Effect of dispersed phase feed time on the droplet size of Pickering emulsions produced in a stirred tank

The research article “Effect of dispersed phase feed time on the droplet size of Pickering emulsions produced in a stirred tank”, co-authored by METU member Asst. Prof. İnci Ayrancı Tansık, has been published in AIChE Journal.

The aim of this study was to investigate the effect of feed time of the oil phase on the average droplet size of Pickering emulsions produced in stirred tanks. Three types of impellers were tested: RT, up-pumping PBT (PBTU), and down-pumping PBT (PBTD). All the impellers were tested at two sizes, T/3 and T/2. All configurations were compared at constant tip speed, power per mass, and impeller Reynolds number. The droplet diameters were measured in Mastersizer® 3,000 (Malvern). The results showed that an increase in feed time causes a reduction in the average droplet size. At lower impeller speeds and higher feed times, the effect is more pronounced. It was found that some other geometric parameters also have an impact on the average droplet size.

Donmez, D., & Ayranci, I. (2020). Effect of dispersed phase feed time on the droplet size of pickering emulsions produced in a stirred tank. AIChE Journal, 66(6) doi:10.1002/aic.16942

Article access: https://aiche.onlinelibrary.wiley.com/doi/abs/10.1002/aic.16942

Tags/Keywords:

feed time, impeller type, liquid–liquid–solid mixing, Pickering emulsions, stirred tanks

Other authors:
Donmez, D. (METU)

Acknowledgment:
The authors would like to thank METU BAP Grant number BAP‐03‐04‐2017‐003 for funding this research.