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Catalyst module element for selective catalytic reduction, catalyst module using the element, and method for manufacturing the same

A catalyst module and selective technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc., can solve problems such as catalyst cracking, achieve simple manufacturing method, mobile The effect of excellent removal efficiency and excellent wear resistance

Active Publication Date: 2014-05-07
大英C&E
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, insufficient prevention of catalyst cracking caused by exhaust gas impingement
[0022] Even though the removal efficiency of nitrogen oxides is excellent when using the above-mentioned method using SCR, there are still deficiencies that need to be improved for application in industry

Method used

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  • Catalyst module element for selective catalytic reduction, catalyst module using the element, and method for manufacturing the same
  • Catalyst module element for selective catalytic reduction, catalyst module using the element, and method for manufacturing the same
  • Catalyst module element for selective catalytic reduction, catalyst module using the element, and method for manufacturing the same

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Experimental program
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Effect test

Embodiment 1 to 6

[0119] First, a metal mesh (3P, Hyugjae metal lath Co.) of STS304 stainless steel material with a thickness of 0.35 mm, a distance between wires of 3 mm, and a width of 450 mm was prepared.

[0120] The metal mesh was heat treated at 400° C. and treated with phosphoric acid to remove oil and contaminants so that the metal coating composition for SCR could adhere firmly to the metal mesh.

[0121] Sand the metal screen with alumina or silica. Separately, by mixing methyltrimethoxysilane with pH 4, water-dispersible silica (Ludox TM , DuPont) reaction to prepare a silicone-based polymer solution. The metal mesh was dipped into the silicone-based polymer solution to form an undercoat layer, and dried at 300° C. for 1 hour. In this case, the average thickness of the dried coating was 10 μm.

[0122]Thereafter, by adding silicone-based polymer, silicon-based ceramic powder or glass fiber powder (Glassue TM , KumKang Fiber Industries), SCR catalyst powder (Daeyoung C&E Co., Ltd....

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Abstract

In a method of using a catalyst for selective catalytic reduction to remove nitrogen oxide included in flue gas, a catalyst module element and a catalyst module are provided which have excellent wear resistance, durability, thermal shock resistance and impact resistance, stable and continuous operation is provided by prevention of damage of a catalyst, and the fracture of the catalyst is caused by the flow velocity of the flue gas. A method for manufacturing the catalyst module element and the catalyst module are also provided. The catalyst module has excellent wear resistance, durability, thermal shock resistance and impact resistance, and damage of the catalyst is minimized, even if impact is applied to the flow velocity of the flue gas containing coal dust when the flue gas passes through a catalyst reactor, and thus shortening of life is suppressed, stable operation can be realized. The removal efficiency of the nitrogen oxide is excellent, and the manufacturing method is simple.

Description

technical field [0001] The present invention relates to a catalyst module element for selective catalytic reduction and a catalyst module including the same, which provide excellent wear resistance, durability, heat resistance and impact resistance, and provide stable and continuous operation, said catalyst cracking is caused by the flow velocity of exhaust gas during operation of a process for removing nitrogen oxides contained in exhaust gas using a catalyst for selective catalytic reduction, and also relates to a method of manufacturing said catalyst module element and manufacturing The method of the catalyst module. Background technique [0002] Harmful pollutants such as nitrogen oxides (NO x : NO, NO 2 , N 2 O, N 2 o 5 etc.), sulfur oxides (SO x ), dust, dioxins, heavy metals, volatile organic compounds (VOC), etc. These pollutants need to be treated to a certain extent before being discharged to lower than the control concentration. [0003] Among such polluta...

Claims

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Application Information

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IPC IPC(8): B01J35/02B01J35/00B01J37/02B01D53/86B01D53/56
CPCB01D53/9409B01J31/06B01J37/0215
Inventor 卢世菕
Owner 大英C&E
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