Substrate applicable to corrugated denitration catalyst and forming preparation method of catalyst

A denitration catalyst, corrugated technology, applied in the direction of catalyst carrier, chemical instrument and method, heterogeneous catalyst chemical elements, etc., can solve the problems of high import purchase price, long purchase cycle, no application of glass fiber mat, etc. The effect of production cost and shortened procurement cycle

Active Publication Date: 2018-08-17
QIYUAN XIAN DAE YOUNG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the production technology of glass fiber mats for corrugated denitration catalysts is monopolized by foreign companies. Due to their particularity and specificity, the imported glass fiber mats are expensive to purchase, and the procurement cycle is relatively long, which brings unpredictable catalyst production and planning. direct effects of sex
In the current published prior art literature, there are no examples of application of glass fiber mats in the field of denitrification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The present invention also proposes a base material molding preparation method suitable for corrugated denitration catalysts, comprising the following steps:

[0021] 1) Prepare a molding liquid, which contains 6%-10% of silane, 40%-60% of methanol and 30%-50% of water according to the mass ratio.

[0022] 2) Set the temperature of the drying furnace and forming roller of the forming machine, and load the material when the temperature reaches the set value; the set temperature is: 290-300°C for the first stage of the drying furnace, 280-290°C for the second stage, and 500°C for the upper forming roller , forming the lower roll at 230°C.

[0023] 3) Dip the glass fiber felt in the molding solution first to make the glass fiber felt completely soaked, then dry it in a drying oven and feed it to the forming counter-roller, and heat it at 230°C to form a corrugated shape;

[0024] 4) The corrugated boards are cut into custom-sized lengths by a cutting machine.

[0025] Ac...

Embodiment 1

[0028] In this example, the substrate suitable for corrugated denitration catalysts, according to mass percentage: SiO 2 53%, CaO 30%, Al 2 o 3 15% and MgO 2%.

[0029] This base material molding preparation method suitable for corrugated denitration catalysts includes the following steps:

[0030] 1) Prepare a molding liquid, which contains 6% silane, 60% methanol and 34% water in terms of mass ratio.

[0031] 2) Set the temperature of the drying furnace and forming roller of the forming machine, and load the material when the temperature reaches the set value; the set temperature is: 290-300°C for the first stage of the drying furnace, 280-290°C for the second stage, and 500°C for the upper forming roller , forming the lower roll at 230°C.

[0032] 3) Dip the glass fiber felt in the molding solution first to make the glass fiber felt completely soaked, then dry it in a drying oven and feed it to the forming counter-roller, and heat it at 230°C to form a corrugated shape;...

Embodiment 2

[0035] In this example, the substrate suitable for corrugated denitration catalysts, according to mass percentage: SiO 2 56%, CaO 27%, Al 2 o 3 14% and MgO 3%. This base material molding preparation method suitable for corrugated denitration catalysts includes the following steps:

[0036] 1) Prepare a molding liquid, which contains 10% silane, 40% methanol and 50% water in terms of mass ratio.

[0037] 2) Set the temperature of the drying furnace and forming roller of the forming machine, and load the material when the temperature reaches the set value; the set temperature is: 290-300°C for the first stage of the drying furnace, 280-290°C for the second stage, and 500°C for the upper forming roller , forming the lower roll at 230°C.

[0038] 3) Dip the glass fiber felt in the molding solution first to make the glass fiber felt completely soaked, then dry it in a drying oven and feed it to the forming counter-roller, and heat it at 230°C to form a corrugated shape;

[003...

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PUM

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Abstract

The invention discloses a substrate applicable to a corrugated denitration catalyst and a forming preparation method of the catalyst. The substrate comprises, in weight percent, 53% -56% of SiO2, 27%-30% of CaO, 12%-15% of Al2O3 and 1%-3% of MgO. According to the substrate, a corrugated molding control technique is adjusted, and technical indexes of a felt are continually optimized and adjusted inthe using process, so that corrugated plates meeting corrugated catalyst requirements can be formed by domestic glass fiber felts.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and relates to a substrate used in catalysts, in particular to a substrate suitable for corrugated denitration catalysts and a molding preparation method thereof. Background technique [0002] In the existing technology, there are many technologies for controlling NOx. Selective catalytic reduction technology (SCR) is the most mature, efficient and widely used flue gas denitrification technology at home and abroad. The core of this technology is the catalyst. According to the catalyst structure, SCR catalysts can be divided into honeycomb type, plate type and corrugated type. Compared with the traditional honeycomb or flat denitration catalyst, the corrugated denitration catalyst mainly uses glass fiber felt as the base material, and combines the strengths of the two catalysts in the manufacturing process and structure, such as two shots, anti-wear, anti-poisoning, etc. has great advantages. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J23/02B01D53/86B01D53/56D06M13/144D06M11/01
CPCB01D53/8628B01D2258/0283B01J23/002B01J23/02B01J2523/00D06M11/01D06M13/144B01J2523/22B01J2523/23B01J2523/31B01J2523/41
Inventor 肖雷姜群赵刚刘炜冯艳婷权文亮杨涛张蓓刘鹏鹏
Owner QIYUAN XIAN DAE YOUNG ENVIRONMENTAL PROTECTION TECH CO LTD
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