Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/22874

TitleStudy of a two steps process for the valorization of PVC-containing wastes
Author(s)Castro, Alexandra
Carneiro, Carlos
Vilarinho, Cândida
Soares, Delfim
Maçães, César
Sousa, Célia
Castro, F.
KeywordsPyrolysis
Thermal degradation
PVC-containing waste
Energetic valorization
Issue date2013
PublisherSpringer
JournalWaste and Biomass Valorization
Abstract(s)The presence of organic compounds in wastes, namely polymer based compounds, is considered a potential relevant source of energy. However, the presence of polyvinyl chloride (PVC) in their composition, causes recycling problems when a thermal process is considered for the wastes treatment [1] preventing its use on processes which the main goal is the energy recovery (Zevenhoven et al. in Fuel 81:507–510, 2002; Kim in Waste Manag 21:609–616, 2001). A possible solution should consider a first step for chlorine removal, through a pyrolysis process previously to a subsequent thermal treatment, for energetic valorization. The present work assesses a possible process for treating PVC-containing wastes in an environmentally friendly way. It is based on the effective de-chlorination of PVC-containing wastes through a pyrolysis process at low temperature before the carbonaceous residue (chlorine free fraction) being subjected to a subsequent thermal treatment for energetic valorization with the production of a synthesis gas (syngas). In the end of the process concentrated hydrochloric acid or other chlorine solutions and a syngas, with high energetic potential are obtained. The synthesis gas produced can be used in turbines or gas engines, replacing the gases obtained from fossil non-renewable resources. The validation of the proposed treatment of PVC-containing wastes in pilot scale has also been performed.
TypeArticle
DescriptionPublished online 27 November 2012
URIhttp://hdl.handle.net/1822/22874
DOI10.1007/s12649-012-9175-x
ISSN1877-2641
Publisher versionhttp://www.springer.com/home?SGWID=0-0-1003-0-0&aqId=2413598&download=1&checkval=6d80e2699168bdad8aa8106eaa1811ca
Peer-Reviewedyes
AccessOpen access
Appears in Collections:DEM - Artigos em revistas de circulação internacional com arbitragem científica

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