000			02746nam a2200253 a 4500
001			vtls000030021
003			KUKTEM
005			20251114204454.0
008			080707t my f m 000 0 eng|d
020			_aTHE0002124(Local)
039		9	_a201905131647 _byusri _c201107132240 _dVLOAD _c200908141456 _dVLOAD _c200908141427 _dVLOAD _y200807071249 _zkam
040			_aUMP
090			_aQD305.A2 N67 2007 rs Thesis
100	0		_aNorhayati Abdullah
245	1	0	_aSimulation study on the esterification process in the production of PETD / _cNorhayati Abdullah
260			_aKuantan, Pahang : _bUMP, _c2007
300			_a90 p. : _bill. (some col.) ; _c30 cm.
502			_aThesis (Master of Engineering (Chemical)) -- Universiti Malaysia Pahang - 2007
520	3		_aPETD is an important industrial varnish which reqUlres relatively complicated processing particularly the separation process in order to produce it. At this meantime, there are lacks of research conducted on producing PETD in Malaysia. Therefore, an initiative was taken to carry out this research in order to come out with a method of producing PETD. At present, the best and preferred routes to produce PETD is via esterification reaction of pentaerythritol and dodecanoic acid. The reaction system involved is found to be suitable for the application of hybrid system which consists of reaction batch, flash column and membrane module. However, it is not commercially attractive in view of the low conversion and PETD purity attainable using the option. Through parametric analysis, it was learned that the performance of PETD esterification significantly improved at 2: 1 feed ratio which operates at 180°C batch temperature, optimum flash pressure and temperature to avoid excessive presence of water in bottom stream of distillate were found to be 250°C at O.9atm. Capillary size and length which contributes to final PETD purity was identified to be at average of O.0409cm2 and 400cm respectively. It is hoped that this research study is opens up a possibility for commercialization of PETD esterification reaction as the product purity and conversion achieved through the configuration proposed is considered attractive. In addition. by utilizing the proposed configuration, significant cost saving can be achieved as this process only requires normal flash method embedded with simple membrane module. Meanwhile parametric analysis carried out earlier in this research work has been able to explain some of the factors that limit the performance of this hybrid system. -Author
650		0	_aEsterification
650		0	_aPentaerythritol
650		0	_aSeparation (Technology)
999			_aVIRTUA40 _c2621 _d2627
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5200*6500*6501*6502*9992