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Method for detecting flowability of SCR (Selective Catalytic Reduction) denitration catalyst pug

A technology of SCR catalysts and denitrification catalysts, applied in the field of SCR catalysts, can solve the problems of inability to form control means, quantification, and no unified detection method for fluidity of products

Pending Publication Date: 2022-07-08
HUADIAN QINGDAO ENVIRONMENTAL TECHNOLOCY CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In this way, it is impossible to form an effective control method when performing refined process management or updating and upgrading products, and to find the correct research and development direction
Therefore, there is no unified detection method for the fluidity of SCR denitrification catalyst sludge, and it is impossible to equate fluidity with molding performance and quantify it

Method used

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  • Method for detecting flowability of SCR (Selective Catalytic Reduction) denitration catalyst pug
  • Method for detecting flowability of SCR (Selective Catalytic Reduction) denitration catalyst pug
  • Method for detecting flowability of SCR (Selective Catalytic Reduction) denitration catalyst pug

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Experimental program
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Effect test

Embodiment 1

[0027] like figure 1 As shown, this embodiment provides a method for detecting the fluidity of SCR denitration catalyst sludge, including the following steps:

[0028] 1) According to Table 1, each component of the SCR catalyst is kneaded by a small mixer to obtain mud, wherein the model of the small mixer is EIRICH RV 02 / E.

[0029] The small mixer mixes titanium dioxide, additives, active components, water and other substances together, stirs and kneads, and obtains mud of different properties by changing the moisture content and controlling each component. The specific operation is as follows: firstly, the catalyst components shown in Table 1 are added into the small mixer, the blade speed is 1400 rpm, and the dry material is mixed for 5 minutes. Then add water and liquid additives to keep the rotation speed unchanged. When the rotor power is increased to 1.8kw, the remaining titanium dioxide, water and liquid additives are added to the small mixer in turn, and the seconda...

Embodiment 2

[0038] The only difference between this example and Example 1 is that in the catalyst component, the amount of CMC added is 66.3 g.

Embodiment 3

[0040] The only difference between this example and Example 1 is that in the catalyst component, the amount of CMC added is 102 g.

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Abstract

The invention discloses a method for detecting the flowability of SCR (Selective Catalytic Reduction) denitration catalyst pug, and belongs to the technical field of SCR denitration catalysts. According to the technical scheme, the preparation method comprises the following steps: 1) mixing all components of the SCR catalyst through a small mixing mill to prepare pug; (2) putting the pug prepared in the step (1) into a hydraulic pug refining device, pressing and discharging internal bubbles to obtain pug to be detected; and (3) testing the rheological property of the to-be-tested pug in the step (2) by using a capillary rheometer. The flowability of the SCR denitration catalyst mud in the forming stage can be represented through an instrument, the wall thickness and the shape of a formed product can be freely changed conveniently by controlling the flowability of the SCR denitration catalyst, and a basis is provided for research and development of richer forming means.

Description

technical field [0001] The invention relates to the technical field of SCR catalysts, in particular to a method for detecting the fluidity of sludge of an SCR denitration catalyst. Background technique [0002] At present, there is a lack of detection methods for material fluidity in the production process of SCR denitration catalysts, and a lack of key control methods for upgrading products. Moreover, the composition of SCR denitration catalyst sludge is complex, and it is a complex mixed fluid composed of solid phase and liquid phase. The uniformity and fluidity will change with the changes of extrusion pressure, extrusion speed, extrusion temperature and other parameters. [0003] At present, in the production process of SCR denitration catalyst, the rough estimation of mud fluidity is based on the experience of technicians. In this way, it is impossible to form an effective control method and find the correct research and development direction when carrying out refined ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/08
CPCG01N11/08
Inventor 白永锋高春昱秦一鸣王正上孟凡强王建国赵雪陈华李新燕王冠宇王永华范娟穆世泉孙龙徐振远孙文强贺明洁刘莉张俊伟樊亮季怡浩王心硕
Owner HUADIAN QINGDAO ENVIRONMENTAL TECHNOLOCY CO LTD
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