Process For The Reutilization Of Yeast Biomass, With Separation Of Solids Prior To Distillation And Recovery Of Ethanol From Wet Cake, In The Integration Of Alcoholic Fermentations Of Sugarcane And Amylaceous Substrates And/Or For Amylaceous-Dedicated Distilleries

A process for the reutilization of yeast biomass, with separation of solids prior to distillation and recovery of ethanol from wet cake, in the integration of alcoholic fermentations of sugarcane and amylaceous substrates and/or for amylaceous-dedicated distilleries, used for ethanol production, wherein the crude wine obtained from fermentation (Em4), follows to centrifugation (EMC1), originating the Wine+Yeast+Oil mixture, which, when leaving the Decanter (EMC1) is centrifuged in Sedicanter (EMC2) and originates yeast cream and the wine+oil mixture, which is directed to a flywheel where it is distilled (EMC3);

• the vinasse from this distillation may pass a concentrator of vinasse and oil separator by Tridecanter (EMC4), and the concentrated vinasse (V) obtained will be sent to the dryer along with the wet corn cake to produce the DDGS;
• if the vinasse does not pass through the concentrator, it will be directed to the field for fertigation (F);
• the yeast cream can be directed to three different options:
• Be sent back to the treatment step of yeast (EMC6), so that there is recycle of yeasts in the fermentation of corn;
• Be sent to endogenous fermentation (EMC7) to increase its protein content;
• in this step ethanol is recovered, then the yeast is washed (EMC.sub.8) with water and centrifuged (EMC.sub.9), the solid part of the mixture is added to the wet and “pressed” cake (EMC.sub.10), and can be directly dried (EMC11) to originate solids (S) to be used as ration (R);
• or it can produce (EMC12) cell wall (P) and yeast extract (EL), while the alcoholic water is redirected to the distillation tank (EMC3);
• Be mixed directly to the wet cake to be pressed (EMC10) and routed to the drying step (EMC11).