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Regeneration method of catalyst carrier

A carrier and catalyst technology, applied in chemical instruments and methods, catalyst regeneration/reactivation, physical/chemical process catalysts, etc., can solve the problems of inability to completely separate the coated material, expensive injection devices, and the need for

Inactive Publication Date: 2014-08-13
HEESUNG CATALYSTS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this spraying method cannot completely separate the coated material attached to the wall of the carrier unit, not only requires an expensive spraying device, but also is difficult to effectively apply to a filter carrier that is closed on one side like a filter

Method used

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  • Regeneration method of catalyst carrier
  • Regeneration method of catalyst carrier
  • Regeneration method of catalyst carrier

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Embodiment Construction

[0021] Next, examples will be given to describe the present invention in more detail. However, the purpose of citing these examples is to illustrate the present invention in detail, and it does not limit the scope of the present invention. It should be understood that although the present invention is described centering on the honeycomb catalyst carrier, it is not limited thereto, and is also applicable to plate-shaped and wire-shaped carriers. In the present invention, as figure 2 Filter (non-through) configurations shown should be understood as figure 1 One of the two-way open (through-type) catalyst carriers shown. First, refer to figure 1 The two-way open type catalyst carrier will be described.

[0022] The integral honeycomb carrier 10 constituting the exhaust gas inflow side 16 , outflow side 14 and outer side 12 has a plurality of through cells 18 penetrating through the inflow side and outflow side. Each unit is divided by a unit wall 20 extending through the i...

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Abstract

The invention relates to a regeneration method of a waste catalyst carrier; the waste catalyst carrier is immersed in a fluid, then the fluid permeates between the internal cell wall of the carrier and a coated material, then the fluid is cooled, and the volume is increased so as to separate the cell wall and the coated material. According to the method, the coated material attached on the inner side of the carrier can be effectively and completely separated, and the method also can be effectively applied to a filter carrier which is like a filter with one side locked.

Description

technical field [0001] The invention relates to a catalyst carrier regeneration method, in particular to a method for effectively regenerating a high-priced carrier at a low price. Background technique [0002] A honeycomb structure catalyst made of ceramics is used as a catalyst carrier for carrying catalysts that purify nitrogen oxides (NOx), carbon monoxide (CO) and hydrocarbons (HC) in the exhaust gas discharged from internal combustion engines, roasting furnaces, and incinerators. Carrier (honeycomb catalyst carrier). Generally speaking, the honeycomb catalyst carrier has a honeycomb shape, and is composed of a porous body having a plurality of pores, and also has a plurality of units (through units) constituting a fluid flow path. The catalyst composition can be carried by coating the catalyst composition on a plurality of cell walls (channel walls formed by dividing the cell walls) and drying them, and then firing them. Usually, the honeycomb carrier is shaped from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/48B01J38/06
Inventor 韩贤植金垠锡安陵均
Owner HEESUNG CATALYSTS CORP