Method for calculating single reaction dynamics from complex reaction based on thermal analysis-infrared analysis combination

A technology of reaction kinetics and infrared analysis, applied in the field of test analysis, can solve the problems of indistinguishable information, inability to analyze and kinetic calculation, etc., and achieve the effect of expanding the scope of application

Active Publication Date: 2018-12-11
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such samples, the TG and DSC data obtained by thermal analysis test are the result of the superposition of mass changes or heat changes of multiple single reactions, so it is impossible to distinguish the information of each single reaction in complex reactions
Therefore, traditional methods can only obtain macroscopic kinetic equations ...

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 single reaction dynamics from complex reaction based on thermal analysis-infrared analysis combination
  • Method for calculating single reaction dynamics from complex reaction based on thermal analysis-infrared analysis combination
  • Method for calculating single reaction dynamics from complex reaction based on thermal analysis-infrared analysis combination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0057] The specific steps of the present invention will be described in detail below in conjunction with the accompanying drawings. The thermal reaction process of a certain sample includes two single reactions of dehydration and decarburization, and these two single reactions have overlapping temperature ranges. For this case, it is impossible to calculate the kinetics of dehydration and decarburization by using the usual thermal analysis kinetics method. However, by using the present invention, two single reaction processes can be distinguished, and the kinetic calculation of the single reaction can be performed. The concrete steps of this embodiment are as follows:

[0058] A method for calculating the kinetics of a single reaction from complex reactions based on thermal analysis-infrared analysis, comprising the following steps:

[0059] ...

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

No PUM Login to view more

Abstract

The invention discloses a method for calculating single reaction dynamics from complex reaction based on thermal analysis-infrared analysis combination. According to the method, a thermal analysis-infrared analysis combination combined test means is adopted, on-line detection is carried out on a gaseous product generated by thermal analysis through an infrared absorption spectrum, the infrared absorption spectrum information of the gas product is recorded in real time, and gas component analysis and flow calculation are carried out; and a characteristic gas product capable of representing thesingle reaction process is selected, the flow data of the characteristic gas single component are extracted and are converted into reaction conversion rate-time (temperature) data points after being subjected to mathematical treatment, and dynamics computation of the single reaction is carried out according to the data points. Compared with the prior art, the method has the advantages that the problem that the single reaction dynamics cannot be calculated from the overlapped complex reaction process due to the fact that traditional thermal analysis dynamics adopts TG or DSC data can be solved,a realization means is provided for research and control of the single reaction in the complex reaction, and the application range of thermal analysis dynamics is widened.

Description

technical field [0001] The invention belongs to the technical field of testing and analysis, in particular to a method for calculating single reaction kinetics from complex reactions based on thermal analysis-infrared analysis. Background technique [0002] Kinetic analysis is one of the basic methods of material research. Through kinetic analysis, thermal reaction characteristics, kinetic parameters (such as apparent activation energy, pre-exponential factor, etc.), reaction mechanism and kinetic equations of materials can be obtained. The traditional kinetic analysis method is to use thermal analysis, use the TG or DSC data obtained from the thermal analysis test to calculate the reaction conversion rate data, and then perform fitting calculations on the reaction conversion rate-temperature (or time) data according to the kinetic algorithm, so as to obtain Parameters and kinetic equations such as apparent activation energy, pre-exponential factor and reaction mechanism. ...

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
IPC IPC(8): G01N21/3504G01N25/20
CPCG01N21/3504G01N25/20
Inventor 酒少武杨爱武成思萌陈延信李辉
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND 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