OriginalA study of the effects of phenolic de-emulsifier solutions in xylene on thede-emulsification of a Nigerian crude oil emulsion

Efeovbokhan, Vincent Enon and Udonne, Joseph Denis and Ayoola, A. A. and Shogbamu, Oluwadara Temitayo and Babalola, Rasheed (2017) OriginalA study of the effects of phenolic de-emulsifier solutions in xylene on thede-emulsification of a Nigerian crude oil emulsion. Journal of Applied Research and Technology, 15. pp. 110-121.

PDF Download (2342Kb)

Abstract

The research and development of de-emulsifiers for separating water from crude oil emulsions usually result in varying degrees of success,depending on the location and the type of crude being treated. This makes de-emulsifiers crude oil specific and thus gives rise to the continuoussearch for more and effective de-emulsifiers that can meet the specific needs of each locality. In this study, base-catalyzed phenol formaldehyderesins were formulated at varying formaldehyde to phenol ratios (1.2:1–1.8:1); the assessment was carried out by the bottle test method at variedde-emulsifier concentrations (vol/vol) in xylene acting as solvent diluent. The bottle test was carried out at an optimum temperature of 70◦C, dosageof 50 ppm and residence times of 10 and 20 min. A factorial design was done to determine the best combination of the de-emulsification conditionsfor the resolution of the Nigerian crude oil emulsion. The results were analyzed and optimized using Minitab 16 utilizing a Pareto chart, normaleffects, main effects and interaction plots. From the analysis carried out, it was found that the most effective formulated de-emulsifier was obtainedat formaldehyde to phenol (F:P) mole ratio of 1.8:1, 80% de-emulsifier concentration in xylene and residence time of 20 min. This de-emulsifierobtained a water separation efficiency of 79% compared to the commercial de-emulsifier which gave 71% efficiency. Thus the solution of P:Fde-emulsifiers in xylene enhances the de-emulsification of the Nigerian crude oil emulsions.

Item Type:	Article
Uncontrolled Keywords:	Resins; Diluent; Emulsion; De-emulsification; Xylene; Crude oil
Subjects:	T Technology > T Technology (General) T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	02 Apr 2019 14:56
Last Modified:	02 Apr 2019 14:56
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/12560

Actions (login required)

View Item