Physicochemical and rheological characterization of diesel fuel nanoemulsions at different water and surfactant contents

• Published in: Journal of molecular liquids 2017-04, Vol.231, p.440-450
• Main Authors: Noor El-Din, M.R., Osman, D.I., Rashad, Ahmed M., Mishrif, Marwa R., El-Sharaky, E.A.
• Format: Article
• Language: English
• Subjects: Calorific value; Nanoemulsion; Ostwald ripening; Rheology behivour
• ISSN: 0167-7322; 1873-3166
• DOI: 10.1016/j.molliq.2017.01.104

This work aiming to produce a diesel fuel nanoemulsions with high performance exploited a new preparation technique of low energy emulsification method namely batch addition. This technique helps in production of diesel fuel nanoemulsions has a small water droplet sizes, highly transparent appearance and performance from points of view of physicochemical and rheology behaviors over a period of time as 3months. To achieve this aim, twenty nanoemulsions were prepared at conditions of water and surfactant contents ranging from [5 to 10] to [4 to 10] wt/wt, of total weight of nanoemulsion, respectively at ambient temperature. The prepared nanoemulsions were evaluated for the rheological behaviors at interval time as 0, 1, 2 and 3months. The results indicated that the rheological properties of the prepared emulsions behave as non-Newtonian flow in the range of shear rate from 132 to 191s−1 with a yield value (τ) ranged from 2.14 to 5.11D/cm2 at 6wt% water content, 30°C and 2months time laps followed by Newtonian regime. •Diesel fuel nanoemulsion was prepared by new technique namely batch addition.•The nanoemulsions with initial water droplet size