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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2023.05.054
|2 doi
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|a pubmed24n1193.xml
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|a (DE-627)NLM357921429
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|a (NLM)37290340
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|a (PII)S0956-053X(23)00423-3
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Berkane, Imene
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Evaluation of thermal drying for the recycling of flexible plastics
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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 22.08.2023
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|a Date Revised 22.08.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023. Published by Elsevier Ltd.
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|a The drying of flexible plastic waste is a current industrial problem in the plastic recycling sector. The thermal drying of plastic flakes is considered the most expensive and the most energy-consuming step in the recycling chain, which represents an environmental issue. This process is already present on the industrial scale but not well described in the literature. A better understanding of this process for this material will lead to the design of environmentally efficient dryers with an improved performance. The objective of this research was to investigate the behavior of flexible plastic in a convective drying process at a laboratory scale. The focus was to study the factors affecting this process such as velocity, moisture, size and thickness of the plastic flakes in both fixed and fluidized bed systems and to develop a mathematical model for predicting the drying rate considering heat and mass transfer of convective drying. Three models were investigated: the first one was based on a kinetic correlation of the drying, and the second and third models were based on heat and mass transfer mechanisms, respectively. It was found that heat transfer was the predominant mechanism of this process, and the prediction of the drying was possible. The mass transfer model, on the other hand, did not give good results. Amongst five semi-empirical drying kinetic equations, three equations (Wang and Singh, logarithmic and 3rd-degree polynomial) provided the best prediction for both fixed and fluidized bed systems
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|a Journal Article
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|a Evaporation rate
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|a Flexible plastic
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|a Heat transfer
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|a Mass transfer
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|a Thermal drying
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|a Plastics
|2 NLM
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1 |
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|a Aracil, Ignacio
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fullana, Andrés
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 168(2023) vom: 01. Aug., Seite 116-125
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
1 |
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|g volume:168
|g year:2023
|g day:01
|g month:08
|g pages:116-125
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|u http://dx.doi.org/10.1016/j.wasman.2023.05.054
|3 Volltext
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|d 168
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