![]() Increased temperature was found to cause instability of emultion. As an example, oil and water can form, first, an oil-in-water emulsion, in which the oil is the dispersed. There is a correlation between emulsion stability and physicochemical properties of crude oil which showed that higher asphaltene content in the crude oil would form more stable emultion. Two liquids can form different types of emulsions. The resin and wax do not form stale emulsion either aloneor together. The result show that the interfacial active component that stabilize emulsion is asphaltene. The study investigated the influence of asphaltene, resin and wax on emultion stability if it`s present in the crude oil alone, together or combination one of the others. Whereas emulsifiers, for example, surfactants and small particles, are commonly used to prepare stable oilwater mixtures, solid colloids often are stabilized. The emulsion stability was studied by measuring the volume of water or oil phase separated in variation with time, water hold up, and the heights of the sedimenting/coalescing interfaces during the separation at various temperatures. The stability of water-in-oil emulsion of some Malaysian crude oils was studied with particular emphasis on effect of interfacial active components existed in the crude oil, i.e. Thus, the results presented in this study showed that the new formulation can potentially replace the conventional dispersant used for marine oil spill remediation. The toxicity study against Gram-positive and -negative bacteria depicts the “practically harmless” nature of the developed formulation. The developed formulation worked effectively as a crude oil emulsifier and formed a stable crude oil emulsion. The toxicity of the newly developed formulation was evaluated to confirm their safe employment in sea water. In this study, the formulation comprised of choline based ionic liquid, choline laurate () and a biosurfactant, lactonic sophorolipids (LS) were used as a crude oil emulsifier. Therefore, to overcome this problem, the employment of environmentally benign dispersants is one of the effective conceivable approach. However, the toxicity related with these dispersants confined its application in marine environment. Chemical dispersants is one of the globally accepted remediation technique used for marine oil spill.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |