AI Article Synopsis
- The MixAlco process effectively converts biomass into carboxylate salts for various chemicals and fuels, with this study focusing on glycerol as a potential feedstock.
- Both batch and continuous fermentation methods were used to compare crude, distilled, and refined glycerol, all of which showed promising results.
- The CSTR method achieved high acid concentrations, while the packed-bed method generated significant cell materials for further applications.
Article Abstract
The MixAlco process biologically converts biomass to carboxylate salts that may be converted to a variety of chemicals and fuels. This study examines the viability of different types of glycerol as a potential feedstock. Batch fermentations of crude biodiesel glycerol were compared to distilled and refined glycerol. Continuous fermentations were performed in a CSTR and a packed-bed fermentor with refined glycerol. While crude and distilled glycerol are difficult to process industrially, all types of glycerol performed well during MixAlco fermentations, producing acid concentrations above 22 g/L and conversions of greater than 65%. The CSTR configuration produced excellent acid concentrations (16 g/L) while the packed-bed configuration produced high amounts of cell material for use in cell extract products or starter cultures.
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| http://dx.doi.org/10.1016/j.biortech.2010.07.041 | DOI Listing |
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