用热重分析仪评估键盘塑料垃圾的热解动力学

IF 1 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Journal of Environmental Engineering and Landscape Management 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

Journal of Environmental Engineering and Landscape Management 环境科学-环境科学

CiteScore

1.90

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Environmental Engineering and Landscape Management publishes original research about the environment with emphasis on sustainability.