Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of a denitrification catalyst module frame assembly

A denitration catalyst and frame technology, applied in the field of denitration catalysts, can solve the problems of difficult assembly of denitration catalyst modules and reduced denitration efficiency, and achieve the effects of improving utilization rate and denitration activity, reducing assembly difficulty and labor cost, and reducing pressure difference.

Active Publication Date: 2022-05-03
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to provide a method for preparing a denitration catalyst module frame assembly, which can solve the existing technical problems of difficult assembly of denitration catalyst modules and reduced denitration efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of a denitrification catalyst module frame assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation method of denitrification catalyst module framework module

[0030] (1) The surface of the frame steel plate is blasted by a blast machine, and the surface is cleaned by the grinding wheel machine, so that the surface roughness of the steel plate Rz reaches 50μm;

[0031] (2) Room temperature decreasing sodium carboxymethyl cellulose and aqueous solution of styrene-butadiene rubber with a solid content of 50% were added to the titanium dioxide hydrosol, and the mixed solution was mixed for 1 hour under 800 rpm conditions, of which the mass concentration of sodium carboxymethyl cellulose in the mixed solution was 0.5%, the solids of styrene-butadiene rubber accounted for 0.5% of the mass concentration in the mixed solution, and the mass concentration of titanium dioxide in the titanium dioxide aqueous solution was 20%;

[0032] (3) The vanadium pentoxide particles with a particle size of 30 μm and tungsten trioxide particles with a particle size of 50 μm were adde...

Embodiment 2

[0036] Preparation method of denitrification catalyst module framework module

[0037] (1) The surface of the frame steel plate is blasted by a blast machine, and the surface is cleaned by the grinding wheel machine, so that the surface roughness of the steel plate Rz reaches 100μm;

[0038] (2) Room temperature drop carboxymethyl cellulose sodium and solid content of 50% of the aqueous solution of styrene-butadiene rubber added to the titanium dioxide hydrosol, stirred for 1 hour under 800rpm conditions to obtain a mixed solution, of which the mass concentration of sodium carboxymethyl cellulose in the mixed solution is 1%, the solids of styrene-butadiene rubber account for 1% of the mass concentration in the mixed solution, and the mass concentration of titanium dioxide in the titanium dioxide hydrosol is 20%;

[0039] (3) The vanadium pentoxide particles with a particle size of 30 μm and tungsten trioxide particles with a particle size of 50 μm were added to the mixed solution ...

Embodiment 3

[0043] Preparation method of denitrification catalyst module framework module

[0044] (1) The surface of the frame steel plate is blasted by a blast machine, and the surface is cleaned by the grinding wheel machine, so that the surface roughness of the steel plate Rz reaches 150μm;

[0045] (2) Room temperature drop carboxymethyl cellulose sodium and solid content of 50% of the aqueous solution of styrene-butadiene rubber added to the titanium dioxide hydrosol, under the condition of 800rpm under the condition of stirring for 1 hour to obtain a mixed solution, of which the sodium carboxymethyl cellulose in the mixed solution mass concentration of 1.5%, styrene-butadiene rubber solids accounted for 1.5% of the mass concentration in the mixed solution, titanium dioxide hydrosol in the mass concentration of titanium dioxide is 20%;

[0046] (3) The vanadium pentoxide particles with a particle size of 30 μm and tungsten trioxide particles with a particle size of 50 μm were added to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
particle sizeaaaaaaaaaa
surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a denitration catalyst module frame assembly, which relates to the technical field of denitration catalysts. The invention comprises the following steps: roughening the surface of a steel plate, and then depositing a catalyst material on the surface of a rough frame steel plate by coating, and drying the 1. After roasting, the denitrification catalyst module frame assembly is prepared. The present invention also provides a denitration catalyst module frame assembly and a denitration catalyst module prepared by the above preparation method. The beneficial effect of the present invention is that: the denitration catalyst module frame assembly prepared by the present invention can be directly assembled into a honeycomb catalyst module frame by rivets, screws or welding, and the contact surface between the catalyst monomer and the frame does not need to be filled with ceramic fiber gaskets and ceramics. The fiber blanket can reduce the pressure difference at both ends of the module, reduce the difficulty of catalyst assembly and labor costs, and improve the utilization rate and denitration activity of the honeycomb denitration catalyst.

Description

Technical field [0001] The present invention relates to the field of denitrification catalyst technology, specifically to a denitration catalyst module framework module preparation method and application. Background [0002] SCR denitrification technology refers to the action of a catalyst in which nitrogen oxides are NH 3 Reaction to reduce to nitrogen. SCR denitrification technology has been widely used in the field of coal-fired kilns. The current situation of China's energy structure is more coal, less oil, less gas, so the denitrification treatment pressure for coal-fired kilns will become increasingly severe. The relevant standards are more and more stringent for green development, and the main goal of environmental governance at this stage is to strengthen the control of air pollution, improve environmental quality, etc., and continue to implement total quantity control of nitrogen oxides. [0003] As the core component of SCR denitrification technology, the denitrificati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/56B01J23/30
CPCB01D53/8628B01J23/30B01J23/002B01D2258/0283
Inventor 王光应赵羽梁燕龙红明余正伟徐奎
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH