Heat Transfer Studies in an Agitated Vessel During Aqueous Alkaline Depolymerization of Poly(Ethylene Terephthalate) (PET) Waste |
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| Authors: | A. S. Goje V. R. Diware S. Mishra |
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| Affiliation: | 1. Plastics and Polymer Engineering Department , Maharashtra Institute of Technology , Aurangabad, India asgoje@rediffmail.com;3. Department of Chemical Technology , North Maharashtra University , Jalgaon, Maharashtra, India |
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| Abstract: | ![]()
Depolymerization reactions of poly(ethylene terephthalate) (PET) waste in aqueous sodium hydroxide solution were carried out in a batch reactor at 150°C at atmospheric pressure. Disodium terephthalate (terephthalic acid salt) and ethylene glycol (EG) remain in the liquid phase. Terephthalic acid (TPA) salt was converted into TPA. The produced monomeric products (TPA and EG) were recovered. Various design parameters were estimated. Design of a batch reactor was undertaken for depolymerization of PET waste in aqueous sodium hydroxide solution. As expected, the Reynolds numbers, Prandtl numbers, Nusselt numbers, coil-side heat transfer coefficients, and overall heat transfer coefficients were consistent with the fluid velocities. It shows excellent potential for commercialization of the depolymerization of PET waste. |
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| Keywords: | Poly(ethylene terephthalate) Depolymerization Agitated vessel Heat transfer Transfer coefficients |
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