Abstract: This disclosure describes processes for using a single cellulosic feedstock or a combination of two or more different cellulosic feedstocks with a starch component to produce a fermented product. The process includes separating the components of the cellulosic feedstocks with fractionation, pretreating a component with wet fractionation with chemicals, hydrolysis and fermenta-tion of the pretreated feedstock(s) to produce cellulosic biofuel. The process may include combining the cellulosic feedstock(s) with other components to a cook and/or a fermentation process, distilling and dehydrating the combined components to produce the biofuel. The process may also include producing a whole stillage stream from the feedstock(s) and mechanically processing the whole stillage stream to produce a high-value protein animal feed.

Abstract: This disclosure describes processes for using biomass feedstock to produce a fermented product and co-products. The process includes washing the biomass feedstock, pretreating the washed feedstock, hydrolysis and fermentation of the pretreated feedstock(s) to produce cellulosic biofuel and co-products. The processes may also include yeast hydrolysis and aerobic propagation.