20.500.12556/DKUM-85898 Degradation of polyvinyl chloride (PVC) waste with supercritical water The chemical degradation of PVC waste in SCW between 400 and 425 °C and reaction times from 30 to 60 min was studied. The PVC waste in SCW decomposed into the gas, oil, water soluble, and solid phases. The highest yield of the gas and oil phases was achieved at the temperature of 425 °C after 60 min. By increasing the reaction time at 400 °C, the yield of chloride ions in the aqueous phase increased and reached the maximum at 60 min. The gas and oil phases contained many valuable compounds similar to crude oil. Alkanes and chloroalkanes; alkenes, alicyclic, and aromatic hydrocarbons; as well as alcohols were the main groups of hydrocarbons in the oil phase, while the gas phase contained only light hydrocarbons (C1–C6), CO2, and small amounts of H2. This confirmed that the largest chlorine content remains in the aqueous phase and does not pass into the gas phase. It can be concluded that SCW presents effective decomposition media for plastic waste. polyvinyl chloride supercritical water chemical recycling plastic waste polivinil klorid superkritična voda plastični odpadki true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/processes © 2022 by the authors Znanstveno delo 2023-09-18 13:06:31 2023-09-18 13:06:31 2025-05-15 08:33:59 0000-00-00 00:00:00 2022 0 0 14 str. Št. 10, številka članka 1940 Letn. 10 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2022-08-28 2022-09-22 2022-09-26 66.02 127802883 10.3390/pr10101940 2227-9717 Degradation_of_Polyvinyl_Chloride-Colnik-2022.pdf Degradation_of_Polyvinyl_Chloride-Colnik-2022.pdf 1 EE071C299FB429D945C87F62535D568B 7e03cfc5eeff2f463cfdcdfa2c75b11314e9c0917eb3e7d4382a321f405521a9 fc4f90e4-5613-11ee-86d1-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=172442 https://www.mdpi.com/2227-9717/10/10/1940 0 02dede16-5614-11ee-86d1-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=172443 Fakulteta za kemijo in kemijsko tehnologijo Medicinska fakulteta 0 0 0