RCEES OpenIR  > 环境纳米技术与健康效应重点实验室
Formation behavior of PAHs during pyrolysis of waste tires
Ye, Wenwen; Xu, Xu; Zhan, Mingxiu; Huang, Qunxing; Li, Xiaodong; Jiao, Wentao; Yin, Yongguang
2022-08-05
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume435Issue:0Pages:128997
AbstractPolycyclic aromatic hydrocarbons (PAHs) formation from the pyrolysis of waste tires is inevitable because of the complexity of tire formulations and the addition of certain chemicals. In this study, the formation behavior and distribution of PAHs in three-phases were investigated from waste tires under pyrolysis conditions. The influencing factors including the temperature, heating rate, holding time, particle size, catalyzer, and atmosphere, were systematically evaluated. The results showed that PAHs were mainly concentrated in pyrolysis oil (94.59-99.03%), followed by the gas phase (0.96-5.34%), and their content was very low in the solid phase (0.01-0.99%). A higher temperature and slower heating rate lead to partial PAHs decomposition, thus reducing their emissions. The overall formation of PAHs can be inhibited when pyrolyzing coarse-grained tire powder. Furthermore, the PAHs formation mechanisms in waste tires were determined through reaction molecular dynamics, electron paramagnetic resonance, and intermediate products. Tires were mainly decomposed into benzene series, *C2H3, and *CH3; therefore, it was determined that PAHs were formed by the joint action of the hydrogen abstraction, and vinyl radical addition and methyl addition cyclization mechanisms. Among them, low and middle-ring PAHs were formed more easily, particularly naphthalene. The generation of PAHs can be inhibited by reducing the concentration of hydrocarbons and monocyclic benzene series. Regarding the distribution law and generation pathways of PAHs, our results provide guidance for reducing PAHs formation and emissions.
Department环境纳米技术与健康效应重点实验室; ; 环境纳米技术与健康效应重点实验室;
KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS CATALYTIC FAST PYROLYSIS FORMATION MECHANISM ORGANIC-COMPOUNDS SEWAGE-SLUDGE TG-FTIR BIO-OIL TEMPERATURE DEGRADATION PRODUCTS
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47656
Collection环境纳米技术与健康效应重点实验室
Corresponding AuthorZhan, Mingxiu
Affiliation1.China Jiliang Univ, Coll Metrol & Measurement Engn, Hangzhou 310018, Zhejiang, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Haidian Dist, Beijing 100085, Peoples R China
3.Zhejiang Univ, Inst Thermal Power Engn, State Key Lab Clean Energy Utilizat, Hangzhou 310058, Peoples R China
Recommended Citation
GB/T 7714
Ye, Wenwen,Xu, Xu,Zhan, Mingxiu,et al. Formation behavior of PAHs during pyrolysis of waste tires[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,435(0):128997.
APA Ye, Wenwen.,Xu, Xu.,Zhan, Mingxiu.,Huang, Qunxing.,Li, Xiaodong.,...&Yin, Yongguang.(2022).Formation behavior of PAHs during pyrolysis of waste tires.JOURNAL OF HAZARDOUS MATERIALS,435(0),128997.
MLA Ye, Wenwen,et al."Formation behavior of PAHs during pyrolysis of waste tires".JOURNAL OF HAZARDOUS MATERIALS 435.0(2022):128997.
Files in This Item: Download All
File Name/Size DocType Version Access License
Formation behavior o(6226KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ye, Wenwen]'s Articles
[Xu, Xu]'s Articles
[Zhan, Mingxiu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ye, Wenwen]'s Articles
[Xu, Xu]'s Articles
[Zhan, Mingxiu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ye, Wenwen]'s Articles
[Xu, Xu]'s Articles
[Zhan, Mingxiu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Formation behavior of PAHs during pyrolysis of waste tires.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.