Vol 3, Issue 1 (2019)


The pervaporation separation method is considered to be a promising technique for bio-alcohol recovery from fermentation broths. Alcohol produced from biomass, known as bioalcohol, is an important renewable energy source.In this study, for the separation of bio-alcohol from a fermentation broth by pervaporation, the pristine polydimethylsiloxane (PDMS) and the PDMS/SiO2 mixed-matrix membranes (MMMs) with the nanoparticle contents of 1 wt  % were prepared with a novel preparation method, and characterized by a scanning electronmicroscopy (SEM), Fourier-transform infrared (FTIR) and thermal gravimetric analysis (TGA). Sorption studies were performed at 30, 40 and 50°C, whilepermeation studies were performed at 30°C for pure butanol, ethanol and water.Experimental results indicated that the nanoparticle incorporation into the polymeric matrix enhanced the membrane performance, and the prepared membranes can be used for bio-alcohol separation during the fermentation process.


  • Busra Demet
  • Yavuz Salt
  • Cenk Denktas
  • Bestami Ozkaya

Key words:

  • Membrane
  • Poly (dimethylsiloxane)
  • Bio-alcohol
  • Fermentation

Pages: 8

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