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Controlled Production of Emulsions Using a Crossflow Membrane
Author(s) -
Peng Shuangjiu,
Williams Richard A.
Publication year - 1998
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/(sici)1521-4117(199802)15:1<21::aid-ppsc21>3.0.co;2-t
Subject(s) - membrane emulsification , continuous phase modulation , materials science , microporous material , membrane , capillary action , drop (telecommunication) , tube (container) , emulsion , phase (matter) , mechanics , chemical engineering , chemistry , composite material , physics , mechanical engineering , telecommunications , biochemistry , organic chemistry , computer science , engineering
A method for manufacturing emulsions — crossflow membrane emulsification has been studied. This involves the formation of emulsions by breaking up the discontinuous phase into droplets in a controlled manner without the use of turbulent eddies. This is achieved by passing the discontinuous phase through a suitable microporous medium and injecting the droplets so formed directly into a moving continuous phase. This paper presents two examples of experimental data for droplet formation using a single pore (capillary tube) and a membrane tube. A high‐speed video camera (up to 1000 frames per second) was used to record the formation of droplet from a single pore and thus measure droplet growth and the detachment processes as a function of process parameters such as transmembrane pressure drop, membrane pore size, continuous phase crossflow velocity etc. Real emulsions were prepared using a membrane tube.