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008 111228t2010 my a f m 000 0 eng d
020 _aTHE0003907(Local)
039 9 _a201905161453
_bshah
_y201112281712
_zida
040 _aUMP
090 _aTP156.D42 T36 2010 rs Bc.
100 1 _aTam, Siow Fui
245 1 0 _aStability and chemical demulsification of water-in-crude oil emulsion (chemical method) /
_cTam Siow Fui
260 _aKuantan, Pahang :
_bUMP,
_c2010
300 _axv, 74 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper (Bachelor of of Chemical Engineering) -- Universiti Malaysia Pahang - 2010
504 _aBibliography : p. 67-73
520 3 _aThe formation of water-in-crude oil (W/O) emulsion can be encountered at many stages during drilling, producing, transporting and processing of crude oils. A good understanding of petroleum emulsions is necessary for the intention to control and enhance the processes in all these stages. In this study, both chemical and physicochemical properties of W/O emulsions that prepared by using cocamide DEA (non-ionic and biodegradable surfactant that synthesized from coconut oil) and three types of conventional chemical emulsifiers (span 83, SDDS, triton X-100) were investigated. 50-50% W/O emulsions were prepared at 800rpm (mixing speed) with three different concentrations of each emulsifier. These emulsions were tested for relative rates of water separation (stability test), viscosity, shear stress, and shear rate at varied temperature and stirring speed of Brookfield viscometer. Results shown that span 83 and cocamide DEA were both effective. For chemical demulsification, demulsifiers with different concentrations were used to treat 50-50 and 20-80% W/O emulsions prepared at varied mixing speed. The relative rates of water separation were characterized via beaker tests. Coco amine and palm-based oleyl amine (synthesized from coconut oil and palm oil) were concluded to promote the best coalescence of droplets in compared with others conventional demulsifiers: hexylamine, PEG 600, and propylene glycol.
650 0 _aDemulsification
999 _aVIRTUA
_c3021
_d3027
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*9992