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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2023.03.010
|2 doi
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|a pubmed24n1181.xml
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|a (DE-627)NLM354533290
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|a (NLM)36948115
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|a (PII)S0956-053X(23)00229-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Chen, Ye
|e verfasserin
|4 aut
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|a Enhanced bromine fixation and tar lightweighting in co-pyrolysis of non-metallic fractions of waste printed circuit boards with Bayer red mud
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 04.04.2023
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|a Date Revised 04.04.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier Ltd. All rights reserved.
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|a A co-pyrolysis process for non-metallic fractions (NMFs) from WPCBs with Bayer red mud (RM) is proposed to upgrade pyrolysis products in this study. High bromine fixation efficiency was realized, and higher content of lightweight pyrolysis tar was obtained. The mechanism of catalytic pyrolysis and simultaneous bromine fixation of NMFs by RM was investigated by experiments and theoretical calculations. The three inorganic components of Fe2O3, CaCO3 and Al2O3 in RM played key roles in the catalytic pyrolysis of NMFs, and their order of catalytic debromination effect was CaCO3 > Fe2O3 > Al2O3. By adding 15 wt% RM, the pyrolysis solid residue could fix 89.55 wt% bromine, compared with 35.42 wt% of NMFs without adding RM, due to the formation of FeBr2 and CaBr2 from Fe2O3 and CaCO3 in RM, respectively. Tar lightweighting was realized by reducing the energy barrier of the direct decomposition of tetrabromobisphenol A (TBBPA) in NMFs. The order of effect of the three key components on the tar lightweighting was Fe2O3 > Al2O3 > CaCO3. The content of lightweight tar in the tar obtained by catalytic pyrolysis of NMFs with 15 wt% RM was 44.29% higher than that in the tar obtained by direct pyrolysis of NMFs. This work provides a theoretical guidance for the low-cost and eco-friendly recycling of e-wastes by co-pyrolysis with RM
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|a Journal Article
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|a Bromine fixation
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|a Catalytic pyrolysis
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|a Red mud
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|a Tar lightweighting
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|a Waste printed circuit boards (WPCBs)
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|a Bromine
|2 NLM
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| 650 |
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|a SBV4XY874G
|2 NLM
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| 700 |
1 |
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|a Ke, Yan
|e verfasserin
|4 aut
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1 |
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|a Liang, Sha
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Jingping
|e verfasserin
|4 aut
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| 700 |
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|a Hou, Huijie
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Jiakuan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 162(2023) vom: 01. Mai, Seite 72-82
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:162
|g year:2023
|g day:01
|g month:05
|g pages:72-82
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|u http://dx.doi.org/10.1016/j.wasman.2023.03.010
|3 Volltext
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|d 162
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