公开(公告)号：US12139853B2

公开(公告)日：2024-11-12

申请号：US17252438

申请日：2019-04-10

Applicant: VALMET AB

Inventor： Olof Melander ,  Peter Björklund

IPC: D21C7/08 ,  D21B1/36 ,  D21C1/02 ,  D21C1/04 ,  D21C7/06 ,  D21C7/12

Abstract: A method for continuous steam explosion discharge of a pressurised reactor for thermal treatment of lignocellulose biomasses. The steam explosion discharge is complete decoupled from the thermal treatment step and the loss of steam from the process is fully controlled without jeopardizing the mechanical disintegration of the lignocellulose material from the process.

公开(公告)号：US12098505B2

公开(公告)日：2024-09-24

申请号：US17050013

申请日：2019-03-22

Applicant: VALMET AB

Inventor： Olof Melander ,  Patrik Pettersson ,  Johan Carlsson

IPC: D21B1/36 ,  D21C1/02 ,  D21C7/06 ,  D21C7/08 ,  D21C7/10

CPC classification number: D21B1/36 ,  D21C1/02 ,  D21C7/06 ,  D21C7/08 ,  D21C7/10

Abstract: A system for treatment of a biomass material and a method for transporting biomass material, said system comprising: —a first vessel (3) in which said biomass material is treated at a first pressure;—a second vessel (5) in which said biomass material is collected at a second pressure which is lower than the first pressure; and—a transporting pipe (7) connecting an outlet (9) of the first vessel (3) with an inlet (11) of the second vessel (5) for transporting the biomass material from the first vessel to the second vessel, wherein said transporting pipe (7) comprises at least one restriction (13) for control of the flow in the transporting pipe and hereby providing a pressure drop to the transported biomass material, wherein at least one of said at least one restriction (13) is provided somewhere in the second half of the length of the transporting pipe (7) starting from the first vessel (3) and ending at the second vessel (5).