Patent ID: 8287651
Filing Date: 2012-10-16
Classification: B09B,C08H,C10G,C10L,C12P,Y02E,Y02P,Y10T

Abstract:
1. A process for the pretreatment of corncob biomass for biofuel production by fermentation, comprising the steps of exposing corncob to steam in a reaction vessel at an elevated temperature and reaction pressure for a preselected exposure time, venting volatile compounds continuously over the pretreatment time and releasing the reaction pressure for explosive decomposition of the corncob biomass into a fibrous solids portion and a condensate portion, wherein the exposing step is carried out at a temperature of 190° C.-210° C. and a pressure of 190 psig to 275 psig and an exposure time of 3 to 10 minutes for minimizing the acetic content in the fibrous solids portion.