| abstract |
A biomass pre-hydrolysis process comprising the following steps: discharging of the biomass into the helical feeder, starting, in the biomass pre-hydrolysis device, the operation of pressurization, which comprises the following steps: b.1) flooding the biomass pre-hydrolysis device with a pre-heated acidic solution; b.2) heating; and b.3) pressurizing; c) said process being characterized in that the pre-hydrolysis is carried out simultaneously with the rotary oscillation of the biomass pre-hydrolysis apparatus, purging of the steam and controlling of temperature, pressure, acid content, time of pre-hydrolysis, and liquid/solid ratio; d) accompanying the sugar content up to a value close to 10 bricks by means of a sugar meter; e) discharging the pre-hydrolysate in the tank through the heat exchanger; f) sugar-recovery washing; and g) discharging the cellulignin into mechanical washers or carts to be washed by percolation. <IMAGE> |