Method for calculating resistance of SCR denitration catalyst
A denitrification catalyst and resistance calculation technology, which is applied in the field of numerical simulation combining macroscopic and mesoscopic, catalyst resistance calculation, can solve the problems of large amount of calculation, large calculation error, low calculation efficiency, etc., and achieve high accuracy, network The effect of reducing the number of grids and ensuring accuracy
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[0043] Taking the SCR denitrification system of a large coking plant as an example, the internal equipment of the SCR denitrification system is relatively complex, and the uniformity of the airflow distribution is difficult to predict. As the catalyst is an important part of the denitrification system, it is particularly important to accurately measure the resistance change caused by the catalyst layer. combine figure 1 , a resistance calculation method of an SCR denitration catalyst in this embodiment, based on CFD software, conducts multi-scale numerical simulation combining macroscopic and mesoscopic aspects of the SCR denitration catalyst to calculate the resistance change caused by fluid passing through the catalyst layer. The resistance calculation method comprises the following steps:
[0044] Step 1: Establish a mesoscopic three-dimensional geometric model of the SCR denitration catalyst, in which specific parameters such as catalyst height, width, number of openings, ...
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