{"title":"改良弗里德曼等转化动力学法计算废轮胎橡胶热解的有效活化能","authors":"Zhen Zhang, Xiaoguang Zheng, Junmeng Cai","doi":"10.1007/s11144-024-02629-7","DOIUrl":null,"url":null,"abstract":"<div><p>A modified Friedman isoconversional method based on the weight-loss data was proposed to determine the kinetics models and parameters. Thermal pyrolysis kinetic characteristics of waste tire rubber (WTR) samples under nitrogen conditions was investigated by measuring the rate of mass loss as a function of time and temperature. The obtained thermal pyrolysis data was applied to analyze the kinetic parameters using the Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS) and modified Friedman isoconversional methods. The results showed that the modified Friedman isoconversional method was used to provide the most precise values of activation energy for WTR pyrolysis, which ranged from 130.5 to 177.6 kJ/mol with the conversion range of 0.1–0.9. It can avoid systematic errors in the FWO and KAS methods. These data were in good agreement with the values reported in the related previous studies. Therefore, the modified Friedman method provides an accurate and effective way to explain the pyrolysis parameters and equations of kinetics in WTR.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modified Friedman isoconversional kinetic method for effective activation energies of waste tires rubber pyrolysis\",\"authors\":\"Zhen Zhang, Xiaoguang Zheng, Junmeng Cai\",\"doi\":\"10.1007/s11144-024-02629-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A modified Friedman isoconversional method based on the weight-loss data was proposed to determine the kinetics models and parameters. Thermal pyrolysis kinetic characteristics of waste tire rubber (WTR) samples under nitrogen conditions was investigated by measuring the rate of mass loss as a function of time and temperature. The obtained thermal pyrolysis data was applied to analyze the kinetic parameters using the Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS) and modified Friedman isoconversional methods. The results showed that the modified Friedman isoconversional method was used to provide the most precise values of activation energy for WTR pyrolysis, which ranged from 130.5 to 177.6 kJ/mol with the conversion range of 0.1–0.9. It can avoid systematic errors in the FWO and KAS methods. These data were in good agreement with the values reported in the related previous studies. Therefore, the modified Friedman method provides an accurate and effective way to explain the pyrolysis parameters and equations of kinetics in WTR.</p></div>\",\"PeriodicalId\":750,\"journal\":{\"name\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-04-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11144-024-02629-7\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reaction Kinetics, Mechanisms and Catalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11144-024-02629-7","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Modified Friedman isoconversional kinetic method for effective activation energies of waste tires rubber pyrolysis
A modified Friedman isoconversional method based on the weight-loss data was proposed to determine the kinetics models and parameters. Thermal pyrolysis kinetic characteristics of waste tire rubber (WTR) samples under nitrogen conditions was investigated by measuring the rate of mass loss as a function of time and temperature. The obtained thermal pyrolysis data was applied to analyze the kinetic parameters using the Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS) and modified Friedman isoconversional methods. The results showed that the modified Friedman isoconversional method was used to provide the most precise values of activation energy for WTR pyrolysis, which ranged from 130.5 to 177.6 kJ/mol with the conversion range of 0.1–0.9. It can avoid systematic errors in the FWO and KAS methods. These data were in good agreement with the values reported in the related previous studies. Therefore, the modified Friedman method provides an accurate and effective way to explain the pyrolysis parameters and equations of kinetics in WTR.
期刊介绍：
Reaction Kinetics, Mechanisms and Catalysis is a medium for original contributions in the following fields:
-kinetics of homogeneous reactions in gas, liquid and solid phase;
-Homogeneous catalysis;
-Heterogeneous catalysis;
-Adsorption in heterogeneous catalysis;
-Transport processes related to reaction kinetics and catalysis;
-Preparation and study of catalysts;
-Reactors and apparatus.
Reaction Kinetics, Mechanisms and Catalysis was formerly published under the title Reaction Kinetics and Catalysis Letters.
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