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https://hdl.handle.net/20.500.13091/4352
Title: | The role of physicochemical marble processing wastewater treatment sludge in the production of new generation pyrolysis char from waste polypropylene | Authors: | Kalem, Merve Sogancioglu Kurt, Afra Özgan Göktepeli, Gamze Önen, Vildan Ahmetli, Gülnare Yel, Esra |
Keywords: | Char industrial symbiosis marble processing wastewater sludge pyrolysis waste PP Catalytic Co-Pyrolysis Thermal-Decomposition Plastic Wastes Polyethylene Degradation Gasification Kinetics Fuel Cao |
Publisher: | Taylor & Francis Ltd | Abstract: | The effects of marble processing wastewater physicochemical treatment sludge (K1) on polypropylene (PP) waste pyrolysis were investigated by lab-scale batch pyrolysis system. PP-K1 proportions and pyrolysis temperature were studied as variables and both were found to have influences onto pyrolysis char, oil/tar, gas fractions distribution, as well as pyrolysis char characteristics (determined via SEM, EDX, FTIR, TGA and XRD analyses). The influence of K1 could be related to its high mineral composition (CaCO3, CaMg(CO3)(2) and (Mg0.03Ca0.97)(CO3)) which also detected in the char products. K1 acts as catalyst and remained unchanged in thermochemical reactions below 700 & DEG;C. The main thermal degradation of PP occurs around 400-470 & DEG;C, although it starts at about 300-350 & DEG;C, whereas, K1 resulted in more thermal degradation at 300 & DEG;C pyrolysis. As K1 dose increased, pyrolysis chars became more thermally stable with the pyrolysis temperature. Diverse types of chars in terms of porosity, thermal strength and chemical structure were produced with PP + K1 as compared to the PP chars. For example, with 10%-20% K1 doses, the chars are in aromatic structure while chars become aliphatic when K1 dosage increased to 30% or above. The structural diversity made these chars new products that can be used as raw material for subsequent purposes. This study provided a basis for the chars' physical and chemical properties which are needed for further research to develop new generation evaluation areas for them. Therefore, a new symbiotic upcycling approach has been presented for PP wastes and marble processing wastewater treatment sludge. | Description: | Article; Early Access | URI: | https://doi.org/10.1080/09593330.2023.2224927 https://hdl.handle.net/20.500.13091/4352 |
ISSN: | 0959-3330 1479-487X |
Appears in Collections: | PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collections Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
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The role of physicochemical marble processing wastewater treatment sludge in the production of new generation pyrolysis char from waste polypropylene.pdf Until 2030-01-01 | 4.13 MB | Adobe PDF | View/Open Request a copy |
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