02303nam a2200241 a 4500 vtls000058084 KUKTEM 20251114204508.0 111228t2010 my a f m 000 0 eng d THE0003907(Local) 201905161453 shah 201112281712 ida UMP TP156.D42 T36 2010 rs Bc. Tam, Siow Fui Stability and chemical demulsification of water-in-crude oil emulsion (chemical method) / Tam Siow Fui Kuantan, Pahang : UMP, 2010 xv, 74 p. : ill. (some col.) ; 30 cm. + 1 CD-ROM Project paper (Bachelor of of Chemical Engineering) -- Universiti Malaysia Pahang - 2010 Bibliography : p. 67-73 The 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. Demulsification 0 0 0 1 10000 10000 2019-09-04 0 TP156.D42 T36 2010 rs Bc. 0000060931 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 10000 10000 2019-09-04 0 CD 5630 | TP156.D42 T36 2010 rs Bc. 0000060932 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA 3021 3027 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*9992