Comparison of energy potentials from combined ethanol and methane production using steam-pretreated corn stover impregnated with acetic acid

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kemiteknik

Nyckelord

Originalspråkengelska
Sidor (från-till)413-424
TidskriftBIOMASS & BIOENERGY
Volym67
StatusPublished - 2014
PublikationskategoriForskning
Peer review utfördJa

Relaterad forskningsoutput

Bondesson, P-M., 2016 okt 19, Lund, Sweden: Chemical Engineering, Lund University. 159 s.

Forskningsoutput: AvhandlingDoktorsavhandling (sammanläggning)

Visa alla (1)