Effects of molten salt thermal treatment on the properties improvement of waste tire pyrolytic char
文献类型：期刊论文
| 作者 | Zou, Chan1,3; Ren, Yang3; Li, Songgeng2; Hu, Hongyun1,3; Cao, Chengyang1,3; Tang, Hua3; Li, Xian3; Yao, Hong3 |
| 刊名 | Waste Management
 |
| 出版日期 | 2022-07-15 |
| 卷号 | 149页码:53-59 |
| 关键词 | Carbon black - Chemical properties - Fused salts - Particle size - Pyrolysis - Tires - Waste treatment |
| ISSN号 | 0956053X |
| DOI | 10.1016/j.wasman.2022.05.028 |
| 英文摘要 | Pyrolysis is a technical means for waste tires recycling, which can promote the enrichment of carbon black and facilitate the subsequent recovery. However, carbon black particles aggregated and the inorganic impurities tended to be enriched in pyrolytic char during the waste tire pyrolysis process, which is not conducive to the substitution of commercial carbon black by pyrolytic char. In the present study, a novel method using molten salts thermal treatment was proposed for the impurities removal from pyrolytic chars with different characteristics. In addition, the proper thermal treatment conditions were further estimated to obtain better performance for the physical鈥揷hemical properties improvement of pyrolytic char. Six kinds of char samples were chosen to conduct molten salts thermal treatment (MSTT) experiments at 350, 400, and 450 掳C. The experimental results show that MSTT can effectively remove the impurities of different pyrolytic chars, and the most optimum reaction conditions are at 400 掳C, 2 h of reaction time, and molten salt/char ratio of 10:1. In addition, after MSTT, the pyrolytic char was depolymerized, and the average particle size reduced from 36.63 渭m to 19.08 渭m, the specific surface area increased from 49 m2/g to 73 m2/g. At the same time, the graphite carbon content of the pyrolytic char increased from 24.41% to 70.90%, and the hydroxyl content on the pyrolytic char surface increased significantly. In summary, the physical鈥揷hemical properties of waste tire pyrolytic char were improved by MSTT, which is close to the carbon black N550 level. 漏 2022 Elsevier Ltd |
| 学科主题 | Heat Treatment |
| 项目编号 | This work was supported by National Key Research and Development Program of China (2018YFC1902604), the State Key Laboratory of Multi-Phase Complex Systems Open Project (MPCS2021D02), and Shenzhen Science and Technology Innovation Committee (JCYJ20210324115606017). The authors also gratefully acknowledge the assistance of the Analytic and Testing Center of Huazhong University of Science and Technology for the experimental measurements. |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61245]  |
| 作者单位 | 1.Research Institute of Huazhong University of Science and Technology in Shenzhen, Shenzhen; 518000, China 2.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China |
| 推荐引用方式 GB/T 7714 | Zou, Chan,Ren, Yang,Li, Songgeng,et al. Effects of molten salt thermal treatment on the properties improvement of waste tire pyrolytic char[J]. Waste Management,2022,149:53-59. |
| APA | Zou, Chan.,Ren, Yang.,Li, Songgeng.,Hu, Hongyun.,Cao, Chengyang.,...&Yao, Hong.(2022).Effects of molten salt thermal treatment on the properties improvement of waste tire pyrolytic char.Waste Management,149,53-59. |
| MLA | Zou, Chan,et al."Effects of molten salt thermal treatment on the properties improvement of waste tire pyrolytic char".Waste Management 149(2022):53-59. |
入库方式： OAI收割
来源：过程工程研究所
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