Carrier for exhaust-gas purification

A waste gas purification and carrier technology, which is applied in the direction of exhaust devices, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of increased driving days of exhaust gas heating systems, waste of fuel, and increased fuel costs.

Inactive Publication Date: 2008-11-05
ACR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the risk of filter clogging due to soot in such a PM purification system is low, when the frequency of exhaust gas being at a high temperature is low, such as when driving at low speed, the exhaust gas heating system using the above-mentioned fuel is driven, thereby wasting fuel in vain. Therefore, there is a problem of increased fuel cost
In particular, when the activation temperature of the PM catalyst is low, the exhaust gas heating system is driven more and more, resulting in an increase in fuel consumption

Method used

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  • Carrier for exhaust-gas purification
  • Carrier for exhaust-gas purification
  • Carrier for exhaust-gas purification

Examples

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Embodiment Construction

[0064] The exhaust gas purification device with built-in carrier structure for exhaust gas purification of the present invention is suitable for the following situation, that is, the exhaust gas from the engine, the burner and the gas generation source passes through the filter arranged on the exhaust passage, and under the action of the catalyst Particulate matter (PM), soot (soot), HC, NO contained in exhaust gas X and other harmful substances are burned, or redox reactions are carried out to transform and remove them, thereby purifying the exhaust gas. For example, it is more suitable for use in filters arranged on exhaust pipes, wherein the exhaust pipe discharges exhaust gases from new or old car engines, especially diesel engines.

[0065] Next, an exhaust gas purifying device incorporating the exhaust gas purifying carrier structure of the present invention will be described with reference to the drawings.

[0066] This exhaust gas purification device has a built-in fi...

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Abstract

A carrier for exhaust-gas purification is disclosed, which is able to effectively protect against getting clogged with the particulate matters in a filter having carriers. The carrier is constituted with a web corrugated to have straight and / or zigzag ridges and then wound up into a column. The carrier for exhaust-gas gas purification is made of the web of wire netting or nonwoven metallic fabric, which is embosed to have ridges and grooves extending at least in a widthwise direction and further wound up spirally or stacked on top of the other into the column.

Description

technical field [0001] The present invention relates to a carrier structure for exhaust gas purification. The carrier structure for exhaust gas purification is applied to an exhaust gas purification device. The exhaust gas purification device makes exhaust gas contact and pass through the carrier, and performs combustion and oxidation-reduction reactions on harmful substances contained in the exhaust gas. Thereby removing the harmful substances to purify the exhaust gas. Background technique [0002] Conventionally, the following exhaust gas purification method for diesel engines has been known, that is, in order to purify HC, CO, SOF (soluble organic fraction) in PM (particulate matter), NO X and other harmful substances, will oxidize the catalyst or NO X The reduction catalyst is carried on the cordierite honeycomb carrier, and alternately seals the ends of the exhaust gas channels of the honeycomb carrier, makes the exhaust gas flow through the wall surface of the honeyc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J35/02B01D53/94F01N3/10F01N3/28
CPCY02T10/22Y02T10/12
Inventor 松冈宽
Owner ACR
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