The Stabilization of Water-in-Hydrocarbon Emulsions by Asphaltenes and Resins
作者： Olga V. Gafonova , Harvey W. Yarranton
关键词: Chemistry 、 Heptane 、 Chemical engineering 、 Asphaltene 、 Organic chemistry 、 Aqueous solution 、 Adsorption 、 Solvent 、 Gravimetric analysis 、 Hydrocarbon 、 Emulsion
摘要: The role of asphaltenes and resins in stabilizing water-in-crude oil emulsions was investigated by measuring the interfacial composition stability model composed water with mixtures toluene, heptane, asphaltenes, resins, native solids. (mass surface coverage) determined from a combination emulsion area measurements concentration both continuous phases. calculated drop size distributions measured optical microscopy. concentrations were found gravimetric analysis. assessed amount resolved after heating periodic centrifugation emulsions. Asphaltene coverage to increase an asphaltene bulk until limiting achieved. Surprisingly, while always tend stabilize these emulsions, decreased as increased. This change attributed configuration on interface. addition good solvent reduce adsorbed stability. destabilized It appears that act for and, at sufficiently high concentrations, are able replace Naturally occurring solids coprecipitate had little or no effect adsorption but dramatically increased results suggest causes most stable
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David L. Mitchell, James G. Speight, The solubility of asphaltenes in hydrocarbon solvents Fuel. ,vol. 52, pp. 149- 152 ,(1973) , 10.1016/0016-2361(73)90040-9
V.B. Menon, A.D Nikolov, D.T. Wasan, Interfacial effects in solids-stabilized emulsions: effect of surfactant and pH on film tension and particle interaction energy Journal of Dispersion Science and Technology. ,vol. 9, pp. 575- 593 ,(1988) , 10.1080/01932698808944012
Subodhsen Peramanu, Barry B. Pruden, Parviz Rahimi, Molecular Weight and Specific Gravity Distributions for Athabasca and Cold Lake Bitumens and Their Saturate, Aromatic, Resin, and Asphaltene Fractions Industrial & Engineering Chemistry Research. ,vol. 38, pp. 3121- 3130 ,(1999) , 10.1021/IE9806850
E Sheu, Adsorption kinetics of asphaltenes at toluene/acid solution interface Fuel. ,vol. 74, pp. 1475- 1479 ,(1995) , 10.1016/0016-2361(95)00120-T
Joseph D. McLean, Peter K. Kilpatrick, Effects of Asphaltene Solvency on Stability of Water-in-Crude-Oil Emulsions joint international conference on information sciences. ,vol. 189, pp. 242- 253 ,(1997) , 10.1006/JCIS.1997.4807
D.D. Eley, M.J. Hey, J.D. Symonds, Emulsions of water in asphaltene-containing oils 1. Droplet size distribution and emulsification rates Colloids and Surfaces. ,vol. 32, pp. 87- 101 ,(1988) , 10.1016/0166-6622(88)80006-4
Khr Khristov, S.D Taylor, J Czarnecki, J Masliyah, Thin liquid film technique — application to water–oil–water bitumen emulsion films Colloids and Surfaces A: Physicochemical and Engineering Aspects. ,vol. 174, pp. 183- 196 ,(2000) , 10.1016/S0927-7757(00)00510-0
Sócrates Acevedo, Gastón Escobar, María Antonieta Ranaudo, Luís B Gutiérrez, None, Discotic shape of asphaltenes obtained from g.p.c. data Fuel. ,vol. 73, pp. 1807- 1809 ,(1994) , 10.1016/0016-2361(94)90174-0
Sócrates Acevedo, Gastón Escobar, Luis Gutiérrez, Hercilio Rivas, None, Isolation and characterization of natural surfactants from extra heavy crude oils, asphaltenes and maltenes. Interpretation of their interfacial tension-pH behaviour in terms of ion pair formation Fuel. ,vol. 71, pp. 619- 623 ,(1992) , 10.1016/0016-2361(92)90163-I
John P. Dickie, Teh Fu. Yen, Macrostructures of the asphaltic fractions by various instrumental methods Analytical Chemistry. ,vol. 39, pp. 1847- 1852 ,(1967) , 10.1021/AC50157A057