Application of the response surface methodology for modeling demulsification of crude oil emulsion using a demulsifier |
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| Authors: | Negin Roshan Mohammad Reza Rahimpour |
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| Institution: | 1. Department of Chemical Engineering, College of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran;2. Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran |
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| Abstract: | The main objective of this research is to determine the capability of four surface-active compounds namely poly(ethylene glycol) distearate, N,N-dimethyldodecylamine N–oxide solution, polyoxyethylene (10) tridecyl ether, and polyethylene glycol sorbitan monooleate as demulsifier agents in breaking water-in-crude oil emulsion through the bottle test method. The influence of temperature, concentration, water content, and pH on demulsification efficiency of the studied demulsifiers was investigated via the response surface methodology (RSM) and the central composite design method (CCD) was applied to design the experiments. The optimum values of input variables to obtain the maximum water separation efficiency were determined based on the developed model by analyze of variance (ANOVA). The R-squared values demonstrate that the developed models could appropriately predict the experimental results of all demulsifier agents. |
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| Keywords: | Crude oil demulsification efficiency demulsifier emulsion response surface method |
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