期刊
WASTE MANAGEMENT
卷 137, 期 -, 页码 110-120出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2021.10.027
关键词
Carbon black; Partial oxidation; Process variables; Spent tyre pyrolysis oil; Surface chemistry
资金
- Australia Research Council [LP160100035, LEI120100026]
- Keshi Technologies Pty Ltd under the Australian Research Council [LP160100035]
- Australian Government Research Training Program Scholarship
- AD HOC Postgraduate Research Scholarship at The University of Western Australia and Center for Energy
- University Government
- State Government
- Commonwealth Government
- Australian Research Council [LP160100035] Funding Source: Australian Research Council
This study prepared carbon black using a drop tube furnace to promote the use of recycled waste materials as an industrial feedstock. The yield and properties of the carbon black were found to be affected by reaction temperature, oxygen concentration, and residence time. Characterization showed that the carbon black produced from recycled waste materials had comparable properties to commercial products, indicating its potential for use in circular economy strategies.
To promote the use of recycled waste materials as an industrial feedstock, this study examined the preparation of carbon black (CB) by partial oxidation of a spent tyre pyrolysis oil using a drop tube furnace. The effect of reaction temperature, the residence time of gas in the reactor and inlet gas oxygen concentration on the yield and properties of the CB were evaluated. The surface chemistry, chemical composition, morphological and thermal properties of the CB samples were characterised using XPS, EA, TEM, BET, and TGA, respectively. The CB yield increased with increasing reaction temperature but decreased as the residence time or oxygen concentration increases. The CB primarily consisted of C (90.5-98.6%) and O (0.9-7.4%), with small traces of S (<1%), Si (<1%) and H (<2%). Hydroxyl, carbonyl, and carboxyl are the key functional groups found on the CB surface, with the hydroxyl groups being dominant. The CB were highly graphitic with a lattice spacing in the range of 0.338-0.350 nm and had BET surface areas of 4-22 m2g & 1. The mean primary particle size ranged from 92 to 176 nm and decreased with increasing reaction temperature and oxygen concentration. The CB aggregate configuration became more complex with increasing reaction temperature, residence time and oxygen concentration. The results were not only comparable with commercial CB products from fossil fuel feedstocks but are expected to provide the needed motivation to move towards circular economy strategies, which have positive impacts from a sustainability perspective.
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