High-throughput premix membrane emulsification using nickel sieves having straight-through pores

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We report on the use of nickel sieves, having a uniform pore size (typically 10 µm × 300 µm), for (oil-in-water) premix emulsification at relatively low transmembrane pressures. The droplet break-up was found to be based on elongation and recompression of droplets typical of high-pressure homogenization. The dependence on the transmembrane pressure indicated at least partial turbulent conditions. In line with this, the transmembrane fluxes were very high, while a reasonable span (around 1) of the droplet size was found. There was no indication of fouling in the process, even after 5 passes, which indicates that the process is tolerant to product and conditions. A master curve was found for the Weber number as function of the transmembrane pressure normalized on the Laplace pressure of the emulsion before emulsification, which is helpful in further scale-up of this process
Original languageEnglish
Pages (from-to)116-123
JournalJournal of Membrane Science
Issue number1-2
Publication statusPublished - 2011


  • microchannel emulsification
  • multiple emulsions
  • break-up
  • droplets
  • viscosity
  • systems
  • flow
  • homogenization
  • dispersions
  • dynamics


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