Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7073780 | Bioresource Technology | 2015 | 7 Pages |
Abstract
Ethanol and biogas are energy carriers that could contribute to a future energy system independent of fossil fuels. Straw is a favorable bioenergy substrate as it does not compete with food or feed production. As straw is very resistant to microbial degradation, it requires a pretreatment to insure efficient conversion to ethanol and/or methane. This study investigates the effect of combining biological pretreatment and steam explosion on ethanol and methane yields in order to improve the coupled generation process. Results show that the temperature of the steam explosion pretreatment has a particularly strong effect on possible ethanol yields, whereas combination with the biological pretreatment showed no difference in overall energy yield. The highest overall energy output was found to be 10.86 MJ kg VSâ1 using a combined biological and steam explosion pretreatment at a temperature of 200 °C.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Franz Theuretzbacher, Johanna Blomqvist, Javier Lizasoain, Lena Klietz, Antje Potthast, Svein Jarle Horn, Paal J. Nilsen, Andreas Gronauer, Volkmar Passoth, Alexander Bauer,