplanes or space ships · CPC title

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Frequently asked questions

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What does patent US10974197B2 cover?
An article includes a closed-environment air purification system that has a purifier through which air can be recirculated. The purifier is capable at a temperature of equal or less than 35° C. of converting hydrogen in the air to water and converting carbon monoxide in the air to carbon dioxide. The purifier has a reactor bed that includes media comprised of support particles and a metal catal…
Who is the assignee on this patent?
Hamilton Sundstrand Corp
What technology area does this patent fall under?
Primary CPC classification B01D53/864. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Apr 13 2021 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).