000			02279cam a2200349 a 4500
003			EG-GiCUC
005			20250223031247.0
008			150711s2014 ua e f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.04.M.Sc.2014.Ab.I
100	0		_aAbir Mohamed Safwat Sallah Khedr
245	1	0	_aIncreasing octane number through minor modifications in an existing PENEX - DIH unit / _cAbir Mohamed Safwat Sallah Khedr ; Supervised Mahmoud A. Elrifai , Reem S. Ettouney , Ahmed F. Nassar
246	1	5	_aزيادة رقم الأوكتين بإدخال تعديلات بسيطة على وحدة أزمرة قائمة
260			_aCairo : _bAbir Mohamed Safwat Sallah Khedr , _c2014
300			_a83 P. : _bplans ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Chemical Engineering
520			_aThe purpose of this work is to introduce some minor design modifications into an existing unit in a refinery with a view to maximizing the octane number of the gasoline product. Hydrotreated light naphtha is processed in the UOP PENEX - DIH unit, to convert low octane paraffins into higher octane iso-paraffins in order to increase the gasoline quality. The studied unit is the PENEX - DIH unit at MIDOR refinery, Alexandria. The study focuses on the process involving two distillation columns. These are the stabilizer and the de - isohexanizer. HYSYS software was used to simulate the selected unit. In order to get the best octane number of the product stream, five variables have been changed. These variables are the operating pressures of the stabilizer and the deisohexanizer, their feed plate positions and the cut plate position of the side stream in the deisohexanizer along with the reflux ratio inside the deisohexanizer
530			_aIssued also as CD
653		4	_aDe - isohexanizer
653		4	_aOctane Number
653		4	_aPENEX Unit
700	0		_aAhmed Fayez Nassar , _eSupervisor
700	0		_aMahmoud Abdelhakem Elrifai , _eSupervisor
700	0		_aReem Sayed Ettouney , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c51614 _d51614