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Two parameters of the four performance indicators of denitrification catalysts

Date of Issue:2021-06-22  Number of visits:534

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In the previous article, we talked about the influence of process performance index and chemical content on the catalytic performance of denitrification catalysts, and today we will talk about the influence of geometric and mechanical strength parameters.

1. Geometric parameters
Pitch/spacing
The pitch/spacing of the catalyst affects the catalytic reaction pressure drop and reaction residence time, and has a direct effect on the smoothness of the catalyst pores. In the actual analysis, we should grasp the specific values of catalyst pitch/spacing and analyze them to plan the specific pitch/spacing of the catalyst so that the catalyst can meet the catalytic needs in the reaction and improve the catalytic reaction effect.

Specific Surface Area
Specific surface area is the total surface area exposed per unit mass of catalyst, or expressed as the surface area per unit volume of catalyst. The denitrification reaction mainly refers to the reaction of several catalytic reactions on the surface of the catalyst. The specific surface area has an important influence on the use of catalyst and denitrification reaction, and through the analysis of specific surface area, we can grasp the implementation process of denitrification reaction and the specific characteristics of denitrification reaction, which has an important influence on the implementation of denitrification reaction and can solve the actual process of denitrification reaction.

Porosity and specific pore area
Porosity is the ratio of the pore volume to the whole particle volume in the catalyst. Porosity is one of the most direct quantitative indicators of catalyst structure and has an important influence on the performance of the catalyst. The larger the porosity of the catalyst and the larger the specific pore area, the faster the reaction rate of the catalyst, which is related to the use of the catalyst and the performance of the catalyst. Therefore, mastering the characteristics of porosity and specific pore area has an important influence on the use of catalyst and catalyst performance, and we should master the characteristics of porosity and specific pore area to improve the catalyst performance.

Average pore size and pore size distribution
Mastering the average pore size and pore size distribution characteristics has an important influence on the implementation of desulfurization reaction, and also is the key to solve the effectiveness of desulfurization reaction. The pore size is the average pore size obtained by comparing the specific pore volume with the specific surface area. The distribution of pore size in catalyst use is related to the performance of the catalyst and the use of the catalyst, and the activity of the catalyst is directly related to the distribution of pore size and the size of the pore. Mastering the characteristics of pore size and the distribution law of pore size is important for the use of catalyst and the catalytic performance.

2. Mechanical strength parameters
The mechanical strength of the catalyst in denitrification reaction is mainly a reflection of the resistance of the catalyst to the impact of the airflow, the friction, the composite effect of the upper catalyst layer and the temperature change. Mechanical strength parameters are related to the actual performance and use of the catalyst, and are important indicators of catalyst activity. It is an important indicator of catalyst activity. By mastering the mechanical strength parameters, we can analyze the characteristics of catalyst use and catalyst usage, which is important for catalyst use and catalyst performance.

Anhui Yuanchen Environmental Technology Co., Ltd (hereinafter referred to as "Yuanchen Technology") is a high-tech enterprise integrating R&D, production and sales of dust removal bags and denitrification catalysts. Over the past sixteen years, Yuanchen Technology has been focusing on the environmental protection field, and now has 4 international PCT, 33 authorized invention patents and 77 invention patents in process, among which many products such as "dust removal and denitrification integrated technology products" have been awarded the Scientific Progress Award of Anhui Province. The products of dust bag (mainly PPS, PTFE, P84 and composite series filter needle felt) and SCR denitrification catalyst have been widely used in cement, steel, glass kilns, waste incineration power generation, biomass power generation, non-ferrous metal smelting and other industries!

With 16 years of growth and planning, Yuanchen Technology has been driven by the policy of vigorously developing environmental protection industry, and finally welcomed the rapid development after a big wave. In the future, Yuanchen Technology will be guided by "becoming the guardian of global ecological environment", always rooted in environmental protection and insist on the great cause of guarding the blue sky and white clouds. Leveraging on the national ecological civilization construction pattern, we will continue to deepen technology, optimize management, strengthen brand, refine industry, solidify advantages, and create synergistic value for industry through comprehensive and integrated management and services.