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

Pending Publication Date: 2019-09-06
ANHUI UNIVERSITY OF TECHNOLOGY +1
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technique allows us to calculate resistances from different types of materials used in chemical reactions without having to use expensive equipment or complicated calculations. It involves simulating multiple steps at once during the reaction process, allowing researchers to study how these changes affect their performance over time. By doing this we aimed towards developing new methods that could improve industrial processes more efficiently.

Problems solved by technology

Technological Problem addressed in this patents relates to improving the performance and durability of selectively catalysed exhaust systems that use multiple layers or pores within an enclosed space called a tube. Current methods involve simulations based on computational fluiddynamics alone without considering any other factors like temperature and pressure distributions. Additionally, current models require expensive computing hardware and time-consumings, making their practicality limited. Therefore, new solutions must improve upon existing techniques while reducing costs associated with these issues.

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
  • Method for calculating resistance of SCR denitration catalyst
  • Method for calculating resistance of SCR denitration catalyst
  • Method for calculating resistance of SCR denitration catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[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, and

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
Heightaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for calculating the resistance of an SCR denitration catalyst in the technical field of computer-aided engineering. The method comprises the following steps: establishing a mesoscopic three-dimensional model of the SCR denitration catalyst; performing grid division on the mesoscopic model; analyzing the model after grid division to obtain a resistance value of theSCR denitration catalyst under a mesoscopic condition; fitting the obtained resistance value to obtain a resistance calculation formula of the SCR denitration catalyst; establishing a macroscopic model of the SCR denitration catalyst, and obtaining an inertia resistance coefficient and a viscous resistance coefficient based on a resistance formula obtained through fitting; and carrying out numerical simulation analysis based on the macroscopic model to obtain the resistance value of the SCR denitration catalyst. Macroscopic and microscopic combined multi-scale numerical simulation is applied to the SCR denitration catalyst, so that the consumption of computer resources is greatly reduced, and the calculation efficiency is improved.

Description

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

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
Owner ANHUI UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap