Comparison of energy potentials from combined ethanol and methane production using steam-pretreated corn stover impregnated with acetic acid
Research output: Contribution to journal › Article
Acetic acid was investigated as a catalyst in steam pretreatment of corn stover. The purpose was to study ethanol production using either baker's yeast or a genetically modified pentose-fermenting version of Saccharomyces cerevisiae, KE6-12. Biogas production was investigated as an alternative for utilization of xylose. The high levels of acetic acid was found to be toxic using KE6-12. Some pentose fermentation was achieved, but the ethanol end concentration was almost the same as using baker's yeast (28 g L1 compared to 27 g L1). Using xylose for biogas production resulted in a high total energy recovery. The highest total energy recovery in the products, i.e. ethanol, methane and solids, obtained was 88% compared with the energy in ingoing raw material. This result was achieved when the solids and the liquid was separated after pretreatment.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||BIOMASS & BIOENERGY|
|Publication status||Published - 2014|
Related research output
Evaluation of Pretreatment and Process Configurations for Combined Ethanol and Biogas Production from Lignocellulosic BiomassPia-Maria Bondesson, 2016 Oct 19, Lund, Sweden: Chemical Engineering, Lund University. 159 p.
Research output: Thesis › Doctoral Thesis (compilation)