000			02100nam a2200265 a 4500
001			vtls000075751
003			KUKTEM
005			20251114204544.0
008			131028t2013 my da f abm 000 0 eng d
020			_aTHE0004970(Local)
039		9	_a201905140836 _bSHAHRILJ _y201310281106 _znabilah
040			_aUMP
090			_aTP1180.P65 C43 2013 rs Bc.
100	1		_aChan, Wei Tatt
245	1	0	_aKinetic study of catalytic glycolysis of PET wastes with zinc acetate / _cChan Wei Tatt
260			_aKuantan, Pahang : _bUMP, _c2013
300			_axvii, 81 p. : _bill. ; _c30 cm. + _e1 CD-ROM
502			_aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2013
504			_aBibliography : p. 69-74
520	3		_aPoly(ethylene terephthalate) (PET) was depolymerized by di-ethylene glycol (DEG) in the presence of zinc acetate. Qualitative analysis showed that the main product from glycolysis was bis(hydroxylethyl) terephthalate. Fourier Transform infra-red (FTIR) was used for characterization of product while thermo-gravimetry analysis (TGA) and differential scanning calorimetry (DSC) were used for thermal analysis. The respond surface methodology (RSM) was used to predict the optimum conditions of reaction which includes time, temperature, amount of catalyst and amount of DEG. Besides that, the analysis of variance (ANOVA) was employed to evaluate the validity of the developed model. The maximum conversion obtained from RSM was 99.79%, The optimum temperature, time, amount of catalyst and amount of DEG were 183.37 °C, 0.82 hour, 0.09 g and 10.33 g respectively. Lastly, a simple theoretical power-law model was developed to predict the time evolution of conversion. This kinetic model was found to be consistent with the experimental data. From the study, activation energy and enthalpy of reaction of 38.24 kJ/mol and 14.87kJ/mol were obtained, respectively.
650		0	_aPolyethylene terephthalate
650		0	_aGlycolysis
650		0	_aZinc
999			_aVIRTUA40 _c4043 _d4049
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*6502*9992