Vol 3, Issue 1 (2019)
Preparation and Characterization of PDMS/SiO2 Mixed Matrix Membranes for Separation of Bio-alcohols from Fermentation Broth
Abstract:
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.
Authors:
- Busra Demet
- Yavuz Salt
- Cenk Denktas
- Bestami Ozkaya
Key words:
- Membrane
- Poly (dimethylsiloxane)
- Bio-alcohol
- Fermentation
Pages: 8