Probing the combustion and pyrolysis behaviors of polyurethane foam from waste refrigerators

doi:10.1007/s10973-019-09086-8

GIEC OpenIR

	Probing the combustion and pyrolysis behaviors of polyurethane foam from waste refrigerators
	Yao, Zhitong 1; Yu, Shaoqi 1; Su, Weiping 1; Wu, Daidai2 ; Liu, Jie 1; Wu, Weihong 1; Tang, Junhong 1
	2019-12-02
发表期刊	JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN	1388-6150
页码	12
通讯作者	Yao, Zhitong(sxyzt@126.com) ; Tang, Junhong(tang_jhjh@163.com)
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.
关键词	Polyurethane foam Combustion Pyrolysis Decomposition mechanism Fate of halogens
DOI	10.1007/s10973-019-09086-8
关键词[WOS]	THERMAL-DEGRADATION ; EMISSIONS ; PRODUCTS ; DISPOSAL ; COMPLEX ; CFC-11
收录类别	SCI
语种	英语
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
项目资助者	National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China
WOS类目	Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical
WOS记录号	WOS:000500206500001
出版者	SPRINGER
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/25923
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.