Insights into pyrolysis and co-pyrolysis of biomass and polystyrene: Thermochemical behaviors, kinetics and evolved gas analysis

ÖZSİN G., PÜTÜN A. E.

ENERGY CONVERSION AND MANAGEMENT, cilt.149, ss.675-685, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 149
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.enconman.2017.07.059
  • Dergi Adı: ENERGY CONVERSION AND MANAGEMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.675-685
  • Anahtar Kelimeler: Biomass, Polystyrene, Pyrolysis, TGA/MS/FT-IR, Kinetic, Gas analysis, THERMAL-DECOMPOSITION, ACTIVATION-ENERGY, THERMOGRAVIMETRIC ANALYSIS, HEATING RATE, WASTE, CONVERSION, WOOD, PRODUCE, CELLULOSE, PLASTICS
  • Anadolu Üniversitesi Adresli: Evet

Özet

The purpose of this study was to investigate the effect on polystyrene (PS) during co-pyrolysis with biomass through thermal decomposition. The model-free iso-conversional methods (Kissinger, Friedman, Flynn-WallOzawa, Kissinger-Akahira-Sunose, Starink and Vyazovkin) were adopted to calculate activation energy of the pyrolysis and co-pyrolysis process of two biomass samples (walnut shell: WS and peach stones: PST) with PS. It is found that biomass blending to PS decreased activation energy values and resulted in multi-step reaction mechanisms. Furthermore, changes in the evolution profiles of methyl, water, methoxy, carbon dioxide, benzene and styrene was monitored through evolved gas analysis via TGA/FT-IR and TGA/MS. Detection of temperature dependent release of volatiles indicated the differences occur as a result of compositional differences of biomass.