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Comparative study on the pyrolysis kinetics of polyurethane foam from waste refrigerators

文献类型：期刊论文

作者Yao, Zhitong1,3; Yu, Shaoqi1; Su, Weiping1; Wu, Weihong1; Tang, Junhong1; Qi, Wei2
刊名WASTE MANAGEMENT & RESEARCH
出版日期2020-03-01
卷号38期号:3页码:271-278
关键词Polyurethane foam electronic waste pyrolysis kinetics model-fitting and -free method distributed activation energy model
ISSN号0734-242X
DOI10.1177/0734242X19877682
通讯作者Yao, Zhitong(sxyzt@126.com)
英文摘要Thermal treatment offers advantages of significant volume reduction and energy recovery for the polyurethane foam from waste refrigerators. In this work, the pyrolysis kinetics of polyurethane foam was investigated using the model-fitting, model-free and distributed activation energy model methods. The thermogravimetric analysis indicated that the polyurethane foam decomposition could be divided into three stages with temperatures of 38 degrees C-400 degrees C, 400 degrees C-550 degrees C and 550 degrees C-1000 degrees C. Peak temperatures for the major decomposition stage (<400 degrees C) were determined as 324 degrees C, 342 degrees C and 344 degrees C for heating rates of 5, 15 and 25 K min-1, respectively. The activation energy (Ealpha) from the Friedman, Flynn-Wall-Ozawa and Tang methods increased with degree of conversion (alpha) in the range of 0.05 to 0.5. The coefficients from the Flynn-Wall-Ozawa method were larger and the resulted E alpha values fell into the range of 163.980-328.190 kJ mol-1 with an average of 206.099 kJ mol-1. For the Coats-Redfern method, the diffusion models offered higher coefficients, but the E values were smaller than that from the Flynn-Wall-Ozawa method. The E alpha values derived from the distributed activation energy model method were determined as 163.536-334.231 kJ mol-1, with an average of 206.799 kJ mol-1. The peak of activation energy distribution curve was located at 205.929 kJ mol-1, consistent with the thermogravimetric results. The Flynn-Wall-Ozawa and distributed activation energy model methods were more reliable for describing the polyurethane foam pyrolysis process.
WOS关键词ACTIVATION-ENERGY MODEL ; THERMAL-DEGRADATION ; CORNCOB SACCHARIFICATION ; BIOMASS ; COMBUSTION ; THERMOGRAVIMETRY ; DECOMPOSITION ; PARAMETERS ; MANAGEMENT ; PRODUCTS
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000513377100006
出版者SAGE PUBLICATIONS LTD
源URL[http://ir.giec.ac.cn/handle/344007/26435]  
专题中国科学院广州能源研究所
通讯作者Yao, Zhitong
作者单位1.Hangzhou Dianzi Univ, Coll Materials, Environm Engn, Hangzhou, Peoples R China
2.Guangzhou Inst Energy Convers, Chinese Acad Sciences, Guangzhou, Peoples R China
3.Hangzhou Dianzi Univ, Coll Materials, Zhitong Yao, Environm Engn, Hangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Yao, Zhitong,Yu, Shaoqi,Su, Weiping,et al. Comparative study on the pyrolysis kinetics of polyurethane foam from waste refrigerators[J]. WASTE MANAGEMENT & RESEARCH,2020,38(3):271-278.
APA Yao, Zhitong,Yu, Shaoqi,Su, Weiping,Wu, Weihong,Tang, Junhong,&Qi, Wei.(2020).Comparative study on the pyrolysis kinetics of polyurethane foam from waste refrigerators.WASTE MANAGEMENT & RESEARCH,38(3),271-278.
MLA Yao, Zhitong,et al."Comparative study on the pyrolysis kinetics of polyurethane foam from waste refrigerators".WASTE MANAGEMENT & RESEARCH 38.3(2020):271-278.

入库方式： OAI收割

来源：广州能源研究所

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