APPARATUS AND METHOD FOR HYDROLYSIS OF LIGNOCELLULOSIC MATERIALS

    公开(公告)号:US20200040413A1

    公开(公告)日:2020-02-06

    申请号:US16494823

    申请日:2018-03-13

    申请人: VALMET AB

    发明人: Göran WALLIN

    IPC分类号: C13K1/02 D21C1/04

    摘要: The invention relates to a method for extraction of saccharides from a lignocellulose containing material and comprises the steps of mixing the lignocellulose containing material with an acidic water solution to create a slurry having a pH value in the interval of 0-4; controlling the water content of the slurry to obtain a specific dry solid content of more than 30%; and introducing the slurry into an apparatus and performing an acid hydrolysis of the slurry in the apparatus, wherein at least parts of the apparatus that come into contact with the slurry are made of a material that comprises iron in an amount of at least 50% by weight and nickel in an amount of at least 1.5% by weight. The invention relates also to an apparatus for performing said method.

    METHOD OF PRODUCING SACCHARIFIED SOLUTION FROM USED ABSORBENT ARTICLE

    公开(公告)号:US20190271018A1

    公开(公告)日:2019-09-05

    申请号:US16320247

    申请日:2017-06-12

    IPC分类号: C12P19/14 C13K1/02

    摘要: A simple method is provided for producing a saccharified solution from a used absorbent article such as a used diaper. In order to produce a saccharified solution from a used absorbent article comprising a non-cellulosic liquid permeable surface material and an absorbent body that contains pulp fibers, the used absorbent article is immersed, without first being decomposed, in a saccharifying enzyme solution containing cellulase. The pulp fibers in the used absorbent article are saccharified by the cellulase, producing a saccharified solution. The produced saccharified solution is exuded out of the used absorbent article through the liquid permeable surface material, so it is possible to easily separate and recover the saccharified solution from the used absorbent article while maintaining the outer shape.