用热重分析仪评估键盘塑料垃圾的热解动力学

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-05-25 DOI:10.3846/jeelm.2022.16742

A. K. Panda, Satyanarayan Patnaik, Sachin Kumar

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引用次数: 0

摘要

在5、10、15、20、40、60和100°C/min的加热速率下，采用热重分析(TGA)方法对废弃计算机键盘塑料废弃物的动力学参数进行了估算。废旧电脑键盘塑料的总热值为38.96 MJ/Kg。FT-IR分析证实在键盘塑料废料中存在酒精、苯酚、醚、酯、羧酸、芳香和烯烃化合物。用Kissinger、Friedman、FWO和Coats-Redfern方法计算得到的活化能平均值分别为158.1668、198.883、193.612和197.765 kJmol−1。在这项工作中获得的动力学数据将有助于准确预测反应行为和设计有效的商业过程，将这些塑料废物转化为能源。

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PYROLYSIS KINETICS OF KEYBOARD PLASTIC WASTE USING THERMOGRAVIMETRIC ANALYSER TO ASSESS ITS ENERGY POTENTIAL

In this paper, the kinetic parameters of discarded computer keyboard plastic waste are estimated using thermogravimetric analysis (TGA) with four different non-isothermal kinetic models at a wide range of heating rates 5, 10, 15, 20, 40, 60 and 100 °C/min. The gross calorific value of waste computer keyboard plastic is 38.96 MJ/Kg. FT-IR analysis confirms the presence of alcohol, phenol, ether, ester, carboxylic acid, aromatic, and alkene compounds in keyboard plastic waste. The average values of activation energy are calculated as 158.1668, 198.883, 193.612, and 197.765 kJmol−1 from Kissinger, Friedman, FWO, and Coats-Redfern methods, respectively. The kinetic data obtained in this work would be useful for accurate prediction of reaction behaviour and in the design of efficient commercial process for the conversion of such plastic wastes to energy.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.