Co-feeding effect of waste plastic films on the catalytic pyrolysis of Quercus variabilis over microporous HZSM-5 and HY catalysts

Young Kwon Park, B. Lee, Hyung Won Lee, Atsushi Watanabe, Jungho Jae, Yiu Fai Tsang, Young Min Kim

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The co-pyrolysis of Quercus variabilis (Q. variabilis) and waste plastic films (PFs) was investigated to evaluate the co-feeding effect of waste PFs to the pyrolysis of Q. variabilis. Thermogravimetric analysis results revealed that the second TG (DTG) peak temperature of waste PFs was decreased from 479 °C to 470 °C by applying its co-pyrolysis with Q. variabilis, suggesting the effective interaction between the pyrolysis intermediates of Q. variabilis and waste PFs. Pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS) analysis results showed that the typical pyrolyzates of Q. variabilis and waste PFs were not changed during for their thermal co-pyrolysis. In contrast, the catalytic co-pyrolysis (CCP) of Q. variabilis and waste PFs in Py-GC/MS resulted in the additional aromatics formation, suggesting that the interaction between the pyrolysis intermediates of Q. variabilis and waste PFs over both HY and HZSM-5 leads to the enhanced formation of aromatics. Owing to the higher acidity and proper pore structure of HZSM-5, the CCP of Q. variabilis and waste PFs over HZSM-5 achieved higher aromatic and lower coke formation efficiency than that over HY.

Original languageEnglish
Article number122151
JournalChemical Engineering Journal
Volume378
DOIs
StatePublished - 15 Dec 2019

Keywords

  • Catalytic co-pyrolysis
  • HY
  • HZSM-5
  • Quercus variabilis
  • Waste plastic films

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