processo para condicionamento de licor residual de so2-etanol-água (sew) derivado de madeira para fermentação com bactérias clostridia e processo para produção de butanol a partir de material de madeira

摘要

The present invention relates to producing chemicals and biofuels from wood material, e.g. mixed forest biomass. Specifically, the invention concerns a process for conditioning spent liquor produced by SO 2 -ethanol-water (SEW) fractionation of wood chips for fermentation to butanol, ethanol and acetone/isopropanol (so called ABE process) by Clostridia bacteria.