Catalytic cracking of polyethylene waste in horizontal tube reactor

A. Angyal, N. Miskolczi, L. Bartha, I. Valkai

Research output: Article

18 Citations (Scopus)


In this study catalytic and thermal cracking of polyethylene waste were investigated in continued tube reactor system. HZSM-5 and equilibrium FCC type catalysts were tested. Both the resistance to deactivation and the regeneration process of the catalyst were studied. Reaction temperature of 545 °C and residence time of 20 min were used during the cracking treatment. The reaction products were analyzed and the textural properties of catalysts were also determined. It was found that after the first reaction run the FCC catalyst lost 75% of its cracking activity, in case of HZSM-5 the rate of deactivationwas higher. The cracking activity of catalyst could be improved by regeneration process with only 2-3% compared to the coked catalyst. The isomerisation effect of the catalysts was also observed. The effect of coked FCC catalyst could be improved by the regeneration process with 50% in case of HZSM-5 it was only 25%.

Original languageEnglish
Pages (from-to)1678-1683
Number of pages6
JournalPolymer Degradation and Stability
Issue number10
Publication statusPublished - okt. 2009

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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