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Optimization and characterization of glycolysis of waste polyethylene terephthalate (PET) with polyethylene glycol (PEG) / by Dinesh Kumar a/l Raman

By:

Dinesh Kumar Raman

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2013Description: xv, 64 p. : ill. ; 30 cm. + 1 CD-ROMISBN:

THE0004971(Local)

Subject(s):

Dissertation note: Project paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2013 Abstract: Chemical recycling of poly (ethylene) terephthalate (PET) has been the subject of increased interest as a valuable feedstock for different chemical processes. In this research, the glycolysis of PET will be studied using excess Polyethylene Glycol (PEG) as depolymerization agent assisted by magnesium acetate as catalyst. The influence of several operating conditions covering temperature (165–215 ◦C), reaction time (0–4 h), and catalyst concentration and PEG to PET weight ratio was analyzed. The purified monomer was characterized by Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Fourier Transform Infrared Spectroscopy (FTIR).Response surface methodology (RSM) software was used to predict the optimal condition of glycolysis process. The optimal condition of glycolysis time, temperature, amount of catalyst and amount of PEG were 205◦C, 2.49hr, 0.12g (2.4wt% of PET used) and 36.87g of PEG respectively. Where using this optimized condition the yield of the process can be reached up to 96.3%.

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Holdings ( 2 )
Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG	TP1180.P65 D56 2013 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000074653
Final Year Report	UMPLIB GAMBANG	CD 7026 \| TP1180.P65 D56 2013 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000074654

Project paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2013

Bibliography : p. 55-57

Chemical recycling of poly (ethylene) terephthalate (PET) has been the subject of increased interest as a valuable feedstock for different chemical processes. In this research, the glycolysis of PET will be studied using excess Polyethylene Glycol (PEG) as depolymerization agent assisted by magnesium acetate as catalyst. The influence of several operating conditions covering temperature (165–215 ◦C), reaction time (0–4 h), and catalyst concentration and PEG to PET weight ratio was analyzed. The purified monomer was characterized by Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Fourier Transform Infrared Spectroscopy (FTIR).Response surface methodology (RSM) software was used to predict the optimal condition of glycolysis process. The optimal condition of glycolysis time, temperature, amount of catalyst and amount of PEG were 205◦C, 2.49hr, 0.12g (2.4wt% of PET used) and 36.87g of PEG respectively. Where using this optimized condition the yield of the process can be reached up to 96.3%.