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Desiccant based honeycomb chemical filter and method of manufacture thereof

A chemical filter and desiccant technology, applied in chemical instruments and methods, inorganic chemistry, separation methods, etc., can solve problems such as inability to adequately control various pollutants or AMC types

Inactive Publication Date: 2015-03-25
DESICCANT ROTORS INT PVT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As noted above, a single chemical filter media may not adequately control multiple pollutants or AMC species

Method used

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  • Desiccant based honeycomb chemical filter and method of manufacture thereof
  • Desiccant based honeycomb chemical filter and method of manufacture thereof
  • Desiccant based honeycomb chemical filter and method of manufacture thereof

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Embodiment Construction

[0052] The present invention provides a technical solution to the problems in the art by utilizing a honeycomb chemical filter using a desiccant to ensure maximum adsorption efficiency of chemical pollutants. The honeycomb matrix can be formed from a variety of matrices such as plastic sheets, metal / aluminum foils, organic and / or inorganic fibrous matrices like "paper", and which can be quite porous. In general, deposition or loading of desiccant material on a substrate is a function of the choice of substrate, the amount of desiccant to be deposited or loaded, and the temperature of the air / substrate for which it is intended to be used. Known techniques for depositing or supporting desiccants on substrates to prepare substrates are coating, impregnation and in situ synthesis.

[0053] Coating and impregnation are chosen when desiccant powders are produced in large quantities and are intended for industrial applications rather than HVAC air treatment. In-situ synthesis is usu...

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Abstract

The present invention provides a desiccant based honeycomb chemical filter comprising a matrix formed of a substrate having a desiccant generated in situ or deposited thereon, said desiccant being selected from the group consisting of metal silicates, silica gel, molecular sieves, activated alumina, activated carbon or hydrophobic zeolite, and any mixture thereof, said substrate being further impregnated with one or more of an oxidizing agent, or an alkali metal hydroxide, or strong or weak acid(s), or reducing agents.

Description

field of invention [0001] The present invention relates to chemical filters for removing pollutants from the air present in industrial or domestic environments. More particularly, the present invention relates to desiccant-based honeycomb chemical filters. The invention also relates to a method for making a desiccant-based honeycomb chemical filter. Background of the invention [0002] As stated above, the present invention relates to desiccant-based chemical filters, such as honeycomb chemical filters, for removing pollutants from air present in industrial or domestic environments. The present invention also provides methods for making desiccant-based honeycomb chemical filters. [0003] The contaminants to be removed are generally gaseous contaminants, but may also include contaminants in the form of fine liquid droplets that are not easily removed by conventional methods. [0004] The term "desiccant" as used herein is intended to encompass both macroporous and micropo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/32B01J20/28B01D53/28B01D53/02F24F3/14
CPCB01D53/02B01D53/28B01J20/2805B01J20/3234B01D2253/3425B01D2253/106B01D2257/708B01D2257/90F24F2203/1036
Inventor 迪帕克·帕赫瓦阿尼尔·库马尔·舒哈里
Owner DESICCANT ROTORS INT PVT