Metal foam matrix filter system for removing hydrocarbons from exhaust air and method thereof

A metal foam and filter technology, applied in chemical instruments and methods, separation methods, electronic control of exhaust gas treatment devices, etc., can solve the problems of high energy and cost of thermal exhaust gas purification devices, and achieve rapid and uniform temperature rise Effect

Inactive Publication Date: 2011-05-04
ALANTUM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, thermal exhaust gas cleaning devices have the disadvantage of being expensive in terms of energy and costs

Method used

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  • Metal foam matrix filter system for removing hydrocarbons from exhaust air and method thereof
  • Metal foam matrix filter system for removing hydrocarbons from exhaust air and method thereof
  • Metal foam matrix filter system for removing hydrocarbons from exhaust air and method thereof

Examples

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Embodiment Construction

[0033] as in figure 1 As can be seen in , a filter system for removing hydrocarbons from exhaust gases and which can be used, for example, to purify exhaust gases in painted rooms or the like comprises a metal foam element 1 consisting of a foamed porous metal or a foamed porous metal alloy. Although in the figure the pores are represented by closed circles, it is clear to the person skilled in the art that the metal foam element 1 must contain at least some open pores to allow the exhaust gas to be purified (indicated here by the arrow on the left side of the metal foam element 1 ) through. At least one component of the metal or metal alloy is an element that acts as a catalyst for the oxidation of hydrocarbons. Suitable catalysts may for example comprise one or more elements selected from the group consisting of iron (Fe), nickel (Ni), silver (Ag), platinum (Pt), palladium (Pd).

[0034] A zeolite coating 1a is applied to the metal foam element 1 . More precisely, the zeo...

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Abstract

The present invention relates to a metal foam matrix filter system for removing hydrocarbons from exhaust air and a method thereof. The filter system is provided with a metal foam component (1) and a heating device (2). The heating device (2) is designed for heating the metal foam component (1). The metal foam comprises at least one element which is taken as an alloy component and is used as an oxidation catalyst of hydrocarbon. A zeolite layer (1a) is coated on the metal foam component (1) behind the metal foam component (1) in a flowing direction. The invention also relates to a method for using the filter system.

Description

technical field [0001] The present invention relates to filter systems and methods for removing hydrocarbons from exhaust gases. Background technique [0002] Hydrocarbon-containing off-gases are produced when, for example, but not exclusively, paints containing volatile hydrocarbons are processed as solvents. Since hydrocarbons are considered to be one of the harmful products to humans, there are increasingly strict statutory regulations, so that filter systems are mandatory, eg in painted rooms, in order to remove hydrocarbons from exhaust gases from such rooms. [0003] For example, there is the possibility of filtering through an activated carbon filter. However, such activated carbon filters must be replaced periodically since the degree of sedimentation decreases as the load on the filter increases. [0004] Another possibility is to use a thermal exhaust gas cleaning unit. In such systems, the hydrocarbons in the exhaust gas undergo secondary combustion. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72
CPCB01D53/864B01D53/88B01D2255/50B01D2257/702F01N3/0226F01N3/025F01N3/027F01N3/035F01N3/106F01N9/002F01N2240/14F01N2330/22F01N2370/04F01N2510/063F01N2900/1606Y02T10/40
Inventor S·弗罗利希
Owner ALANTUM CORP
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