US 12,305,214 B2
Method and an apparatus for increasing concentration of soluble carbohydrate containing fraction, a soluble carbohydrate containing fraction, a solid fraction and their use
Mauno Miettinen, Lappeenranta (FI); Sami Turunen, Lappeenranta (FI); and Juha Tamper, Levänen (FI)
Assigned to UPM-KYMMENE CORPORATION, Helsinki (FI)
Filed by UPM-KYMMENE CORPORATION, Helsinki (FI)
Filed on Jan. 23, 2023, as Appl. No. 18/100,411.
Application 18/100,411 is a continuation of application No. 15/544,380, granted, now 11,591,624, previously published as PCT/FI2016/050076, filed on Feb. 5, 2016.
Claims priority of application No. 20155076 (FI), filed on Feb. 6, 2015.
Prior Publication US 2023/0212618 A1, Jul. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C12P 7/10 (2006.01); C08H 7/00 (2011.01); C08H 8/00 (2010.01); C12M 1/00 (2006.01); C12M 1/33 (2006.01); C12N 1/18 (2006.01); C12P 19/02 (2006.01); C13K 13/00 (2006.01)
CPC C12P 7/10 (2013.01) [C08H 6/00 (2013.01); C08H 8/00 (2013.01); C12M 45/02 (2013.01); C12M 45/09 (2013.01); C12M 45/20 (2013.01); C12N 1/18 (2013.01); C12P 19/02 (2013.01); C13K 13/007 (2013.01); C12P 2201/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for increasing concentration of a water soluble carbohydrate, the method comprising:
forming a lignocellulose material by treating raw material using a treatment including acid hydrolysis and steam explosion;
separating a washing filtrate and a water soluble carbohydrate containing fraction from the lignocellulose material in a solid-liquid separation stage;
recirculating a first stream including at least a part of the washing filtrate from the solid-liquid separation stage to the lignocellulose material that is subjected to the solid-liquid separation stage for increasing the concentration of the water soluble carbohydrate; and
recirculating a second stream including at least a part of the water soluble carbohydrate containing fraction from the solid-liquid separation stage to the lignocellulose material that is subjected to the solid-liquid separation stage.