Recovery of Polyethylene Telephthalate Monomer over Cu or Mn/γ-Al2O3 Catalysts

Cu, Mn/γ-Al2O3 촉매상에서 polyethylene telephthalate 단량체의 회수 연구

  • Sim, Jae-Wook (Department of Chemical Engineering, Kangwon National University) ;
  • Kim, Seung-Soo (Department of Chemical Engineering, Kangwon National University)
  • 심재욱 (강원대학교 삼척캠퍼스 화학공학과) ;
  • 김승수 (강원대학교 삼척캠퍼스 화학공학과)
  • Received : 2017.06.02
  • Accepted : 2017.07.12
  • Published : 2017.08.10


Polyethylene terephthalate (PET) has been widely applied in polymers and packaging industries to produce synthetic fibers, films, drink bottles or food containers. Therefore, it has become one of the major plastic wastes. In this article, glycolysis known as one of the main methods in PET chemical recycling was investigated using a glycol to break down the polymer into a monomer. Glycolysis of PET and ethylene glycol was performed in a micro-tubing reactor under various conditions. The effect of glycolysis conditions on the product distribution was investigated at experimental conditions of the EG/PET ratio of 1~4, the reaction time of 15~90 min and the reaction temperature of $250{\sim}325^{\circ}C$ with Mn and Cu catalysts. The highest yield of bis (2-hydroxyethyl) terephthalate monomer (BHET) was obtained as 89.46 wt% under the condition of the reaction temperature of $300^{\circ}C$ and the time of 30 min using 10 wt% $Cu/{\gamma}-Al_2O_3$ catalyst, with the PET and ethylene glycol ratio of 1 : 2.


Supported by : 강원대학교


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