Pyrolysis of Waste Plastics Using Catalysts: Activated Carbon, MCM-41 and HZSM-5

Norbert Miskolczi, Chunfei Wu, Paul T. Williams

Research output: Contribution to journalArticlepeer-review


Waste material was pyrolyzed in a horizontal tubular reactor at 530-540°C using different catalysts, such as activated carbon, MCM-41, HZSM-5 and their mixtures. Products were investigated by gas-chromatography, EDXRFS and standardized methods. Catalysts significantly affected the yields of volatiles; e.g. HZSM-5 catalyst increased especially the yield of gaseous hydrocarbons, while MCM-41 catalyst was responsible for increasing the pyrolysis oil yield. Synergistic effects were found using mixtures of different catalysts. Furthermore the catalysts modified the main carbon frame of the products. Pyrolysis oil obtained over HZSM-5 catalyst contained large amounts of aromatics, while MCM-41 catalyst mainly isomerized the carbon frame. Regarding contaminants it was concluded, that the sulphur content could be significantly decreased by activated carbon, however it had only a slight effect to the other properties of the products.
Original languageEnglish
Pages (from-to)67-74
Number of pages8
JournalInternational Journal of Chemical Engineering and Applications
Issue number1
Publication statusPublished - 01 Feb 2017
Externally publishedYes


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