Patent ID: 11946090
Assignee: VALMET AB
Field: Biotechnology (Chemistry)
Classification: CPC C  D  Y | IPC C

Claim 0:
1. A system for treating biomass material, comprising:
a first dewatering stage configured to receive biomass material, to remove liquid from the biomass material, and to feed the biomass material forward in the system;
a first filtrate tank configured to receive and collect the liquid removed in the first dewatering stage;
an addition stage located downstream of the dewatering stage and operatively coupled to the first dewatering stage, the addition stage configured to receive the dewatered biomass material, wherein the addition stage comprises inlets for adding an acid-containing solution into the addition stage, to treat the biomass;
a reactor stage configured to receive the biomass material treated in the addition stage and to perform a pre-hydrolysis process to the biomass material; and
a filtrate feeder configured to feed the liquid from the first filtrate tank to the reactor stage,
wherein the first dewatering stage and the reactor stage are configured to allow the liquid collected from the first dewatering stage to recycle to the reactor stage.