关键词: 渣油, 胶体稳定性, 模型, 表征方法

Abstract: This is a review of residual oil stability as it relates to efficient processing and utilization of the residue at different stages in terms of changes in environment and material. The current theory of colloidal hypothesis and model is introduced in this paper. While combine the theoretical study on the colloidal stability of residual oil with the stability prediction parameters such as CI, CⅡ, S and NCSI are briefly described, the stability analysis methods, including direct observational method, parameter method based on solvent titration and index evaluation method, are summarized and explained in detail. Based on comparing the advantages and disadvantages of these methods, this paper predicts the probably trend of the research on the colloidal stability of residual oil. The classical four-component theoretical model and the analytical method based on the solvent effect to characterize the stability will continue to be important for the long time. Nevertheless, an outlook is provided of the future of the study on the stability of the residue, the researchers will pay more and more attention on theoretical study based on molecular level and stability analysis methods which are more convenient, accurate and rapid.

Key words: residue, colloidal stability, model, analytical method