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2010 | 12 | 3 | 50-57
Article title

Thermal and thermo-catalytic degradation of polyolefins as a simple and efficient method of landfill clearing

Content
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Languages of publication
EN
Abstracts
EN
Thermal degradation of the low density polyethylene (LDPE), polypropylene (PP) and the municipal waste plastics was investigated. The thermo-catalytic degradation of LDPE and PP was studied in the presence of the following catalysts: four different types of montmorillonite: K5, K10, K20, K30 and - for comparison - zeolites (natural - clinoptilolite, YNa+ and YH+). Thermal analyses TG-DTA-MS of polymers and polymer-catalyst mixtures were carried out in an argon flow atmosphere in isothermal and dynamic conditions. The following order was found: in lowering the reaction temperature for LDPE degradation YH+ > mK5 > mK20 = mK30 >mK10 > NZ > YNa+; for PP degradation: mK20 > mK5 = mK30 >mK10 > YH+ > NZ > YNa+. The activity tests were carried out in a stainless steel batch reactor under atmospheric pressure in a wide temperature range of up to 410°C, and using the atmosphere of argon flow. The liquid products were analysed by the GC-MS method. The hydrocarbons in the liquid products from thermal degradation of polymers were broadly distributed in the carbon fractions of C8 to C26 - for LDPE and C6 to C31 for PP.
Publisher
Year
Volume
12
Issue
3
Pages
50-57
Physical description
Dates
published
1 - 1 - 2010
online
27 - 9 - 2010
Contributors
  • Institute of General and Ecological Chemistry, Technical University of Lodz, ul. Żeromskiego 116, 90-924 Łódź, Poland
  • Institute of General and Ecological Chemistry, Technical University of Lodz, ul. Żeromskiego 116, 90-924 Łódź, Poland
  • Institute of General and Ecological Chemistry, Technical University of Lodz, ul. Żeromskiego 116, 90-924 Łódź, Poland
References
  • PlasticsEurope. (2009, October). The Compelling Facts About Plastics 2009. An analysis of European plastics production, demand and recovery for 2008. Retrieved November 3. 2009, from
  • Rabek, J. F. (2008). Contemporary knowledge of polymers. Warszawa, Polska: Wydawnictwo Naukowe PWN (in Polish).
  • Mucha, M. (2002). Polymers and ecology. Łódź, Polska: Wydawnictwo Politechniki Łódzkiej (in Polish).
  • Tomaszewska, K. & Jóźwiak, W. K. (2009). Aluminosilicates in thermo-catalytic degradation of low density polyethylene, Pol. J. Environ. Stud. 18 1B, 232-236.
  • Pielichowski, K. & Njugana, J. (2005). Thermal degradation of polymeric materials. Shawbury, United Kingdom: Rapra Technology Limited.
  • Reverte, C., Dirion, J. L. & Cabassud, M. (2007). Kinetic model identification and parameters estimation from TGA experiments. J. Anal. Appl. Pyrolysis 79, 297-305. DOI: 10.1016/j.jaap.2006.12.021.[WoS][Crossref]
  • Abate, L., Blanco, I., Pollicino, A. & Recca, A. (2002). Determination of degradation apparent activation energy values of polymers Regression of kinetic parameters derived from TG data. J. Therm. Anal. Calorim. 70, 63-73.[Crossref]
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10026-010-0034-x
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