Probing the combustion and pyrolysis behaviors of polyurethane foam from waste refrigerators
文献类型：期刊论文
| 作者 | Yao, Zhitong1; Yu, Shaoqi1; Su, Weiping1; Wu, Daidai2 ; Liu, Jie1; Wu, Weihong1; Tang, Junhong1
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| 刊名 | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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| 出版日期 | 2019-12-02 |
| 页码 | 12 |
| ISSN号 | 1388-6150 |
| 关键词 | Polyurethane foam Combustion Pyrolysis Decomposition mechanism Fate of halogens |
| DOI | 10.1007/s10973-019-09086-8 |
| 通讯作者 | Yao, Zhitong(sxyzt@126.com) ; Tang, Junhong(tang_jhjh@163.com) |
| 英文摘要 | Polyurethane foam (PUR) from waste refrigerators has long been recognized as a difficult-to-treat electronic waste, due to its bulkiness, low weight and chlorofluorocarbon content. In this work, the combustion and pyrolysis behaviors of PUR were investigated using a versatile thermogravimetric-Fourier infrared spectrum-mass spectrum (TG/FT-IR/MS) technique. The decomposition mechanisms in both thermal processes were determined, and the fate of halogens was probed well. TG analysis indicated that the PUR combustion could be divided into three main stages with peak temperatures of 328, 557 and 970 degrees C, respectively. As a comparison, its pyrolysis could be divided into two steps with peak temperatures of 332 and 970 degrees C. FT-IR results indicated that the PUR combusted vigorously at 400-600 degrees C, whereas it decomposed drastically at the lower temperature of 200-400 degrees C in pyrolysis. MS analysis revealed that the urethane bonds in the PUR molecules broke into isocyanates and polyols at 200-400 degrees C in combustion, which further decomposed at 400-650 degrees C and reacted with halogens. However, the ester bonds ruptured into aromatic nitro compounds and ethers at 200 degrees C below in pyrolysis. At higher temperature range of 200-500 degrees C, more halogenated derivatives were detected with lower intensity. In addition to the halogenated products such as chlorofluorocarbons, chlorobenzene, dichlorobenzene, o-chloroaniline, and trifluoroacetone, small molecules of hydrogen cyanide, ammonia, carbon dioxide, carbon monoxide were all detected. |
| WOS关键词 | THERMAL-DEGRADATION ; EMISSIONS ; PRODUCTS ; DISPOSAL ; COMPLEX ; CFC-11 |
| 资助项目 | National Natural Science Foundation of China[51606055] ; National Natural Science Foundation of China[51911530460] ; Zhejiang Provincial Natural Science Foundation of China[LY19B070008] |
| WOS研究方向 | Thermodynamics ; Chemistry |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000500206500001 |
| 资助机构 | National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/25922]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Yao, Zhitong; Tang, Junhong |
| 作者单位 | 1.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Zhitong,Yu, Shaoqi,Su, Weiping,et al. Probing the combustion and pyrolysis behaviors of polyurethane foam from waste refrigerators[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2019:12. |
| APA | Yao, Zhitong.,Yu, Shaoqi.,Su, Weiping.,Wu, Daidai.,Liu, Jie.,...&Tang, Junhong.(2019).Probing the combustion and pyrolysis behaviors of polyurethane foam from waste refrigerators.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,12. |
| MLA | Yao, Zhitong,et al."Probing the combustion and pyrolysis behaviors of polyurethane foam from waste refrigerators".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2019):12. |
入库方式： OAI收割
来源：广州能源研究所
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