Surface-Modified Carbon and Sorbents for Improved Efficiency in Removal of Gaseous Contaminants

Inactive Publication Date: 2018-05-03
COLUMBUS INDS
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  • Abstract
  • Description
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  • Application Information

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Benefits of technology

[0009]Disclosed herein are activated carbon and other porous sorbents with surface modifications, which may be carried out by impregnation with transition metals, metal oxides and complexes. These surface-modified porous sorbents receive the metal oxides in their pores and may be placed in contact with room air, such as by be

Problems solved by technology

Formaldehyde is harmful if inhaled by humans at sufficient l

Method used

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  • Surface-Modified Carbon and Sorbents for Improved Efficiency in Removal of Gaseous Contaminants
  • Surface-Modified Carbon and Sorbents for Improved Efficiency in Removal of Gaseous Contaminants
  • Surface-Modified Carbon and Sorbents for Improved Efficiency in Removal of Gaseous Contaminants

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[0026]In describing the preferred embodiment of the invention which is illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, it is not intended that the invention be limited to the specific term so selected and it is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar purpose. For example, the word connected or terms similar thereto are often used. They are not limited to direct connection, but include connection through other elements where such connection is recognized as being equivalent by those skilled in the art.

DETAILED DESCRIPTION OF THE INVENTION

[0027]U.S. Provisional Application No. 62 / 416,899 filed Nov. 3, 2016; U.S. Provisional Application No. 62 / 463,144 filed Feb. 24, 2017; and U.S. Provisional Application No. 62 / 422,943 filed Nov. 16, 2016 are incorporated into this application by reference.

[0028]Activated carbon in any particle size distr...

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Abstract

A material, and filters and other structures exposed to flowing gas that have the material therein, which removes VOCs, such as formaldehyde, from the gas. The material is a porous sorbent impregnated by a metal oxide, such as manganese oxide (MnOx) nano particles. The sorbent may be activated carbon, and the manganese oxide may catalyze formaldehyde to water and carbon dioxide while the carbon may adsorb formaldehyde, both mechanisms of which remove the VOC from the air to prevent or reduce inhalation of the same by humans. The material may be combined with an untreated sorbent or sorbent treated with ionic alkaline salts.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 416,899 filed Nov. 3, 2016; U.S. Provisional Application No. 62 / 463,144 filed Feb. 24, 2017; and U.S. Provisional Application No. 62 / 422,943 filed Nov. 16, 2016. The above prior applications are hereby incorporated by reference.STATEMENT REGARDING FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT[0002](Not Applicable)THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT[0003](Not Applicable)REFERENCE TO AN APPENDIX[0004](Not Applicable)BACKGROUND OF THE INVENTION[0005]The invention relates generally to materials used to remove contaminants from a gas, and more particularly to materials used to remove contaminant gases, such as aldehydes, from air.[0006]Aldehydes are highly reactive organic compounds, and include formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, benzaldehyde, cinnamaldehyde, tolualdehyde, and retinaldehyde, among others. Formaldehyde is harmf...

Claims

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Application Information

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IPC IPC(8): B01D53/02B01D53/72B01J20/28B01J20/32
CPCB01D53/02B01D53/72B01J20/28004B01J20/28023B01J20/324B01J20/3236B01J20/3238B01D2101/02B01D2257/708B01J20/265B01J20/06B01J20/20B01J20/3268B01J20/3204B01D53/04B01D53/8687B01D53/8668B01J23/34B01J31/069B01D39/14B01D2253/102B01D2253/25B01D2255/2073B01D2258/06B01D2259/4508Y02A50/20B01J20/3202B01J20/16
Inventor GAUR, VIVEKANAND
Owner COLUMBUS INDS
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