TG-FTIR and Py-GC/MS study of the pyrolysis mechanism and composition of volatiles from flash pyrolysis of PVC

doi:10.1016/j.joei.2020.07.009

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	TG-FTIR and Py-GC/MS study of the pyrolysis mechanism and composition of volatiles from flash pyrolysis of PVC
	Zhou, Jingjing 1,2,3; Liu, Guijian 1,3; Wang, Shuibing 1; Zhang, Hong 1; Xu, Fanfan 4
通讯作者	Liu, Guijian(lgj@ustc.edu.cn)
	2020-12-01
发表期刊	JOURNAL OF THE ENERGY INSTITUTE
ISSN	1743-9671
卷号	93 期号:6 页码:2362-2370
摘要	To facilitate the reuse and recycling of polyvinyl chloride (PVC) to achieve sustainable development and new industrialization, the composition and mechanism of formation of volatiles during the flash py-rolysis of PVC were studied by thermogravimetry-Fourier transform infrared (TG-FTIR) and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). TG and derivative thermogravimetry (DTG) analyses indicated two main degradation stages during flash pyrolysis of PVC, namely dehydrochlorination of PVC and decomposition of dechlorinated-PVC. Simultaneously, the FTIR results revealed that the main functional groups in the pyrolysis process were H-Cl,-C-Cl, C-H, C=H, and aromatic groups. The relative content of main volatiles was determined by Py-GC/MS, and decreased in the following order: aromatics > alkenes > hydrogen chloride (HCl) > chlorinated hydrocarbons. Specifically, the relative content of aromatics was as high as 76.790-81.809%, while that of HCl was in the range of 3.016-3.096%. The carbon number distribution and the relative content of main products obtained from the flash py-rolysis of PVC at different final temperatures were also analysed. According to the experimental results, the mechanism of formation of the main volatiles based on free-radical reactions was deduced in detail. Therefore, this study provides further details for deepening the understanding of the PVC pyrolysis process. (C) 2020 Energy Institute. Published by Elsevier Ltd. All rights reserved.
关键词	Polyvinyl chloride Pyrolysis behaviour Volatiles composition Pyrolysis mechanism Thermogravimetry-fourier transform infrared Pyrolysis-gas chromatography/mass spectrometry
DOI	10.1016/j.joei.2020.07.009
关键词[WOS]	HIGH HEATING RATE ; OIL SAND BITUMEN ; THERMAL-DEGRADATION ; CO-PYROLYSIS ; AROMATIC-HYDROCARBONS ; PRODUCTS DISTRIBUTION ; VACUUM PYROLYSIS ; MIXED PLASTICS ; WASTE ; KINETICS
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41972166] ; National Natural Science Foundation of China[41173032]
WOS研究方向	Energy & Fuels
项目资助者	National Natural Science Foundation of China
WOS类目	Energy & Fuels
WOS记录号	WOS:000590677900007
出版者	ELSEVIER SCI LTD
引用统计	被引频次：71[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15678
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Liu, Guijian
作者单位	1.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Sch Earth & Space Sci, Hefei 230026, Peoples R China 2.Huainan Normal Univ, Sch Chem & Mat Engn, Huainan 232038, Peoples R China 3.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Peoples R China 4.China Univ Petr East China, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Jingjing,Liu, Guijian,Wang, Shuibing,et al. TG-FTIR and Py-GC/MS study of the pyrolysis mechanism and composition of volatiles from flash pyrolysis of PVC[J]. JOURNAL OF THE ENERGY INSTITUTE,2020,93(6):2362-2370.
APA	Zhou, Jingjing,Liu, Guijian,Wang, Shuibing,Zhang, Hong,&Xu, Fanfan.(2020).TG-FTIR and Py-GC/MS study of the pyrolysis mechanism and composition of volatiles from flash pyrolysis of PVC.JOURNAL OF THE ENERGY INSTITUTE,93(6),2362-2370.
MLA	Zhou, Jingjing,et al."TG-FTIR and Py-GC/MS study of the pyrolysis mechanism and composition of volatiles from flash pyrolysis of PVC".JOURNAL OF THE ENERGY INSTITUTE 93.6(2020):2362-2370.